| Effects of brassinolide on antioxidant enzymes activities and antioxidants contents of Xanthoceras sorbifolia Bunde seedlings under drought stress |
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| DOI：10.7606/j.issn.1000-7601.2008.04.29 |
| Key Words: soil water stress antioxidant enzymes activities antioxidants contents brasinollide Xanthoceras sorbifolia Bunde |
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| Abstract: |
| Important antioxidant enzymes activities and antioxidants contents of Xanthoceras sorbifolia Bunde seedlings were detected and analyzed by dipping roots and spraying leaves of seedlings with different concentrations of brassinolide under controlled soil water condition．The results showed that after treatment of 0．05～0．4mg／L brassinolide the activities of SOD of Xanthoceras sorbifolia Bunde seedlings under modest drought stress （soil moisture11％～12％） and severe drought stress（soil moisture7％～8％） were higher more than those untreated ones but with no significant difference under modest stress．The activities of CAT POD and APX of Xanthoceras sorbifolia Bunde seedlings after treatment of 0．05～0．4mg／L brassinolide were significantly higher than those of the untreated ones under modest drought stress and severe drought stress．The GSH and ASA contents of Xanthoceras sorbifolia Bunde seedlings after treatment of 0．05～0．4mg／L brassinolide were significantly increased than the untreated ones． |