期刊
BIOLOGIA PLANTARUM
卷 56, 期 4, 页码 767-770出版社
ACAD SCIENCES CZECH REPUBLIC, INST EXPERIMENTAL BOTANY
DOI: 10.1007/s10535-012-0108-0
关键词
ascorbate peroxidase; ascorbic acid; catalase; brassinosteroids; electrolyte leakage; glutathione; guaiacol peroxidase; ion balance; reactive oxygen species; Solanum melongena; superoxide dismutase
资金
- Natural Science Foundation of the Higher Education Institutions of Jiangsu Province [10KJB180010]
- National Natural Science Foundation of China [31101092]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Natural Science Foundation of Shanghai [ZR1426800]
- Shanghai Municipal Committee of Agriculture [2009-2-1]
The effects of exogenous 24-epibrassinolide (EBR) on the growth, oxidative damage, antioxidant system and ion contents in eggplant (Solanum melongena L.) seedlings under salt stress were investigated. Eggplant seedlings were exposed to 90 mM NaCl with 0, 0.025, 0.05, 0.10 and 0.20 mg dm(-3) EBR for 10 d. EBR, especially at concentration 0.05 mg dm(-3), alleviated growth suppression caused by NaCl stress, decreased electrolyte leakage, superoxide production and content of malondialdehyde and H2O2 in NaCl-treated plants. EBR also increased activities of superoxide dismutase, guaiacol peroxidase, catalase and ascorbate peroxidase and the contents of ascorbic acid and reduced glutathione. Furthermore, we also found that Na+, Cl- contents were decreased, K+, Ca2+ contents and K+/Na+, Ca2+/Na+ ratios were increased in the presence of EBR under salt stress.
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