biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 55:345-348, 2011 | DOI: 10.1007/s10535-011-0051-5

Physiological effects of exogenous nitric oxide on Brassica juncea seedlings under NaCl stress

C. -L. Zeng1,2,*, L. Liu3, B. -R. Wang4, X. -M. Wu2, Y. Zhou1
1 College of Life Sciences, Jianghan University, Wuhan, P.R. China
2 Institute of Oil Crop Research, Chinese Academy of Agricultural Sciences, Wuhan, P.R. China
3 College of Arts and Sciences, Jianghan University, Wuhan, P.R. China
4 College of Plant Science and Technology, Huangzhong Agricultural University, Wuhan, P.R. China

The study was conducted to investigate the physiological effects of exogenous NO on potherb mustard (Brassica juncea Coss.) 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 (SNP) and NO scavenger methylene blue (MB-1) 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 SOD, POD and APX activity.

Keywords: antioxidative enzymes; malondialdehyde; methylene blue; proline; sodium nitropruside

Received: July 25, 2009; Accepted: January 5, 2010; Published: June 1, 2011  Show citation

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Zeng, C.-L., Liu, L., Wang, B.-R., Wu, X.-M., & Zhou, Y. (2011). Physiological effects of exogenous nitric oxide on Brassica juncea seedlings under NaCl stress. Biologia plantarum, 55(2), 345-348. doi: 10.1007/s10535-011-0051-5
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