title: Role of nitric oxide and hydrogen peroxide during the salt resistance response.
abstract: 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 (H(2)O(2)) act as signaling molecules to regulate K to Na ratio in calluses from Populus euphratica under salt stress. Evidence indicated that NO mediating H(2)O(2) 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 H(2)O(2) mediating salt resistance.
authors.affiliation: Gansu Key Laboratory of Crop Genetic & Germplasm Enhancement; College of Life Sciences and Technology; Gansu Agricultural University; Lanzhou, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.forename: Yuping
authors.initials: Y
authors.lastname: Wang
authors.forename: Di
authors.initials: D
authors.lastname: Wang
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