Faculty Profiles - MORI Izumi.C

Papers - MORI Izumi.C

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Sulfur dioxide-induced guard cell death and stomatal closure are attenuated in nitrate/proton antiporter AtCLCa mutants

Lia Ooi, Takakazu Matsuura, Izumi C Mori

Plant And Cell Physiology 2025.6

Amino Acid Substitutions in Loop C of Arabidopsis PIP2 Aquaporins Alters the Permeability of CO2

Shaila Shermin Tania, Shigeko Utsugi, Yoshiyuki Tsuchiya, Shizuka Sasano, Maki Katsuhara, Izumi C. Mori

Plant, Cell & Environment 2025.6

Physiological and Biochemical Traits of Dormancy Release and Growth Resumption in Japanese Cedar in the Warm-Temperate Zone

Shoma Hiejima, Hiroto Seino, Rico Hachisuka, Yuka Watanabe, Takakazu Matsuura, Izumi C. Mori, Shin Ugawa

Forest Science 2025.6

TGG1 and TGG2 mutations impair allyl isothiocyanate-mediated stomatal closure in Arabidopsis thaliana. International journal

Kadri Oumaima, Mohammad Shakhawat Hossain, Wenxiu Ye, Eiji Okuma, Mohammad Issak, Mohammad Mahbub Islam, Misugi Uraji, Yoshimasa Nakamura, Izumi C Mori, Shintaro Munemasa, Yoshiyuki Murata

Protoplasma 2025.2

Language：English Publishing type：Research paper (scientific journal)

Myrosinase, referred to as thioglucoside glucohydrolase (TGG), plays a crucial role in plant physiology through catalyzing the hydrolysis of glucosinolates into bioactive isothiocyanates. In Arabidopsis thaliana, the myrosinases TGG1 and TGG2 are essential for abscisic acid- and methyl jasmonate-induced stomata closure. Allyl isothiocyanate (AITC), one of myrosinase products, triggers stomatal closure in A. thaliana. We investigated stomatal responses to AITC to clarify the role of TGG1 and TGG2 in Arabidopsis guard-cell signaling. Allyl isothiocyanate at 50 μM and 100 μM induced stomatal closure in the tgg1 and tgg2 single mutants but not in the tgg1 tgg2 double mutant. Furthermore, AITC at 50 μM induced the production of reactive oxygen species and nitric oxide, cytosolic alkalization, and oscillations in cytosolic free calcium concentration in guard cells of both wild-type and mutant plants. These findings suggest that TGG1 and TGG2 are involved in AITC signaling pathway through interaction with signal component(s) downstream of these signaling events, which is not accompanied by hydrolysis of glucosinolates because of the difference in subcellular localization between enzymes (myrosinases) and substrates (glucosinolates).

DOI： 10.1007/s00709-025-02039-z

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Plant growth‐promoting abilities of Methylobacterium sp. 2A involve auxin‐mediated regulation of the root architecture Reviewed

Cecilia E. M. Grossi, Akio Tani, Izumi C. Mori, Takakazu Matsuura, Rita M. Ulloa

Plant, Cell & Environment 2024.8

Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley

Abstract

Methylobacterium sp. 2A, a plant growth‐promoting rhizobacteria (PGPR) able to produce indole‐3‐acetic acid (IAA), significantly promoted the growth of Arabidopsis thaliana plants in vitro. We aimed to understand the determinants of Methylobacterium sp. 2A–A. thaliana interaction, the factors underlying plant growth‐promotion and the host range. Methylobacterium sp. 2A displayed chemotaxis to methanol and formaldehyde and was able to utilise 1‐aminocyclopropane carboxylate as a nitrogen source. Confocal microscopy confirmed that fluorescent protein‐labelled Methylobacterium sp. 2A colonises the apoplast of A. thaliana primary root cells and its inoculation increased jasmonic and salicylic acid in A. thaliana, while IAA levels remained constant. However, inoculation increased DR5 promoter activity in root tips of A. thaliana and tomato plants. Inoculation of this PGPR partially restored the agravitropic response in yucQ mutants and lateral root density was enhanced in iaa19, arf7, and arf19 mutant seedlings. Furthermore, Methylobacterium sp. 2A volatile organic compounds (VOCs) had a dose‐dependent effect on the growth of A. thaliana. This PGPR is also able to interact with monocots eliciting positive responses upon inoculation. Methylobacterium sp. 2A plant growth‐promoting effects can be achieved through the regulation of plant hormone levels and the emission of VOCs that act either locally or at a distance.

DOI： 10.1111/pce.15116

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Cytosolic acidification and oxidation are the toxic mechanisms of SO2 in Arabidopsis guard cells Reviewed

Mahdi Mozhgani, Lia Ooi, Christelle Espagne, Sophie Filleur, Izumi C Mori

Bioscience, Biotechnology, and Biochemistry 2024.7

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Oxford University Press (OUP)

ABSTRACT

SO2/H2SO3 can damage plants. However, its toxic mechanism has still been controversial. Two models have been proposed, cytosolic acidification model and cellular oxidation model. Here, we assessed the toxic mechanism of H2SO3 in three cell types of Arabidopsis thaliana, mesophyll cells, guard cells (GCs), and petal cells. The sensitivity of GCs of Chloride channel a (CLCa)-knockout mutants to H2SO3 was significantly lower than those of wildtype plants. Expression of other CLC genes in mesophyll cells and petal cells were different from GCs. Treatment with antioxidant, disodium 4,5-dihydroxy-1,3-benzenedisulfonate (tiron), increased the median lethal concentration (LC50) of H2SO3 in GCs indicating the involvement of cellular oxidation, while the effect was negligible in mesophyll cells and petal cells. These results indicate that there are two toxic mechanisms of SO2 to Arabidopsis cells: cytosolic acidification and cellular oxidation, and the toxic mechanism may vary among cell types.

DOI： 10.1093/bbb/zbae092

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MAP4K1 and MAP4K2 regulate ABA-induced and Ca2+-mediated stomatal closure in Arabidopsis

Kota Yamashita, Sotaro Katagiri, Hinano Takase, Yangdan Li, Airi Otoguro, Yoshiaki Kamiyama, Shota Yamauchi, Atsushi Takemiya, Izumi C. Mori, Taishi Umezawa

2024.7

Florigen-producing cells express FPF1-LIKE PROTEIN 1 that accelerates flowering and stem growth in long days with sunlight red/far-red ratio in Arabidopsis

Hiroshi Takagi, Nayoung Lee, Andrew K. Hempton, Savita Purushwani, Michitaka Notaguchi, Kota Yamauchi, Kazumasa Shirai, Yaichi Kawakatsu, Susumu Uehara, William G. Albers, Benjamin L. R. Downing, Shogo Ito, Takamasa Suzuki, Takakazu Matsuura, Izumi C. Mori, Nobutaka Mitsuda, Daisuke Kurihara, Tomonao Matsushita, Young Hun Song, Yoshikatsu Sato, Mika Nomoto, Yasuomi Tada, Kousuke Hanada, Josh Cuperus, Christine Queitsch, Takato Imaizumi

2024.4

Publisher：Cold Spring Harbor Laboratory

Seasonal changes in spring induce flowering by expressing the florigen, FLOWERING LOCUS T (FT), in Arabidopsis. FT is expressed in unique phloem companion cells with unknown characteristics. The question of which genes are co-expressed with FT and whether they have roles in flowering remains elusive. Through tissue-specific translatome analysis, we discovered that under long-day conditions with the natural sunlight red/far-red ratio, the FT-producing cells express a gene encoding FPF1-LIKE PROTEIN 1 (FLP1). The master FT regulator, CONSTANS (CO), controls FLP1 expression, suggesting FLP1's involvement in the photoperiod pathway. FLP1 promotes early flowering independently of FT, is active in the shoot apical meristem, and induces the expression of SEPALLATA 3 (SEP3), a key E-class homeotic gene. Unlike FT, FLP1 facilitates inflorescence stem elongation. Our cumulative evidence indicates that FLP1 may act as a mobile signal. Thus, FLP1 orchestrates floral initiation together with FT and promotes inflorescence stem elongation during reproductive transitions.

DOI： 10.1101/2024.04.26.591289

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Possible roles of immunity-related response in modulating chlorosis induced by the silencing of chloroplast HSP90C in tobacco models

Okon Odiong Unung, Houssam Eddine Said Bensedira, Takakazu Matsuura, Izumi C. Mori, Yuta Shimomura, Takashi Yaeno, Hidetaka Kaya, Kappei Kobayashi

Journal of General Plant Pathology 2024

MHP1 and MHL generate odd-chain fatty acids from 2-hydroxy fatty acids in sphingolipids and are related to immunity in Arabidopsis thaliana

Marina Ushio, Toshiki Ishikawa, Takakazu Matsuura, Izumi C. Mori, Maki Kawai-Yamada, Yoichiro Fukao, Minoru Nagano

Plant Science 336 111840 - 111840 2023.11

The effect of exogenous dihydroxyacetone and methylglyoxal on growth, anthocyanin accumulation, and the glyoxalase system in Arabidopsis. International journal

Maoxiang Zhao, Toshiyuki Nakamura, Yoshimasa Nakamura, Shintaro Munemasa, Izumi C Mori, Yoshiyuki Murata

Bioscience, biotechnology, and biochemistry 2023.8

Language：English Publishing type：Research paper (scientific journal)

Dihydroxyacetone (DHA) occurs in wide-ranging organisms including plants and can undergo spontaneous conversion to methylglyoxal (MG). While the toxicity of MG to plants is well-known, the toxicity of DHA to plants remains to be elucidated. We investigated the effects of DHA and MG on Arabidopsis. Exogenous DHA at up to 10 m m did not affect the radicle emergence, the expansion of green cotyledons, the seedling growth, or the activity of glyoxalase II while DHA at 10 m m inhibited the root elongation and increased the activity of glyoxalase I. Exogenous MG at 1.0 m m inhibited these physiological responses and increased both activities. DHA at 10 m m increased the MG content in the roots. These results indicate that DHA is not so toxic as MG in Arabidopsis seeds and seedlings and suggest that the toxic effect of DHA at high concentrations is attributed to MG accumulation by the conversion to MG.

DOI： 10.1093/bbb/zbad109

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Zinc deficiency-induced defensin-like proteins are involved in the inhibition of root growth in Arabidopsis

Sachie Kimura, Aleksia Vaattovaara, Tomoya Ohshita, Kotomi Yokoyama, Kota Yoshida, Agnes Hui, Hidetaka Kaya, Ai Ozawa, Mami Kobayashi, Izumi C. Mori, Yoshiyuki Ogata, Yoko Ishino, Shigeo S. Sugano, Minoru Nagano, Yoichiro Fukao

PLANT JOURNAL 2023.6

Application of trehalose mitigates short-styled flowers in Solanaceous crops Reviewed

Izumi C. Mori, Takakazu Matsuura, Masahiro Otao, Lia Ooi, Yasuyo Nishimura, Takashi Hirayama

Journal of Agricultural and Food Chemistry 71 ( 14 ) 5476 - 5482 2023.4

Mechanosensory trichome cells evoke a mechanical stimuli–induced immune response in Arabidopsis thaliana

Mamoru Matsumura, Mika Nomoto, Tomotaka Itaya, Yuri Aratani, Mizuki Iwamoto, Takakazu Matsuura, Yuki Hayashi, Tsuyoshi Mori, Michael J. Skelly, Yoshiharu Y. Yamamoto, Toshinori Kinoshita, Izumi C. Mori, Takamasa Suzuki, Shigeyuki Betsuyaku, Steven H. Spoel, Masatsugu Toyota, Yasuomi Tada

Nature Communications 13 ( 1 ) 2022.12

Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC

<title>Abstract</title>Perception of pathogen-derived ligands by corresponding host receptors is a pivotal strategy in eukaryotic innate immunity. In plants, this is complemented by circadian anticipation of infection timing, promoting basal resistance even in the absence of pathogen threat. Here, we report that trichomes, hair-like structures on the epidermis, directly sense external mechanical forces, including raindrops, to anticipate pathogen infections in <italic>Arabidopsis thaliana</italic>. Exposure of leaf surfaces to mechanical stimuli initiates the concentric propagation of intercellular calcium waves away from trichomes to induce defence-related genes. Propagating calcium waves enable effective immunity against pathogenic microbes through the CALMODULIN-BINDING TRANSCRIPTION ACTIVATOR 3 (CAMTA3) and mitogen-activated protein kinases. We propose an early layer of plant immunity in which trichomes function as mechanosensory cells that detect potential risks.

DOI： 10.1038/s41467-022-28813-8

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Other Link： https://www.nature.com/articles/s41467-022-28813-8

Proteasome-associated ubiquitin ligase relays target plant hormone-specific transcriptional activators Reviewed

Zhishuo Wang, Beatriz Orosa-Puente, Mika Nomoto, Heather Grey, Thomas Potuschak, Takakazu Matsuura, Izumi C. Mori, Yasuomi Tada, Pascal Genschik, Steven H. Spoel

Science Advances 8 ( 42 ) 2022.10

Language：English Publishing type：Research paper (scientific journal) Publisher：American Association for the Advancement of Science (AAAS)

The ubiquitin-proteasome system is vital to hormone-mediated developmental and stress responses in plants. Ubiquitin ligases target hormone-specific transcriptional activators (TAs) for degradation, but how TAs are processed by proteasomes remains unknown. We report that in Arabidopsis , the salicylic acid– and ethylene-responsive TAs, NPR1 and EIN3, are relayed from pathway-specific ubiquitin ligases to proteasome-associated HECT-type UPL3/4 ligases. Activity and stability of NPR1 were regulated by sequential action of three ubiquitin ligases, including UPL3/4, while proteasome processing of EIN3 required physical handover between ethylene-responsive SCF ^EBF2 and UPL3/4 ligases. Consequently, UPL3/4 controlled extensive hormone-induced developmental and stress-responsive transcriptional programs. Thus, our findings identify unknown ubiquitin ligase relays that terminate with proteasome-associated HECT-type ligases, which may be a universal mechanism for processive degradation of proteasome-targeted TAs and other substrates.

DOI： 10.1126/sciadv.abn4466

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Functional roles of ALMT‐type anion channels in malate‐induced stomatal closure in tomato and Arabidopsis

Takayuki Sasaki, Michiyo Ariyoshi, Yoko Yamamoto, Izumi C. Mori

Plant, Cell and Environment 2022.6

Cytokinin increases vegetative growth period by suppressing florigen expression in rice and maize Reviewed

Lae‐Hyeon Cho, Jinmi Yoon, Win Tun, Gibeom Baek, Xin Peng, Woo‐Jong Hong, Izumi C. Mori, Yuko Hojo, Takakazu Matsuura, Sung‐Ryul Kim, Sun‐Tae Kim, Soon‐Wook Kwon, Ki‐Hong Jung, Jong‐Seong Jeon, Gynheung An

The Plant Journal 110 ( 6 ) 1619 - 1635 2022.4

Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley

SUMMARY

Increasing the vegetative growth period of crops can increase biomass and grain yield. In rice (Oryza sativa), the concentration of trans ‐zeatin, an active cytokinin, was high in the leaves during vegetative growth and decreased rapidly upon induction of florigen expression, suggesting that this hormone is involved in the regulation of the vegetative phase. To elucidate whether exogenous cytokinin application influences the length of the vegetative phase, we applied 6‐benzylaminopurine (BAP) to rice plants at various developmental stages. Our treatment delayed flowering time by 8–9 days when compared with mock‐treated rice plants, but only at the transition stage when the flowering signals were produced. Our observations also showed that flowering in the paddy field is delayed by thidiazuron, a stable chemical that mimics the effects of cytokinin. The transcript levels of florigen genes Heading date 3a (Hd3a) and Rice Flowering locus T1 (RFT1) were significantly reduced by the treatment, but the expression of Early heading date 1 (Ehd1), a gene found directly upstream of the florigen genes, was not altered. In maize (Zea mays), similarly, BAP treatment increased the vegetative phage by inhibiting the expression of ZCN8, an ortholog of Hd3a. We showed that cytokinin treatment induced the expression of two type‐A response regulators (OsRR1 and OsRR2) which interacted with Ehd1, a type‐B response regulator. We also observed that cytokinin did not affect flowering time in ehd1 knockout mutants. Our study indicates that cytokinin application increases the duration of the vegetative phase by delaying the expression of florigen genes in rice and maize by inhibiting Ehd1.

DOI： 10.1111/tpj.15760

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Other Link： https://onlinelibrary.wiley.com/doi/full-xml/10.1111/tpj.15760

Abscisic acid is required for exodermal suberization to form a barrier to radial oxygen loss in the adventitious roots of rice (Oryza sativa). International journal

Katsuhiro Shiono, Marina Yoshikawa, Tino Kreszies, Sumiyo Yamada, Yuko Hojo, Takakazu Matsuura, Izumi C Mori, Lukas Schreiber, Toshihito Yoshioka

The New phytologist 233 ( 2 ) 655 - 669 2022.1

Language：English Publishing type：Research paper (scientific journal)

To acclimate to waterlogged conditions, wetland plants form a barrier to radial oxygen loss (ROL) that can enhance oxygen transport to the root apex. We hypothesized that one or more hormones are involved in the induction of the barrier and searched for such hormones in rice. We previously identified 98 genes that were tissue-specifically upregulated during ROL barrier formation in rice. The RiceXPro database showed that most of these genes were highly enhanced by exogenous abscisic acid (ABA). We then examined the effect of ABA on ROL barrier formation by using an ABA biosynthesis inhibitor (fluridone, FLU), by applying exogenous ABA and by examining a mutant with a defective ABA biosynthesis gene (osaba1). FLU suppressed barrier formation in a stagnant solution that mimics waterlogged soil. Under aerobic conditions, rice does not naturally form a barrier, but 24 h of ABA treatment induced barrier formation. osaba1 did not form a barrier under stagnant conditions, but the application of ABA rescued the barrier. In parallel with ROL barrier formation, suberin lamellae formed in the exodermis. These findings strongly suggest that ABA is an inducer of suberin lamellae formation in the exodermis, resulting in an ROL barrier formation in rice.

DOI： 10.1111/nph.17751

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Cadmium uptake via apoplastic bypass flow in Oryza sativa Reviewed

Izumi C. Mori, Carlos Raul Arias-Barreiro, Lia Ooi, Nam-Hee Lee, Muhammad Abdus Sobahan, Yoshimasa Nakamura, Yoshihiko Hirai, Yoshiyuki Murata

Journal of Plant Research 134 ( 5 ) 1139 - 1148 2021.9

Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media {LLC}

It is known that rice roots take up cadmium (Cd) via the symplastic route mediated by membrane-bound mineral transporters. Here we provide evidence that apoplastic bypass flow is another Cd uptake route in rice. High concentrations of Cd rendered apoplastic bypass flow rate increased in rice seedlings. These concentrations of Cd compromised membrane integrity in the root meristem and transition zone. Polyethleneglycol and proline inhibited the Cd-induced apoplastic bypass flow and Cd transfer to the shoots. Loss-of-function mutant of the Cd uptake transporter, nramp5, showed Cd transport to the shoot comparable to the wild type. At a low Cd concentration, increased apoplastic bypass flow rate by NaCl stress resulted in an elevation of Cd transport to shoots both in the wildtype and nramp5. These observations indicate that apoplastic bypass flow in roots carries Cd transport leading to xylem loading of Cd in addition to the symplastic pathway mediated by mineral transporters under stressed conditions.

DOI： 10.1007/s10265-021-01319-y

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Salicylic Acid Acts Antagonistically to Plastid Retrograde Signaling by Promoting the Accumulation of Photosynthesis-associated Proteins in Arabidopsis Reviewed

Yoshihiro Hirosawa, Akari Tada, Takakazu Matsuura, Izumi C Mori, Yoshitoshi Ogura, Tetsuya Hayashi, Susumu Uehara, Yasuko Ito-Inaba, Takehito Inaba

Plant and Cell Physiology 2021.8

Language：English Publishing type：Research paper (scientific journal) Publisher：Oxford University Press ({OUP})

Plastids are involved in phytohormone metabolism as well as photosynthesis. However, the mechanism by which plastid retrograde signals and phytohormones cooperatively regulate plastid biogenesis remains elusive. Here, we investigated the effects of an inhibitor and a mutation that generate biogenic plastid signals on phytohormones, and vice versa. Inhibition of plastid biogenesis by norflurazon (NF)-treatment and the plastid protein import2 (ppi2) mutation caused a decrease in salicylic acid (SA) and jasmonic acid (JA). This effect can be attributed in part to the altered expression of genes involved in the biosynthesis and metabolism of SA and JA. However, SA-dependent induction of the PATHOGENESIS-RELATED1 gene was virtually unaffected in NF-treated plants and the ppi2 mutant. Instead, the level of chlorophyll in these plants was partially restored by exogenous application of SA. Consistent with this observation, the levels of some photosynthesis-associated proteins increased in the ppi2 and NF-treated plants in response to SA treatment. This regulation in true leaves seems to occur at post-transcriptional level, since SA treatment did not induce the expression of photosynthesis associated genes. In salicylic acid induction deficient 2 and lesions simulating disease resistance 1 mutants, endogenous SA regulates the accumulation of photosynthesis-associated proteins through transcriptional and post-transcriptional mechanisms. These data indicate that SA acts antagonistically to the inhibition of plastid biogenesis by promoting the accumulation of photosynthesis-associated proteins in Arabidopsis, suggesting a possible link between SA and biogenic plastid signaling.

DOI： 10.1093/pcp/pcab128

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Possible roles for phytohormones in controlling the stomatal behavior of Mesembryanthemum crystallinum during the salt-induced transition from C3 to crassulacean acid metabolism Reviewed International journal

Ayano Wakamatsu, Izumi C. Mori, Takakazu Matsuura, Yuichi Taniwaki, Ryotaro Ishii, Riichiro Yoshida

JOURNAL OF PLANT PHYSIOLOGY 262 153448 - 153448 2021.7

BdWRKY38 is required for the incompatible interaction of Brachypodium distachyon with the necrotrophic fungus Rhizoctonia solani Reviewed International journal

Yusuke Kouzai, Minami Shimizu, Komaki Inoue, Yukiko Uehara‐Yamaguchi, Kotaro Takahagi, Risa Nakayama, Takakazu Matsuura, Izumi C. Mori, Takashi Hirayama, Sobhy S. H. Abdelsalam, Yoshiteru Noutoshi, Keiichi Mochida

The Plant Journal 104 ( 4 ) 995 - 1008 2020.11

Language：English Publishing type：Research paper (scientific journal)

Rhizoctonia solani is a soil-borne necrotrophic fungus that causes sheath blight in grasses. The basal resistance of compatible interactions between R. solani and rice is known to be modulated by some WRKY transcription factors (TFs). However, genes and defense responses involved in incompatible interaction with R. solani remain unexplored, because no such interactions are known in any host plants. Recently, we demonstrated that Bd3-1, an accession of the model grass Brachypodium distachyon, is resistant to R. solani and, upon inoculation with the fungus, undergoes rapid induction of genes responsive to the phytohormone salicylic acid (SA) that encode the WRKY TFs BdWRKY38 and BdWRKY44. Here, we show that endogenous SA and these WRKY TFs positively regulate this accession-specific R. solani resistance. In contrast to a susceptible accession (Bd21), the infection process in the resistant accessions Bd3-1 and Tek-3 was suppressed at early stages before the development of fungal biomass and infection machinery. A comparative transcriptome analysis during pathogen infection revealed that putative WRKY-dependent defense genes were induced faster in the resistant accessions than in Bd21. A gene regulatory network (GRN) analysis based on the transcriptome dataset demonstrated that BdWRKY38 was a GRN hub connected to many target genes specifically in resistant accessions, whereas BdWRKY44 was shared in the GRNs of all three accessions. Moreover, overexpression of BdWRKY38 increased R. solani resistance in Bd21. Our findings demonstrate that these resistant accessions can activate an incompatible host response to R. solani, and BdWRKY38 regulates this response by mediating SA signaling.

DOI： 10.1111/tpj.14976

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Manganese Treatment Alleviates Zinc Deficiency Symptoms in Arabidopsis Seedlings. Reviewed

Sayuri Nakayama, Shigeo S Sugano, Haruna Hirokawa, Izumi C Mori, Hiroyuki Daimon, Sachie Kimura, Yoichiro Fukao

Plant & cell physiology 61 ( 10 ) 1711 - 1723 2020.10

Language：English Publishing type：Research paper (scientific journal)

Plant phenotypes caused by mineral deficiencies differ depending on growth conditions. We recently reported that the growth of Arabidopsis thaliana was severely inhibited on MGRL-based zinc (Zn)-deficient medium but not on Murashige-Skoog-based Zn-deficient medium. Here, we explored the underlying reason for the phenotypic differences in Arabidopsis grown on the different media. The root growth and chlorophyll contents reduced by Zn deficiency were rescued by the addition of extra manganese (Mn) during short-term growth (10 or 14 d). However, this treatment did not affect the growth recovery after long-term growth (38 d). To investigate the reason for plant recovery from Zn deficiency, we performed the RNA-seq analysis of the roots grown on the Zn-basal medium and the Zn-depleted medium with/without additional Mn. Principal component analysis of the RNA-seq data showed that the gene expression patterns of plants on the Zn-basal medium were similar to those on the Zn-depleted medium with Mn, whereas those on the Zn-depleted medium without Mn were different from the others. The expression of several transcription factors and reactive oxygen species (ROS)-related genes was upregulated in only plants on the Zn-depleted medium without Mn. Consistent with the gene expression data, ROS accumulation in the roots grown on this medium was higher than those grown in other conditions. These results suggest that plants accumulate ROS and reduce their biomass under undesirable growth conditions, such as Zn depletion. Taken together, this study shows that the addition of extra Mn to the Zn-depleted medium induces transcriptional changes in ROS-related genes, thereby alleviating short-term growth inhibition due to Zn deficiency.

DOI： 10.1093/pcp/pcaa094

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Low temperature modulates natural peel degreening in lemon fruit independently of endogenous ethylene. Reviewed International journal

Oscar W Mitalo, Takumi Otsuki, Rui Okada, Saeka Obitsu, Kanae Masuda, Yuko Hojo, Takakazu Matsuura, Izumi C Mori, Daigo Abe, William O Asiche, Takashi Akagi, Yasutaka Kubo, Koichiro Ushijima

Journal of experimental botany 71 ( 16 ) 4778 - 4796 2020.8

Language：English Publishing type：Research paper (scientific journal)

Peel degreening is an important aspect of fruit ripening in many citrus fruit, and previous studies have shown that it can be advanced by ethylene treatment or by low-temperature storage. However, the important regulators and pathways involved in natural peel degreening remain largely unknown. To determine how natural peel degreening is regulated in lemon fruit (Citrus limon), we studied transcriptome and physiochemical changes in the flavedo in response to ethylene treatment and low temperatures. Treatment with ethylene induced rapid peel degreening, which was strongly inhibited by the ethylene antagonist, 1-methylcyclopropene (1-MCP). Compared with 25 ºC, moderately low storage temperatures of 5-20 °C also triggered peel degreening. Surprisingly, repeated 1-MCP treatments failed to inhibit the peel degreening induced by low temperature. Transcriptome analysis revealed that low temperature and ethylene independently regulated genes associated with chlorophyll degradation, carotenoid metabolism, photosystem proteins, phytohormone biosynthesis and signalling, and transcription factors. Peel degreening of fruit on trees occurred in association with drops in ambient temperature, and it coincided with the differential expression of low temperature-regulated genes. In contrast, genes that were uniquely regulated by ethylene showed no significant expression changes during on-tree peel degreening. Based on these findings, we hypothesize that low temperature plays a prominent role in regulating natural peel degreening independently of ethylene in citrus fruit.

DOI： 10.1093/jxb/eraa206

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Interaction of intracellular hydrogen peroxide accumulation with nitric oxide production in abscisic acid signaling in guard cells. Reviewed International journal

Rayhanur Jannat, Takanori Senba, Daichi Muroyama, Misugi Uraji, Mohammad Anowar Hossain, Mohammad Muzahidul Islam, Yoshimasa Nakamura, Shintaro Munemasa, Izumi C Mori, Yoshiyuki Murata

Bioscience, biotechnology, and biochemistry 84 ( 7 ) 1418 - 1426 2020.7

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Informa {UK} Limited

Reactive oxygen species and nitric oxide (NO•) concomitantly play essential roles in guard cell signaling. Studies using catalase mutants have revealed that the inducible and constitutive elevations of intracellular hydrogen peroxide (H2O2) have different roles: only the inducible H2O2 production transduces the abscisic acid (ABA) signal leading stomatal closure. However, the involvement of inducible or constitutive NO• productions, if exists, in this process remains unknown. We studied H2O2 and NO• mobilization in guard cells of catalase mutants. Constitutive H2O2 level was higher in the mutants than that in wild type, but constitutive NO• level was not different among lines. Induced NO• and H2O2 levels elicited by ABA showed a high correlation with each other in all lines. Furthermore, NO• levels increased by exogenous H2O2 also showed a high correlation with stomatal aperture size. Our results demonstrate that ABA-induced intracellular H2O2 accumulation triggers NO• production leading stomatal closure. ABBREVIATIONS: ABA: abscisic acid; CAT: catalase; cGMP: cyclic guanosine monophosphate; DAF-2DA: 4,5-diaminofluorescein-2 diacetate; H2DCF-DA: 2',7'-dichlorodihydrofluorescein diacetate; MeJA: methyljasmonate; NOS: nitric oxide synthetase; NR: nitrate reductase; POX: peroxidase; ROS: reactive oxygen species; SNAP: S-nitroso-N-acetyl-DL-penicillamine; SNP: sodium nitroprusside; NOX: NADP(H) oxidase.

DOI： 10.1080/09168451.2020.1743168

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Application of the cellular oxidation biosensor to Toxicity Identification Evaluations for high-throughput toxicity assessment of river water Reviewed International journal

Lia Ooi, Keisuke Okazaki, Carlos R. Arias-Barreiro, Lee Yook Heng, Izumi C. Mori

Chemosphere 247 125933 - 125933 2020.5

Hormonal and transcriptional analyses of fruit development and ripening in different varieties of black pepper (Piper nigrum) Reviewed

Khew, C.-Y., Mori, I.C., Matsuura, T., Hirayama, T., Harikrishna, J.A., Lau, E.-T., Augustine Mercer, Z.J., Hwang, S.-S.

Journal of Plant Research 133 ( 1 ) 73 - 94 2020

Plant hormone profiling in developing seeds of common wheat (Triticum aestivum L.). Reviewed

Takakazu Matsuura, Izumi C Mori, Eiko Himi, Takashi Hirayama

Breeding science 69 ( 4 ) 601 - 610 2019.12

Reactive oxygen species and reactive carbonyl species constitute a feed-forward loop in auxin signaling for lateral root formation Reviewed International journal

Md Sanaullah Biswas, Hidehiro Fukaki, Izumi C. Mori, Kazuha Nakahara, Jun'ichi Mano

Plant Journal 100 ( 3 ) 536 - 548 2019.11

‘Passe Crassane’ pear fruit (Pyrus communis L.) ripening: Revisiting the role of low temperature via integrated physiological and transcriptome analysis Reviewed

Mitalo, O.W., Tosa, Y., Tokiwa, S., Kondo, Y., Azimi, A., Hojo, Y., Matsuura, T., Mori, I.C., Nakano, R., Akagi, T., Ushijima, K., Kubo, Y.

Postharvest Biology and Technology 158 110949 - 110949 2019

Disruption of ureide degradation affects plant growth and development during and after transition from vegetative to reproductive stages Reviewed International journal

Takagi H, Watanabe S, Tanaka S, Matsuura T, Mori IC, Hirayama T, Shimada H, Sakamoto A

BMC Plant Biology 18 ( 1 ) 287 - 287 2018.11

The Mechanism of SO₂ -Induced Stomatal Closure Differs from O₃ and CO₂ Responses and Is Mediated by Non-Apoptotic Cell Death in Guard Cells. Reviewed International journal

Ooi L, Matsuura T, Munemasa S, Murata Y, Katsuhara M, Hirayama T, Mori IC

Plant, cell & environment 42 ( 2 ) 437 - 447 2018.7

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley

Plants closing stomata in the presence of harmful gases is believed to be a stress avoidance mechanism. SO2 , one of the major airborne pollutants, has long been reported to induce stomatal closure, yet the mechanism remains unknown. Little is known about the stomatal response to airborne pollutants besides O3 . SLOW ANION CHANNEL-ASSOCIATED 1 (SLAC1) and OPEN STOMATA 1 (OST1) were identified as genes mediating O3 -induced closure. SLAC1 and OST1 are also known to mediate stomatal closure in response to CO2 , together with RESPIRATORY BURST OXIDASE HOMOLOGs (RBOHs). The overlaying roles of these genes in response to O3 and CO2 suggested that plants share their molecular regulators for airborne stimuli. Here, we investigated and compared stomatal closure event induced by a wide concentration range of SO2 in Arabidopsis through molecular genetic approaches. O3 - and CO2 -insensitive stomata mutants did not show significant differences from the wild type in stomatal sensitivity, guard cell viability, and chlorophyll content revealing that SO2 -induced closure is not regulated by the same molecular mechanisms as for O3 and CO2 . Nonapoptotic cell death is shown as the reason for SO2 -induced closure, which proposed the closure as a physicochemical process resulted from SO2 distress, instead of a biological protection mechanism.

DOI： 10.1111/pce.13406

PubMed

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A Cyclic Nucleotide-Gated Channel, HvCNGC2-3, Is Activated by the Co-Presence of Na⁺ and K⁺ and Permeable to Na⁺ and K⁺ Non-Selectively Reviewed International journal

Izumi Mori, Yuichi Nobukiyo, Yoshiki Nakahara, Mineo Shibasaka, Takuya Furuichi, Maki Katsuhara

Plants 7 ( 3 ) 61 - 61 2018.7

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：{MDPI} {AG}

Cyclic nucleotide-gated channels (CNGCs) have been postulated to contribute significantly in plant development and stress resistance. However, their electrophysiological properties remain poorly understood. Here, we characterized barley CNGC2-3 (HvCNGC2-3) by the two-electrode voltage-clamp technique in the Xenopus laevis oocyte heterologous expression system. Current was not observed in X. laevis oocytes injected with HvCNGC2-3 complementary RNA (cRNA) in a bathing solution containing either Na⁺ or K⁺ solely, even in the presence of 8-bromoadenosine 3',5'-cyclic monophosphate (8Br-cAMP) or 8-bromoguanosine 3',5'-cyclic monophosphate (8Br-cGMP). A weakly voltage-dependent slow hyperpolarization-activated ion current was observed in the co-presence of Na⁺ and K⁺ in the bathing solution and in the presence of 10 µM 8Br-cAMP, but not 8Br-cGMP. Permeability ratios of HvCNGC2-3 to K⁺, Na⁺ and Cl- were determined as 1:0.63:0.03 according to reversal-potential analyses. Amino-acid replacement of the unique ion-selective motif of HvCNGC2-3, AQGL, with the canonical motif, GQGL, resulted in the abolition of the current. This study reports a unique two-ion-dependent activation characteristic of the barley CNGC, HvCNGC2-3.

DOI： 10.3390/plants7030061

PubMed

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Circumnutation and distribution of phytohormones in Vigna angularis epicotyls Reviewed

Motoyuki Iida, Toshihiko Takano, Takakazu Matsuura, Izumi C. Mori, Shingo Takagi

Journal of Plant Research 131 ( 1 ) 165 - 178 2018.1

Salicylic acid-dependent immunity contributes to resistance against Rhizoctonia solani, a necrotrophic fungal agent of sheath blight, in rice and Brachypodium distachyon. Reviewed International journal

Kouzai Y, Kimura M, Watanabe M, Kusunoki K, Osaka D, Suzuki T, Matsui H, Yamamoto M, Ichinose Y, Toyoda K, Matsuura T, Mori IC, Hirayama T, Minami E, Noutoshi Y

New Phytologist 217 ( 2 ) 771 - 783 2018.1

Glutamate functions in stomatal closure in Arabidopsis and fava bean (vol 129, pg 39, 2016)

Riichiro Yoshida, Izumi C. Mori, Nobuto Kamizono, Yudai Shichiri, Tetsuo Shimatani, Fumika Miyata, Kenji Honda, Sumio Iwai

JOURNAL OF PLANT RESEARCH 130 ( 6 ) 1095 - 1095 2017.11

Allantoin, a stress-related purine metabolite, can activate jasmonate signaling in a MYC2-regulated and abscisic acid-dependent manner (vol 67, pg 2519, 2016) Reviewed

Hiroshi Takagi, Yasuhiro Ishiga, Shunsuke Watanabe, Tomokazu Konishi, Mayumi Egusa, Nobuhiro Akiyoshi, Takakazu Matsuura, Izumi C. Mori, Takashi Hirayama, Hironori Kaminaka, Hiroshi Shimada, Atsushi Sakamoto

JOURNAL OF EXPERIMENTAL BOTANY 68 ( 17 ) 5011 - 5011 2017.8

Global profiling of phytohormone dynamics during combined drought and pathogen stress in Arabidopsis thaliana reveals ABA and JA as major regulators Reviewed

Aarti Gupta, Hiroshi Hisano, Yuko Hojo, Takakazu Matsuura, Yoko Ikeda, Izumi C. Mori, Muthappa Senthil-Kumar

SCIENTIFIC REPORTS 7 ( 1 ) 4017 2017.6

Ectopic accumulation of linalool confers resistance to Xanthomonas citri subsp. citri in transgenic sweet orange plants Reviewed

Takehiko Shimada, Tomoko Endo, Ana Rodriguez, Hiroshi Fujii, Shingo Goto, Takakazu Matsuura, Yuko Hojo, Yoko Ikeda, Izumi C Mori, Takashi Fujikawa, Leandro Peña, Mitsuo Omura

Tree Physiology 37 ( 5 ) 654 - 664 2017.5

Phytohormones in red seaweeds: a technical review of methods for analysis and a consideration of genomic data Reviewed

Izumi C. Mori, Yoko Ikeda, Takakazu Matsuura, Takashi Hirayama, Koji Mikami

BOTANICA MARINA 60 ( 2 ) 153 - 170 2017.4

Effect of phytohormones on seedling vigor of rice under cold conditions

Yoshiyuki Sagehashi, Hiroshi Yasuda, Yuko Hojo, Takakazu Matsuura, Izumi C. Mori, Yutaka Sato

Japanese Journal of Crop Science 86 ( 4 ) 367 - 374 2017

MPK9 and MPK12 function in SA-induced stomatal closure in Arabidopsis thaliana Reviewed

Md. Atiqur Rahman Khokon, Mohammad Abdus Salam, Fabien Jammes, Wenxiu Ye, Mohammad Anowar Hossain, Eiji Okuma, Yoshimasa Nakamura, Izumi C. Mori, June M. Kwak, Yoshiyuki Murata

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 81 ( 7 ) 1394 - 1400 2017

Two Members of the Aluminum-Activated Malate Transporter Family, SlALMT4 and SlALMT5, are Expressed during Fruit Development, and the Overexpression of SlALMT5 Alters Organic Acid Contents in Seeds in Tomato (Solanum lycopersicum) Reviewed

Takayuki Sasaki, Yoshiyuki Tsuchiya, Michiyo Ariyoshi, Ryohei Nakano, Koichiro Ushijima, Yasutaka Kubo, Izumi C. Mori, Emi Higashiizumi, Ivan Galis, Yoko Yamamoto

PLANT AND CELL PHYSIOLOGY 57 ( 11 ) 2367 - 2379 2016.11

Involvement of OST1 Protein Kinase and PYR/PYL/RCAR Receptors in Methyl Jasmonate-Induced Stomatal Closure in Arabidopsis Guard Cells Reviewed

Ye Yin, Yuji Adachi, Yoshimasa Nakamura, Shintaro Munemasa, Izumi C. Mori, Yoshiyuki Murata

PLANT AND CELL PHYSIOLOGY 57 ( 8 ) 1779 - 1790 2016.8

Comprehensive quantification and genome survey reveal the presence of novel phytohormone action modes in red seaweeds Reviewed

Koji Mikami, Izumi C. Mori, Takakazu Matsuura, Yoko Ikeda, Mikiko Kojima, Hitoshi Sakakibara, Takashi Hirayama

JOURNAL OF APPLIED PHYCOLOGY 28 ( 4 ) 2539 - 2548 2016.8

Endogenous hormone levels affect the regeneration ability of callus derived from different organs in barley. Reviewed International journal

Hiroshi Hisano, Takakazu Matsuura, Izumi C Mori, Miki Yamane, Kazuhiro Sato

Plant Physiology and Biochemistry : PPB 99 66 - 72 2016.2

Glutamate functions in stomatal closure in Arabidopsis and fava bean Reviewed

Riichiro Yoshida, Izumi C. Mori, Nobuto Kamizono, Yudai Shichiri, Tetsuo Shimatani, Fumika Miyata, Kenji Honda, Sumio Iwai

JOURNAL OF PLANT RESEARCH 129 ( 1 ) 39 - 49 2016.1

Quantitative proteomic analysis of the response to zinc, magnesium, and calcium deficiency in specific cell types of Arabidopsis roots Reviewed

Fukao, Y., Kobayashi, M., Zargar, S.M., Kurata, R., Fukui, R., Mori, I.C., Ogata, Y.

Proteomes 4 ( 1 ) 1 - 1 2016

Allantoin, a stress-related purine metabolite, can activate jasmonate signaling in a MYC2-regulated and abscisic acid-dependent manner Reviewed

Takagi, Hiroshi, Ishiga, Yasuhiro, Watanabe, Shunsuke, Konishi, Tomokazu, Egusa, Mayumi, Akiyoshi, Nobuhiro, Matsuura, Takakazu, Mori, Izumi C., Hirayama, Takashi, Kaminaka, Hironori, Shimada, Hiroshi, Sakamoto, Atsushi

Journal of Experimental Botany 67 ( 8 ) 2016

Allyl isothiocyanate induces stomatal closure in Vicia faba Reviewed

Muhammad Abdus Sobahan, Nasima Akter, Eiji Okuma, Misugi Uraji, Wenxiu Ye, Izumi C. Mori, Yoshimasa Nakamura, Yoshiyuki Murata

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 79 ( 10 ) 1737 - 1742 2015.10

Two guard cell mitogen-activated protein kinases, MPK9 and MPK12, function in methyl jasmonate-induced stomatal closure in Arabidopsis thaliana Reviewed

Md. A. R. Khokon, M. A. Salam, F. Jammes, W. Ye, M. A. Hossain, M. Uraji, Y. Nakamura, I. C. Mori, J. M. Kwak, Y. Murata

PLANT BIOLOGY 17 ( 5 ) 946 - 952 2015.9

ABI1 regulates carbon/nitrogen-nutrient signal transduction independent of ABA biosynthesis and canonical ABA signalling pathways in Arabidopsis (vol 66, pg 2763, 2015) Reviewed

Yu Lu, Yuki Sasaki, Xingwen Li, Izumi C. Mori, Takakazu Matsuura, Takashi Hirayama, Takeo Sato, Junji Yamaguchi

JOURNAL OF EXPERIMENTAL BOTANY 66 ( 15 ) 4851 - 4851 2015.8

Open Stomata 1 Kinase is Essential for Yeast Elicitor-Induced Stomatal Closure in Arabidopsis Reviewed

Wenxiu Ye, Yuji Adachi, Shintaro Munemasa, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

PLANT AND CELL PHYSIOLOGY 56 ( 6 ) 1239 - 1248 2015.6

Ozone-Induced Rice Grain Yield Loss Is Triggered via a Change in Panicle Morphology That Is Controlled by ABERRANT PANICLE ORGANIZATION 1 Gene Reviewed

Keita Tsukahara, Hiroko Sawada, Yoshihisa Kohno, Takakazu Matsuura, Izumi C. Mori, Tomio Terao, Motohide Ioki, Masanori Tamaoki

PLOS ONE 10 ( 4 ) e0123308 2015.4

A High-Throughput Oxidative Stress Biosensor Based on Escherichia coli roGFP2 Cells Immobilized in a k-Carrageenan Matrix Reviewed

Lia Ooi, Lee Yook Heng, Izumi C. Mori

SENSORS 15 ( 2 ) 2354 - 2368 2015.2

Toxicity of tetramethylammonium hydroxide to aquatic organisms and its synergistic action with potassium iodide Reviewed

Izumi C. Mori, Carlos R. Arias-Barreiro, Apostolos Koutsaftis, Atsushi Ogo, Tomonori Kawano, Kazuharu Yoshizuka, Salmaan H. Inayat-Hussain, Isao Aoyama

CHEMOSPHERE 120 299 - 304 2015.2

ABI1 regulates carbon/nitrogen-nutrient signal transduction independent of ABA biosynthesis and canonical ABA signalling pathways in Arabidopsis Reviewed

Lu, Y., Sasaki, Y., Li, X., Mori, I.C., Matsuura, T., Hirayama, T., Sato, T., Yamaguchij, J.

Journal of Experimental Botany 66 ( 9 ) 2763 - 2771 2015

Identification of putative target genes of bZIP19, a transcription factor essential for Arabidopsis adaptation to Zn deficiency in roots Reviewed

Inaba, S., Kurata, R., Kobayashi, M., Yamagishi, Y., Mori, I., Ogata, Y., Fukao, Y.

Plant Journal 84 ( 2 ) 323 - 334 2015

Diverse Stomatal Signaling and the Signal Integration Mechanism

Yoshiyuki Murata, Izumi C. Mori, Shintaro Munemasa

ANNUAL REVIEW OF PLANT BIOLOGY, VOL 66 66 369 - 392 2015

Cyclic adenosine 5 '-diphosphoribose (cADPR) cyclic guanosine 3 ',5 '-monophosphate positively function in Ca2+ elevation in methyl jasmonate-induced stomatal closure, cADPR is required for methyl jasmonate-induced ROS accumulation NO production in guard cells Reviewed

M. A. Hossain, W. Ye, S. Munemasa, Y. Nakamura, I. C. Mori, Y. Murata

PLANT BIOLOGY 16 ( 6 ) 1140 - 1144 2014.11

Identification of quantitative trait loci for abscisic acid responsiveness in the D-genome of hexaploid wheat Reviewed

Julio C. M. Iehisa, Takakazu Matsuura, Izumi C. Mori, Hirokazu Yokota, Fuminori Kobayashi, Shigeo Takumi

JOURNAL OF PLANT PHYSIOLOGY 171 ( 10 ) 830 - 841 2014.6

CO2 Transport by PIP2 Aquaporins of Barley Reviewed

Izumi C. Mori, Jiye Rhee, Mineo Shibasaka, Shizuka Sasano, Toshiyuki Kaneko, Tomoaki Horie, Maki Katsuhara

PLANT AND CELL PHYSIOLOGY 55 ( 2 ) 251 - 257 2014.2

Identification of quantitative trait locus for abscisic acid responsiveness on chromosome 5A and association with dehydration tolerance in common wheat seedlings Reviewed

Julio C. M. Iehisa, Takakazu Matsuura, Izumi C. Mori, Shigeo Takumi

JOURNAL OF PLANT PHYSIOLOGY 171 ( 2 ) 25 - 34 2014.1

Regulation of reactive oxygen species-mediated abscisic acid signaling in guard cells and drought tolerance by glutathione Reviewed

Shintaro Munemasa, Daichi Muroyama, Hiroki Nagahashi, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

Frontiers in Plant Science 4 ( NOV ) 472 2013.11

Calcium-dependent protein Kinase CPK6 positively functions in induction by yeast elicitor of stomatal closure and inhibition by yeast elicitor of light-induced stomatal opening in Arabidopsis Reviewed

Wenxiu Ye, Daichi Muroyama, Shintaro Munemasa, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

Plant Physiology 163 ( 2 ) 591 - 599 2013.10

Identification of Cyclic GMP-Activated Nonselective Ca2+-Permeable Cation Channels and Associated CNGC5 and CNGC6 Genes in Arabidopsis Guard Cells Reviewed

Yong-Fei Wang, Shintaro Munemasa, Noriyuki Nishimura, Hui-Min Ren, Nadia Robert, Michelle Han, Irina Puzorjova, Hannes Kollist, Stephen Lee, Izumi Mori, Julian I. Schroeder

PLANT PHYSIOLOGY 163 ( 2 ) 578 - 590 2013.10

Difference in Abscisic Acid Perception Mechanisms between Closure Induction and Opening Inhibition of Stomata Reviewed

Ye Yin, Yuji Adachi, Wenxiu Ye, Maki Hayashi, Yoshimasa Nakamura, Toshinori Kinoshita, Izumi C. Mori, Yoshiyuki Murata

PLANT PHYSIOLOGY 163 ( 2 ) 600 - 610 2013.10

Endogenous abscisic acid is involved in methyl jasmonate-induced reactive oxygen species and nitric oxide production but not in cytosolic alkalization in Arabidopsis guard cells. Reviewed

Ye W, Hossain MA, Munemasa S, Nakamura Y, Mori IC, Murata Y

Journal of plant physiology 170 ( 13 ) 1212 - 1215 2013.9

Glucosinolate degradation products, isothiocyanates, nitriles, and thiocyanates, induce stomatal closure accompanied by peroxidase-mediated reactive oxygen species production in arabidopsis thaliana Reviewed

Mohammad Shakhawat Hossain, Wenxiu Ye, Mohammad Anowar Hossain, Eiji Okuma, Misugi Uraji, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

Bioscience, Biotechnology and Biochemistry 77 ( 5 ) 977 - 983 2013.6

Two guard cell-preferential MAPKs, MPK9 and MPK12, regulate YEL signalling in Arabidopsis guard cells Reviewed

M. A. Salam, F. Jammes, M. A. Hossain, W. Ye, Y. Nakamura, I. C. Mori, J. M. Kwak, Y. Murata

Plant Biology 15 ( 3 ) 436 - 442 2013.5

Negative Regulation of Methyl Jasmonate-Induced Stomatal Closure by Glutathione in Arabidopsis Reviewed

Nasima Akter, Eiji Okuma, Muhammad Abdus Sobahan, Misugi Uraji, Shintaro Munemasa, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

Journal of Plant Growth Regulation 32 ( 1 ) 208 - 215 2013.1

Response of rice to insect elicitors and the role of OsJAR1 in wound and herbivory-induced JA-ile accumulation Reviewed

Fukumoto, K., Alamgir, K.M., Yamashita, Y., Mori, I.C., Matsuura, H., Galis, I.

Journal of Integrative Plant Biology 55 ( 8 ) 775 - 784 2013

Neither endogenous abscisic acid nor endogenous jasmonate is involved in salicylic acid-, yeast elicitor-, or chitosan-induced stomatal closure in Arabidopsis thaliana. Reviewed

Issak M, Okuma E, Munemasa S, Nakamura Y, Mori IC, Murata Y

Bioscience, biotechnology, and biochemistry 77 ( 5 ) 1111 - 1113 2013

Effects of Depletion of Glutathione on Abscisic Acid- and Methyl Jasmonate-Induced Stomatal Closure in Arabidopsis thaliana Reviewed

Nasima Akter, Muhammad Abdus Sobahan, Misugi Uraji, Wenxiu Ye, Mohammad Anowar Hossain, Izumi C. Mori, Yoshimasa Nakamura, Yoshiyuki Murata

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 76 ( 11 ) 2032 - 2037 2012.11

MAP Kinases, MPK9 and MPK12, Regulate Chitosan-Induced Stomatal Closure Reviewed

Mohammad Abdus Salam, Fabien Jammes, Mohammad Anowar Hossain, Wenxiu Ye, Yoshimasa Nakamura, Izumi C. Mori, June M. Kwak, Yoshiyuki Murata

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 76 ( 9 ) 1785 - 1787 2012.9

Methylglyoxal inhibition of cytosolic ascorbate peroxidase from Nicotiana tabacum Reviewed

Md. Anamul Hoque, Misugi Uraji, Akiko Torii, Mst. Nasrin Akhter Banu, Izumi C. Mori, Yoshimasa Nakamura, Yoshiyuki Murata

JOURNAL OF BIOCHEMICAL AND MOLECULAR TOXICOLOGY 26 ( 8 ) 315 - 321 2012.8

Effects of Exogenous Proline and Glycinebetaine on the Salt Tolerance of Rice Cultivars Reviewed International journal

Muhammad Abdus Sobahan, Nasima Akter, Misao Ohno, Eiji Okuma, Yoshihiko Hirai, Izumi C. Mori, Yoshimasa Nakamura, Yoshiyuki Murata

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 76 ( 8 ) 1568 - 1570 2012.8

Catalases negatively regulate methyl jasrnonate signaling in guard cells Reviewed

Rayhanur Jannat, Misugi Uraji, Mohammad Anowar Hossain, Mohammad Muzahidul Islam, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

JOURNAL OF PLANT PHYSIOLOGY 169 ( 10 ) 1012 - 1016 2012.7

Cooperative Function of PLD delta and PLD alpha 1 in Abscisic Acid-Induced Stomatal Closure in Arabidopsis Reviewed

Misugi Uraji, Takeshi Katagiri, Eiji Okuma, Wenxiu Ye, Mohammad Anowar Hossain, Choji Masuda, Aya Miura, Yoshimasa Nakamura, Izumi C. Mori, Kazuo Shinozaki, Yoshiyuki Murata

PLANT PHYSIOLOGY 159 ( 1 ) 450 - 460 2012.5

Mechanisms of the Selenium Tolerance of the Arabidopsis thaliana Knockout Mutant of Sulfate Transporter SULTR1;2 Reviewed

Misao Ohno, Misugi Uraji, Yasuaki Shimoishi, Izumi C. Mori, Yoshimasa Nakamura, Yoshiyuki Murata

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 76 ( 5 ) 993 - 998 2012.5

FIA functions as an early signal component of abscisic acid signal cascade in Vicia faba guard cells Reviewed

Yusuke Sugiyama, Misugi Uraji, Megumi Watanabe-Sugimoto, Eiji Okuma, Shintaro Munemasa, Yasuaki Shimoishi, Yoshimasa Nakamura, Izumi C. Mori, Sumio Iwai, Yoshiyuki Murata

JOURNAL OF EXPERIMENTAL BOTANY 63 ( 3 ) 1357 - 1365 2012.2

Roles of intracellular hydrogen peroxide accumulation in abscisic acid signaling in Arabidopsis guard cells Reviewed

Jannat, R., Uraji, M., Morofuji, M., Islam, M.M., Bloom, R.E., Nakamura, Y., McClung, C.R., Schroeder, J.I., Mori, I.C., Murata, Y.

Journal of Plant Physiology 168 ( 16 ) 1919 - 1926 2011.11

Negative regulation of abscisic acid-induced stomatal closure by glutathione in Arabidopsis. Reviewed

Okuma E, Jahan MS, Munemasa S, Hossain MA, Muroyama D, Islam MM, Ogawa K, Watanabe-Sugimoto M, Nakamura Y, Shimoishi Y, Mori IC, Murata Y, Co-first authors

Journal of plant physiology 168 ( 17 ) 2048 - 2055 2011.11

K252a-sensitive protein kinases but not okadaic acid-sensitive protein phosphatases regulate methyl jasmonate-induced cytosolic Ca2+ oscillation in guard cells of Arabidopsis thaliana. Reviewed

Hossain MA, Munemasa S, Nakamura Y, Mori IC, Murata Y

Journal of plant physiology 168 ( 16 ) 1901 - 1908 2011.11

Allyl isothiocyanate (AITC) induces stomatal closure in Arabidopsis. Reviewed

Khokon MA, Jahan MS, Rahman T, Hossain MA, Muroyama D, Minami I, Munemasa S, Mori IC, Nakamura Y, Murata Y

Plant, cell & environment 34 ( 11 ) 1900 - 1906 2011.11

The roles of catalase2 in abscisic acid signaling in arabidopsis guard cells Reviewed

Rayhanur Jannat, Misugi Uraji, Miho Morofuji, Mohammad Anowar, Hossain, Mohammad Muzahidul Islam, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

Bioscience, Biotechnology and Biochemistry 75 ( 10 ) 2034 - 2036 2011.10

Viability of barley seeds after long-term exposure to outer side of international space station Reviewed

Manabu Sugimoto, Makoto Ishii, Izumi C. Mori, Shagimardanova Elena, Oleg A. Gusev, Makoto Kihara, Takehiro Hoki, Vladimir N. Sychev, Margarita A. Levinskikh, Natalia D. Novikova, Anatoly I. Grigoriev

Advances in Space Research 48 ( 6 ) 1155 - 1160 2011.9

Methyl jasmonate signaling and signal crosstalk between methyl jasmonate and abscisic acid in guard cells. Reviewed

Munemasa S, Mori IC, Murata Y

Plant signaling & behavior 6 ( 7 ) 939 - 941 2011.7

Involvement of endogenous abscisic acid in methyl jasmonate-induced stomatal closure in Arabidopsis. Reviewed

Hossain MA, Munemasa S, Uraji M, Nakamura Y, Mori IC, Murata Y

Plant physiology 156 ( 1 ) 430 - 438 2011.5

Involvement of extracellular oxidative burst in salicylic acid-induced stomatal closure in Arabidopsis. Reviewed

Khokon AR, Okuma E, Hossain MA, Munemasa S, Uraji M, Nakamura Y, Mori IC, Murata Y

Plant, cell & environment 34 ( 3 ) 434 - 443 2011.3

The Arabidopsis calcium-dependent protein kinase, CPK6, functions as a positive regulator of methyl jasmonate signaling in guard cells. Reviewed

Munemasa S, Hossain MA, Nakamura Y, Mori IC, Murata Y

Plant physiology 155 ( 1 ) 553 - 561 2011.1

ABA signaling in stomatal guard cells: Lessons from Commelina and Vicia Invited Reviewed

Mori, I.C., Murata, Y.

Journal of Plant Research 124 ( 4 ) 2011

The involvement of intracellular glutathione in methyl jasmonate signaling in Arabidopsis guard cells Reviewed

Nasima Akter, Muhammad Abdus Sobahan, Mohammad Anowar Hossain, Misugi Uraji, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

Bioscience, Biotechnology and Biochemistry 74 ( 12 ) 2504 - 2506 2010.12

The effects of methylglyoxal on glutathione s-transferase from nicotiana tabacum Reviewed

Md Anamul Hoque, Misugi Uraji, Mst Nasrin Akhter Banu, Izumi C. Mori, Yoshimasa Nakamura, Yoshiyuki Murata

Bioscience, Biotechnology and Biochemistry 74 ( 10 ) 2124 - 2126 2010.11

Yeast elicitor-induced stomatal closure and peroxidase-mediated ROS production in Arabidopsis. Reviewed

Khokon MA, Hossain MA, Munemasa S, Uraji M, Nakamura Y, Mori IC, Murata Y

Plant & cell physiology 51 ( 11 ) 1915 - 1921 2010.11

Cytosolic alkalization and cytosolic calcium oscillation in Arabidopsis guard cells response to ABA and MeJA. Reviewed

Islam MM, Hossain MA, Jannat R, Munemasa S, Nakamura Y, Mori IC, Murata Y

Plant & cell physiology 51 ( 10 ) 1721 - 1730 2010.10

A Bacterial Biosensor for Oxidative Stress Using the Constitutively Expressed Redox-Sensitive Protein roGFP2 Reviewed

Carlos R. Arias-Barreiro, Keisuke Okazaki, Apostolos Koutsaftis, Salmaan H. Inayat-Hussain, Akio Tani, Maki Katsuhara, Kazuhide Kimbara, Izumi C. Mori

SENSORS 10 ( 7 ) 6290 - 6306 2010.7

Ecotoxicological characterization of tannery wastewater in Dhaka, Bangladesh Reviewed

C. R. Arias-Barreiro, H. Nishizaki, K. Okubo, I. Aoyama, I. C. Mori

JOURNAL OF ENVIRONMENTAL BIOLOGY 31 ( 4 ) 471 - 475 2010.7

Closing Plant Stomata Requires a Homolog of an Aluminum-Activated Malate Transporter Reviewed

Takayuki Sasaki, Izumi C. Mori, Takuya Furuichi, Shintaro Munemasa, Kiminori Toyooka, Ken Matsuoka, Yoshiyuki Murata, Yoko Yamamoto

PLANT AND CELL PHYSIOLOGY 51 ( 3 ) 354 - 365 2010.3

Roles of AtTPC1, vacuolar two pore channel 1, in Arabidopsis stomatal closure. Reviewed

Islam MM, Munemasa S, Hossain MA, Nakamura Y, Mori IC, Murata Y

Plant & cell physiology 51 ( 2 ) 302 - 311 2010.2

Chitosan-induced stomatal closure accompanied by peroxidase-mediated reactive oxygen species production in Arabidopsis. Reviewed

Khokon MA, Uraji M, Munemasa S, Okuma E, Nakamura Y, Mori IC, Murata Y

Bioscience, biotechnology, and biochemistry 74 ( 11 ) 2313 - 2315 2010

Exogenous Proline and Glycinebetaine Suppress Apoplastic Flow to Reduce Na+ Uptake in Rice Seedlings Reviewed

Muhammad Abdus Sobahan, Carlos Raul Arias, Eiji Okuma, Yasuaki Shimoishi, Yoshimasa Nakamura, Yoshihiko Hirai, Izumi C. Mori, Yoshiyuki Murata

BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY 73 ( 9 ) 2037 - 2042 2009.9

Myrosinases, TGG1 and TGG2, Redundantly Function in ABA and MeJA Signaling in Arabidopsis Guard Cells Reviewed

Mohammad Mahbub Islam, Chiharu Tani, Megumi Watanabe-Sugimoto, Misugi Uraji, Md. Sarwar Jahan, Choji Masuda, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

PLANT AND CELL PHYSIOLOGY 50 ( 6 ) 1171 - 1175 2009.6

岡山大学資源生物科学研究所における屋上緑化による建物冷却効果

且原真木, 田中丸重美, 森泉, 谷明生, 宇都木繁子, 榎本敬, 米谷俊彦

環境制御 31 ( 1 ) 21 - 25 2009

Nitric oxide functions in both methyl jasmonate signaling and abscisic acid signaling in Arabidopsis guard cells Reviewed

Naoki Saito, Yoshimasa Nakamura, Izumi C. Mori, Yoshiyuki Murata

Plant Signaling and Behavior 4 ( 2 ) 119 - 120 2009

Biomarkers of green roof vegetation: anthocyanin and chlorophyll as stress marker pigments for plant stresses of roof environments Reviewed

Mori IC, Utsugi S, Tanakamaru S, Tani A, Enomoto T, Katsuhara M

Journal of Environment Engineering and Management 19 ( 1 ) 21 - 27 2009

Roles of RCN1, a Protein Phosphatase 2A A subunit, in Methyl Jasmonate Signaling in Arabidopsis Guard Cells

Saito Naoki, Nakamura Yoshimasa, Mori C. Izumi, Murata Yoshiyuki

Plant and Cell Physiology Supplement 2009 0451 - 0451 2009

Publisher：The Japanese Society of Plant Physiologists

In plants, metyl jasmonate (MeJA), which mediates various plant defense response, as well as abscisic acid (ABA) induces stomatal closure. It has been shown that there are various signaling factors in MeJA signaling in guard cells. RCN1, an Arabidopsis protein phosphatase 2A (PP2A) A subunit, is involved in auxin signaling in roots and ABA signaling in guard cells. Previously, our study suggested that RCN1 functions as a positive regulator in MeJA signaling in guard cells. RCN1 is required for MeJA regulation of reactive oxygen species production and inward-rectifying potassium ion channel currents in guard cells. <br> In order to gain further information about MeJA signaling in guard cells, we evaluated roles of RCN1 in MeJA regulation of nitric oxide production, calcium ion channel currents, and S-type anion channel currents in guard cells. Our results suggest a novel model of MeJA signaling in Arabidopsis guard cells.

DOI： 10.14841/jspp.2009.0.0451.0

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