scholarly journals Heterologous expression of an alligatorweed high-affinity potassium transporter gene enhances salinity tolerance inArabidopsis thaliana

2014 ◽  
Vol 101 (5) ◽  
pp. 840-850 ◽  
Author(s):  
Zhizhong Song ◽  
Shunying Yang ◽  
Hong Zhu ◽  
Man Jin ◽  
Yanhua Su
Keyword(s):  
Heterologous Expression ◽  
Salinity Tolerance ◽  
Transporter Gene ◽  
Potassium Transporter ◽  
High Affinity

scholarly journals Rapid Up-Regulation of HKT1, a High-Affinity Potassium Transporter Gene, in Roots of Barley and Wheat following Withdrawal of Potassium

1998 ◽  
Vol 118 (2) ◽  
pp. 651-659 ◽  
Author(s):  
Tie-Bang Wang ◽  
Walter Gassmann ◽  
Francisco Rubio ◽  
Julian I. Schroeder ◽  
Anthony D.M. Glass
Keyword(s):  
Transporter Gene ◽  
Potassium Transporter ◽  
High Affinity

scholarly journals In silico analysis of high affinity potassium transporter (HKT) isoforms in different plants

2014 ◽  
Vol 10 (1) ◽  
pp. 9 ◽  
Author(s):  
Mahbobeh Zamani Babgohari ◽  
Esmaeil Ebrahimie ◽  
Ali Niazi
Keyword(s):  
In Silico ◽  
In Silico Analysis ◽  
Potassium Transporter ◽  
High Affinity ◽  
Silico Analysis

scholarly journals Production and characterization of transgenic rice plants carrying a high-affinity nitrate transporter gene (OsNRT2.1)

2009 ◽  
Vol 59 (3) ◽  
pp. 237-243 ◽  
Author(s):  
Hisato Katayama ◽  
Mari Mori ◽  
Yoko Kawamura ◽  
Toshinori Tanaka ◽  
Masashi Mori ◽  
...  
Keyword(s):  
Transgenic Rice ◽  
Nitrate Transporter ◽  
Transporter Gene ◽  
Rice Plants ◽  
High Affinity ◽  
Transgenic Rice Plants ◽  
Nitrate Transporter Gene

scholarly journals OsHAK1, a High-Affinity Potassium Transporter, Positively Regulates Responses to Drought Stress in Rice

2017 ◽  
Vol 8 ◽  
Author(s):  
Guang Chen ◽  
Chaolei Liu ◽  
Zhenyu Gao ◽  
Yu Zhang ◽  
Hongzhen Jiang ◽  
...  
Keyword(s):  
Drought Stress ◽  
Potassium Transporter ◽  
High Affinity

Nanomolar Levels of Dimethylsulfoniopropionate, Dimethylsulfonioacetate, and Glycine Betaine Are Sufficient To Confer Osmoprotection to Escherichia coli

1999 ◽  
Vol 65 (8) ◽  
pp. 3304-3311 ◽  
Author(s):  
Anne Cosquer ◽  
Vianney Pichereau ◽  
Jean-Alain Pocard ◽  
Jacques Minet ◽  
Michel Cormier ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Salinity Tolerance ◽  
Glycine Betaine ◽  
Standard Laboratory ◽  
E Coli ◽  
High Affinity ◽  
Bacterial Cultures ◽  
Transport Studies ◽  
Ecological Implications ◽  
Substrate Concentrations

ABSTRACT We combined the use of low inoculation titers (300 ± 100 CFU/ml) and enumeration of culturable cells to measure the osmoprotective potentialities of dimethylsulfoniopropionate (DMSP), dimethylsulfonioacetate (DMSA), and glycine betaine (GB) for salt-stressed cultures of Escherichia coli. Dilute bacterial cultures were grown with osmoprotectant concentrations that encompassed the nanomolar levels of GB and DMSP found in nature and the millimolar levels of osmoprotectants used in standard laboratory osmoprotection bioassays. Nanomolar concentrations of DMSA, DMSP, and GB were sufficient to enhance the salinity tolerance of E. coli cells expressing only the ProU high-affinity general osmoporter. In contrast, nanomolar levels of osmoprotectants were ineffective with a mutant strain (GM50) that expressed only the low-affinity ProP osmoporter. Transport studies showed that DMSA and DMSP, like GB, were taken up via both ProU and ProP. Moreover, ProU displayed higher affinities for the three osmoprotectants than ProP displayed, and ProP, like ProU, displayed much higher affinities for GB and DMSA than for DMSP. Interestingly, ProP did not operate at substrate concentrations of 200 nM or less, whereas ProU operated at concentrations ranging from 1 nM to millimolar levels. Consequently,proU + strains of E. coli, but not the proP + strain GM50, could also scavenge nanomolar levels of GB, DMSA, and DMSP from oligotrophic seawater. The physiological and ecological implications of these observations are discussed.

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