Ion homeostasis is essential for plant cell resistance to salt stress. Under salt stress, to avoid cellular damage and nutrient deficiency, plant cells need to maintain adequate K nutrition and a favorable K to Na ratio in the cytosol. Recent observations revealed that both nitric oxide (NO) and hydrogen peroxide (H2O2) act as signaling molecules to regulate K to Na ratio in calluses from Populus euphratica under salt stress. Evidence indicated that NO mediating H2O2 causes salt resistance via the action of plasma membrane H+-ATPase but that activity of plasma membrane NADPH oxidase is dependent on NO. Our study demonstrated the signaling transduction pathway. In this addendum, we proposed a testable hypothesis for NO function in regulation of H2O2 mediating salt resistance. ©2007 Landes Bioscience.
CITATION STYLE
Zhang, F., Wang, Y., & Wang, D. (2007). Role of nitric oxide and hydrogen peroxide during the salt resistance response. Plant Signaling and Behavior, 2(6), 473–474. https://doi.org/10.4161/psb.2.6.4466
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