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Article Addendum

Role of Nitric Oxide and Hydrogen Peroxide During the Salt Resistance Response

Feng Zhang, Yuping Wang and Di Wang

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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.

Authors

Feng Zhang

Gansu Agricultural University, Lanzhou, China

Yuping Wang

Gansu Agricultural University, Lanzhou, China

Di Wang

Gansu Agricultural University, Lanzhou, China

Purchase article for $19

Subscribe to this journal for $79/year