Physiological effects of exogenous nitric oxide on Brassica juncea seedlings under NaCl stress
2011
Zeng, C.L.,Jianghan Univ., Wuhan (China). Coll. of Life Sciences | Liu, L.,Jianghan Univ., Wuhan (China). Coll. of Arts and Sciences | Wang, B.R.,Huazhong Agricultural Univ., Wuhan (China). Coll. of Plant Science and Technology | Wu, X.M.,Chinese Academy of Agricultural Sciences, Wuhan (China). Inst. of Oil Crop Research | Zhou, Y.,Jianghan Univ., Wuhan (China). Coll. of Life Sciences
This study was conducted to investigate the physiological effects of exogenous NO on Brassica juncea seedlings under salt stress. The plants were grown in Hogland nutrient solution for 15 d and treated with 150 mM NaCl, NO donor sodium nitropruside and NO scavenger methylene blue for 4 d. The NaCl stress increased superoxide dismutase, peroxidase and ascorbate peroxidase activities and malondialdehyde (MDA) and free proline contents, and decreased soluble protein content. However, the application of exogenous NO limited the production of MDA and free proline, while markedly promoted superoxide dismutase, peroxidase and ascorbate peroxidase activities.
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