Reduced Na+ and K+ permeability of K+ channel in plasma membrane isolated from roots of salt-tolerant mutant of wheat

被引：0

作者：

Guo, FQ ^{[1
]}

Tang, ZC ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Plant Physiol, Shanghai 200032, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 1999年 / 44卷 / 09期

关键词：

wheat; salt-tolerant mutant; plasma membrane; salt adaptation;

D O I：

10.1007/BF02885027

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The Na+ and K+ permeability of K+ channel in plasma membrane, isolated from roots of the salt-tolerant mutant of wheat, was lower than that of wild type in 100 mmol/L KCl and NaCl solution. The opening frequency of K+ channel of the mutant reduced more significantly than that of wild type in two kinds of solution mentioned above. It is assumed that the reduction of opening frequency mainly contributes to the Na+ and K+ permeability of K+ channel of the mutant. The electric conductance of single-channel of the mutant was similar to that of wild type and the main difference between them was exhibited as the opening frequency. Their K+/Ka(+) selectivity of K+ channel had no significant difference. The K+/Na+ selectivity of the mutant and wild type was 3.35 and 3.18 respectively.

引用

页码：816 / 821

页数：6

共 50 条

[31] Adaptation of Plants to Salt Stress: Characterization of Na+ and K+ Transporters and Role of CBL Gene Family in Regulating Salt Stress Response [J].

Ketehouli, Toi ;

Carther, Kue Foka Idrice ;

Noman, Muhammad ;

Wang, Fa-Wei ;

Li, Xiao-Wei ;

Li, Hai-Yan .

AGRONOMY-BASEL, 2019, 9 (11)

[32] Developmental changes in effect of cytokinin and gibberellin on shoot K+ and Na+ accumulation in salt-treated Sorghum plants [J].

Amzallag, GN .

PLANT BIOLOGY, 2001, 3 (04) :319-325

[33] The response of sweet sorghum cultivars to salt stress and accumulation of Na+, Cl- and K+ ions in relation to salinity [J].

Almodares, A. ;

Hadi, M. R. ;

Kholdebarin, B. ;

Samedani, B. ;

Kharazian, Z. Akhavan .

JOURNAL OF ENVIRONMENTAL BIOLOGY, 2014, 35 (04) :733-739

[34] Expression and Ca2+ dependency of plasma membrane K+ channels of tobacco suspension cells adapted to salt stress [J].

Kasukabe, Naoki ;

Watanabe-Sugimoto, Megumi ;

Matsuoka, Ken ;

Okuma, Eiji ;

Obi, Ichiro ;

Nakamura, Yoshimasa ;

Shimoishi, Yasuaki ;

Murata, Yoshiyuki ;

Kakutani, Tadaaki .

PLANT AND CELL PHYSIOLOGY, 2006, 47 (12) :1674-1677

[35] Involvement of cation channels and NH4 +-sensitive K+ transporters in Na+ uptake by cowpea roots under salinity [J].

Voigt, E. L. ;

Caitano, R. F. ;

Maia, J. M. ;

Ferreira-Silva, S. L. ;

De Macedo, C. E. C. ;

Silveira, J. A. G. .

BIOLOGIA PLANTARUM, 2009, 53 (04) :764-768

[36] YKC1 ENCODES THE DEPOLARIZATION-ACTIVATED K+ CHANNEL IN THE PLASMA-MEMBRANE OF YEAST [J].

ZHOU, XL ;

VAILLANT, B ;

LOUKIN, SH ;

KUNG, C ;

SAIMI, Y .

FEBS LETTERS, 1995, 373 (02) :170-176

[37] Pma1 is an alkali/alkaline earth metal cation ATPase that preferentially transports Na+ and K+ across the Mycobacterium smegmatis plasma membrane [J].

Ayala-Torres, Carlos ;

Novoa-Aponte, Lorena ;

Soto, Carlos Y. .

MICROBIOLOGICAL RESEARCH, 2015, 176 :1-6

[38] Expression of the extrinsic 23-kDa protein of photosystem II in response to salt stress is associated with the K+/Na+ discrimination locus Kna1 in wheat [J].

Gao M.-J. ;

Dvorak J. ;

Travis R. .

Plant Cell Reports, 2001, 20 (08) :774-778

[39] Hyperactive mutant of a wheat plasma membrane Na+/H+ antiporter improves the growth and salt tolerance of transgenic tobacco [J].

Zhou, Yang ;

Lai, Zesen ;

Yin, Xiaochang ;

Yu, Shan ;

Xu, Yuanyuan ;

Wang, Xiaoxiao ;

Cong, Xinli ;

Luo, Yuehua ;

Xu, Haixia ;

Jiang, Xingyu .

PLANT SCIENCE, 2016, 253 :176-186

[40] A Golgi-Localized Sodium/Hydrogen Exchanger Positively Regulates Salt Tolerance by Maintaining Higher K+/Na+ Ratio in Soybean [J].

Sun, Tianjie ;

Ma, Nan ;

Wang, Caiqing ;

Fan, Huifen ;

Wang, Mengxuan ;

Zhang, Jie ;

Cao, Jinfeng ;

Wang, Dongmei .

FRONTIERS IN PLANT SCIENCE, 2021, 12

← 1 2 3 4 5 →