| Effects of NaCl stress on activities of protective enzyme and physiological characteristics in sweet sorghum seedlings |
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| DOI：10.7606/j.issn.1000-7601.2008.06.26 |
| Key Words: sweet sorghum NaCl stress physiological characteristics protective enzyme |
| Author Name | Affiliation | | LU Jinyin | College of Life Sciences Northwest A ＆ F University,Yangling,Shaanxi 712100,China
State Key L aboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Water and Soil Conserv ation Chinese Academy of Sciences and Ministry of Water Resources,Yangling,Shaanxi 712100,China | | ZHAO Hui | College of Life Sciences Northwest A ＆ F University,Yangling,Shaanxi 712100,China | | FENG Wanjian | College of Life Sciences Northwest A ＆ F University,Yangling,Shaanxi 712100,China |
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| Abstract: |
| A study was made to investigate the effects of different concentrations of NaCl （100mmol／L and 200mmol／L ） on content of chlorophyll and other physiological characteristics in sweet sorghum seedlings．The results showed that under different concentrations of NaCl the content of proline（Pro） and malondialdehyde （MDA） increased continuously and the same as plasma membrane permeability of sweet sorghum seedlings． However the content of chlorophyll and soluble protein deceased gradually under NaCl treatment．The activities of superoxide dismutase （SOD） and catalase （CAT） in sweet sorghum leaves increased of which both reached the maximum under100mmol／L NaCl treatment．The activities of peroxidase （POD） was in a trend of increase first and then decrease．So the physiological characteristics of sweet sorghum seedlings were obviously affected by the two treatments of different NaCl concentration. |
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