Role of nitric oxide under saline stress: implications on proline metabolism
2008
Lopez-Carrion, A.I.,University of Granada (Spain). Dept. of Plant Physiology | Castellano, R.,University of Granada (Spain). Dept. of Plant Physiology | Rosales, M.A.,University of Granada (Spain). Dept. of Plant Physiology | Ruiz, J.M.,University of Granada (Spain). Dept. of Plant Physiology | Romero, L.,University of Granada (Spain). Dept. of Plant Physiology
The present work is focused on the possible relationship between nitric oxide and the induction of proline in response to salt stress. Brassica rapa plants were subjected to 100 mM NaCl and sodium nitroprusside (SNP; the donor of NO) at different concentrations. The plants showed lower NaCl-induced oxidative stress and proline accumulation after application of low concentrations of SNP together with the NaCl treatment. The reduction in the proline content was related to increased activity of proline dehydrogenase. These results suggest that the NO could be capable of mitigating damage associated with salt stress.
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