研究者詳細 - 且原　真木

論文 - 且原　真木

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Analysis of the effect of permeant solutes on the hydraulic resistance of the plasma membrane in cells of Chara corallina 査読

Masashi Tazawa, Randy Wayne, Maki Katsuhara

Protoplasma 2024年10月

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Springer Science and Business Media LLC

Abstract

In the cells of Chara corallina, permeant monohydric alcohols including methanol, ethanol and 1-propanol increased the hydraulic resistance of the membrane (Lp_m⁻¹). We found that the relative value of the hydraulic resistance (^rLp_m⁻¹) was linearly dependent on the concentration (C_s) of the alcohol. The relationship is expressed in the equation: ^rLp_m⁻¹ = ρ_mC_s + 1, where ρ_m is the hydraulic resistance modifier coefficient of the membrane. Ye et al. (2004) showed that membrane-permeant glycol ethers also increased Lp⁻¹. We used their data to estimate Lp_m⁻¹ and ^rLp_m⁻¹. The values of ^rLp_m⁻¹ fit the above relation we found for alcohols. When we plotted the ρ_m values of all the permeant alcohols and glycol ethers against their molecular weights (MW), we obtained a linear curve with a slope of 0.014 M⁻¹/MW and with a correlation coefficient of 0.99. We analyzed the influence of the permeant solutes on the relative hydraulic resistance of the membrane (^rLp_m⁻¹) as a function of the external (π₀) and internal (π_i) osmotic pressures. The analysis showed that the hydraulic resistance modifier coefficients (ρ_m) were linearly related to the MW of the permeant solutes with a slope of 0.012 M⁻¹/MW and with a correlation coefficient of 0.84. The linear relationship between the effects of permeating solutes on the hydraulic resistance modifier coefficient (ρ_m) and the MW can be explained in terms of the effect of the effective osmotic pressure on the hydraulic conductivity of water channels. The result of the analysis suggests that the osmotic pressure and not the size of the permeant solute as proposed by (Ye et al., J Exp Bot 55:449–461, 2004) is the decisive factor in a solute’s influence on hydraulic conductivity. Thus, characean water channels (aquaporins) respond to permeant solutes with essentially the same mechanism as to impermeant solutes.

DOI： 10.1007/s00709-024-02000-6

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その他リンク： https://link.springer.com/article/10.1007/s00709-024-02000-6/fulltext.html

In planta evidence that the HAK transporter OsHAK2 is involved in Na+ transport in rice. 国際誌

Shigeto Morita, Natsumi Tamba, Mineo Shibasaka, Shizuka Sasano, Taiju Kadoike, Yasuyo Urase, Masamitsu Maruyama, Aguri Fukuoka, Junta Yanai, Takehiro Masumura, Yasunari Ogihara, Shigeru Satoh, Kunisuke Tanaka, Maki Katsuhara, Hideki Nakayama

Bioscience, biotechnology, and biochemistry 87 ( 5 ) 482 - 490 2023年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

HAK family transporters primarily function as K+ transporters and play major roles in K+ uptake and translocation in plants, whereas several HAK transporters exhibit Na+ transport activity. OsHAK2, a rice HAK transporter, was shown to mediate Na+ transport in Escherichia coli in a previous study. In this study, we investigated whether OsHAK2 is involved in Na+ transport in the rice plant. Overexpression of OsHAK2 increased Na+ translocation from the roots to the shoots of transgenic rice. It also increased both root and whole-plant Na+ content, and enhanced shoot length under low Na+ and K+ conditions. Meanwhile, OsHAK2 overexpression increased salt sensitivity under a long-term salt stress condition, indicating that OsHAK2 is not involved in salt tolerance, unlike in the case of ZmHAK4 in maize. These results suggest that OsHAK2 is permeable to Na+ and contributes to shoot growth in rice plants under low Na+ and K+ conditions.

DOI： 10.1093/bbb/zbad020

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Distinct Functions of the Atypical Terminal Hydrophilic Domain of the HKT Transporter in the Liverwort Marchantia polymorpha. 査読国際共著国際誌

Shahin Imran, Masumi Oyama, Rie Horie, Natsuko I Kobayashi, Alex Costa, Ryosuke Kumano, Chiho Hirata, Sen Thi Huong Tran, Maki Katsuhara, Keitaro Tanoi, Takayuki Kohchi, Kimitsune Ishizaki, Tomoaki Horie

Plant & Cell Physiology 63 ( 6 ) 802 - 816 2022年6月

記述言語：英語掲載種別：研究論文（学術雑誌）

K+/Na+ homeostasis is important for land plants, particularly under salt stress. In this study, the structure and ion transport properties of the high-affinity K+ transporter (HKT) of the liverwort Marchantia polymorpha were investigated. Only one HKT gene, MpHKT1, was identified in the genome of M. polymorpha. Phylogenetic analysis of HKT proteins revealed that non-seed plants possess HKTs grouped into a clade independent of the other two clades including HKTs of angiosperms. A distinct long hydrophilic domain was found in the C-terminus of MpHKT1. Complementary DNA (cDNA) of truncated MpHKT1 (t-MpHKT1) encoding the MpHKT_Δ596-812 protein was used to examine the functions of the C-terminal domain. Both MpHKT1 transporters fused with enhanced green fluorescent protein at the N-terminus were localized to the plasma membrane when expressed in rice protoplasts. Two-electrode voltage clamp experiments using Xenopus laevis oocytes indicated that MpHKT1 mediated the transport of monovalent alkali cations with higher selectivity for Na+ and K+, but truncation of the C-terminal domain significantly reduced the transport activity with a decrease in the Na+ permeability. Overexpression of MpHKT1 or t-MpHKT1 in M. polymorpha conferred accumulation of higher Na+ levels and showed higher Na+ uptake rates, compared to those of wild-type plants; however, phenotypes with t-MpHKT1 were consistently weaker than those with MpHKT1. Together, these findings suggest that the hydrophilic C-terminal domain plays a unique role in the regulation of transport activity and ion selectivity of MpHKT1.

DOI： 10.1093/pcp/pcac044

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Calcium control of the hydraulic resistance in cells of Chara corallina 査読国際共著国際誌

Masashi Tazawa, Maki Katsuhara, Randy Wayne

Protoplasma 260 ( 1 ) 299 - 306 2022年6月

Identification and Characterization of Rice OsHKT1;3 Variants 査読国際誌

Shahin Imran, Yoshiyuki Tsuchiya, Sen Thi Huong Tran, Maki Katsuhara

Plants 10 ( 10 ) 2006 - 2006 2021年9月

Physiological Role of Aerobic Fermentation Constitutively Expressed in an Aluminum-Tolerant Cell Line of Tobacco (Nicotiana tabacum) 査読国際誌

Tsuchiya Y, Nakamura T, Izumi Y, Okazaki K, Shinano T, Kubo Y, Katsuhara M, Sasaki T, Yamamoto Y

Plant & Cell Physiology 62 ( 9 ) 1460 - 1477 2021年9月

Age dependence of the hydraulic resistances of the plasma membrane and the tonoplast (vacuolar membrane) in cells of Chara corallina 査読国際共著国際誌

Masashi Tazawa, Maki Katsuhara, Randy Wayne

Protoplasma 258 ( 4 ) 793 - 801 2021年7月

Erratum: Physiological role of aerobic fermentation constitutively expressed in an aluminum-tolerant cell line of tobacco (Nicotiana Tabacum) (Plant and Cell Physiology DOI: 10.1093/pcp/pcab098)

Yoshiyuki Tsuchiya, Takuji Nakamura, Yohei Izumi, Keiki Okazaki, Takuro Shinano, Yasutaka Kubo, Maki Katsuhara, Takayuki Sasaki, Yoko Yamamoto

Plant and Cell Physiology 62 ( 6 ) 1058 2021年6月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Oxford University Press

In the originally published version of this manuscript, the ethylene signaling pathway in Arabidopsis shown in the Figure 3 was incorrectly referred. The correct pathway is as follows: Ethylene -| ETR1 -&gt
CTR1 -| EIN2 -&gt
EIN3/EIL1 -&gt
ERFs. In addition, information was missing from the Figure 3 caption. An explanation of the subgroups of the ERF family shown in the figure (Group IX, VIII, VI, VII) has been added to the caption, which also necessitated two new references in the paper. The corrected caption is: Expression of the genes encoding transcription factors (EIL, ERFs) and chitinases (CHNs) associated with ethylene signaling pathway in SL and ALT301 under normal growth condition. Gene expression analysis was performed by real-time RT-PCR. Values are the mean±SE (n=3–5 from three to five independent experiments, respectively). Significant differences between SL and ALT301 are indicated with asterisks (*P &lt
0.05, **P &lt
0.01, Welch’s t-test). Ethylene signaling pathway in Arabidopsis (Kazan 2015) is shown (top). Group names of the ERF genes are indicated, which is based on Rushton et al. (2008) and Nakano et al. (2006). Note that some of the ERF genes have several synonyms (see the National Center for Biotechnology Information [NCBI] database using the gene accessions listed in Supplementary Table S6). Abbreviations: ETR1, Ethylene Response1
CTR1, Constitutive Triple Response1
EIN2, Ethylene Insensitive2
EIN3, Ethylene Insensitive3
EIL1, Ethylene Insensitive-Like Protein1
ERF, Ethylene Response Factor. The gene Tsi1 encodes Tobacco stress-induced gene1. The two new references are: Nakano, T., Suzuki, K., Fujimura, T. and Shinshi, H. (2006) Genome-wide analysis of the ERF gene family in Arabidopsis and rice. Plant Physiol. 140: 411–432. Rushton, P.J., Bokowiec, M.T., Han, S., Zhang, H., Brannock, J.F., Chen, X., et al. (2008) Tobacco transcription factors: novel insights into transcriptional regulation in the Solanaceae. Plant Physiol. 147: 280–295. These errors have been corrected.

DOI： 10.1093/pcp/pcab131

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Mechanisms Activating Latent Functions of PIP Aquaporin Water Channels via the Interaction between PIP1 and PIP2 Proteins 査読国際誌

Mineo Shibasaka, Tomoaki Horie, Maki Katsuhara

Plant & Cell Physiology 62 ( 1 ) 92 - 99 2021年3月

Accession difference in leaf photosynthesis, root hydraulic conductance and gene expression of root aquaporins under salt stress in barley seedlings 査読国際共著国際誌

Asuka Kodama, Tamaki Watanabe, Makoto Yamaguchi, Ryohei Narita, Maki Katsuhara, Kazuhiro Sato, Taiichiro Ookawa, Tadashi Hirasawa

Plant Production Science 24 ( 1 ) 73 - 82 2021年1月

A Survey of Barley PIP Aquaporin Ionic Conductance Reveals Ca2+-Sensitive HvPIP2;8 Na+ and K+ Conductance 査読国際共著国際誌

Sen Thi Huong Tran, Tomoaki Horie, Shahin Imran, Jiaen Qiu, Samantha McGaughey, Caitlin S. Byrt, Stephen D. Tyerman, Maki Katsuhara

International Journal of Molecular Sciences 21 ( 19 ) 7135 - 7135 2020年9月

Na+ Transporter SvHKT1;1 from a Halophytic Turf Grass Is Specifically Upregulated by High Na+ Concentration and Regulates Shoot Na+ Concentration 査読国際誌

Yuki Kawakami, Shahin Imran, Maki Katsuhara, Yuichi Tada

International Journal of Molecular Sciences 21 ( 17 ) 6100 - 6100 2020年8月

Ectopic expression of a rice plasma membrane intrinsic protein (OsPIP1;3) promotes plant growth and water uptake 査読国際共著国際誌

Siyu Liu, Tatsuya Fukumoto, Patrizia Gena, Peng Feng, Qi Sun, Qiang Li, Tadashi Matsumoto, Toshiyuki Kaneko, Hang Zhang, Yao Zhang, Shihua Zhong, Weizhong Zeng, Maki Katsuhara, Yoshichika Kitagawa, Aoxue Wang, Giuseppe Calamita, Xiaodong Ding

The Plant Journal 102 ( 4 ) 779 - 796 2020年5月

Expression and Ion Transport Activity of Rice OsHKT1;1 Variants 査読国際誌

Shahin Imran, Tomoaki Horie, Maki Katsuhara

Plants 9 ( 1 ) 16 - 16 2019年12月

Dynamics of the contents and distribution of ABA, auxins and aquaporins in developing caryopses of an ABA-deficient barley mutant and its parental cultivar 査読

Oksana A. Seldimirova, Guzel R. Kudoyarova, Maki Katsuhara, Ilshat R. Galin, Denis Yu. Zaitsev, Natalia N. Kruglova, Dmitry S. Veselov, Stanislav Yu. Veselov

Seed Science Research 29 ( 4 ) 261 - 269 2019年12月

The Mechanism of SO₂ -Induced Stomatal Closure Differs from O₃ and CO₂ Responses and Is Mediated by Non-Apoptotic Cell Death in Guard Cells. 査読国際誌

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

Plant, cell & environment 42 ( 2 ) 437 - 447 2019年2月

High-affinity K+ transporters from a halophyte, Sporobolus virginicus, mediate both K+ and Na+ transport in transgenic Arabidopsis, X. laevis oocytes, and yeast. 査読

Tada Y, Endo C, Katsuhara M, Horie T, Shibasaka M, Nakahara Y, Kurusu T

Plant & Cell Physiology 60 ( 1 ) 176 - 187 2019年1月

Functional screening of salt tolerance genes from a halophyte Sporobolus virginicus and transcriptomic and metabolomic analysis of salt tolerant plants expressing glycine-rich RNA-binding protein 査読

Yuichi Tada, Ryuichi Kawano, Shiho Komatsubara, Hideki Nishimura, Maki Katsuhara, Soichi Ozaki, Shin Terashima, Kentaro Yano, Chisato Endo, Muneo Sato, Mami Okamoto, Yuji Sawada, Masami Yokota Hirai, Takamitsu Kurusu

Plant Science 278 54 - 63 2019年1月

Energy costs of salinity tolerance in crop plants 招待査読

Stephen D. Tyerman, Rana Munns, Wieland Fricke, Borjana Arsova, Bronwyn J. Barkla, Jayakumar Bose, Helen Bramley, Caitlin Byrt, Zhonghua Chen, Timothy D. Colmer, Tracey Cuin, David A. Day, Kylie J. Foster, Matthew Gilliham, Sam W. Henderson, Tomoaki Horie, Colin L. D. Jenkins, Brent N. Kaiser, Maki Katsuhara, Darren Plett, Stanley J. Miklavcic, Stuart J. Roy, Francisco Rubio, Sergey Shabala, Megan Shelden, Kathleen Soole, Nicolas L. Taylor, Mark Tester, Michelle Watt, Stefanie Wege, Lars H. Wegner, Zhengyu Wen

New Phytologist 221 ( 1 ) 25 - 29 2019年1月

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 査読国際誌

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

Plants 7 ( 3 ) 61 - 61 2018年7月

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