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《Hubei Agricultural Sciences》 2010-07
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Effect of Exogenous Nitric Oxide on Sucrose Metabolism of Maize Seedlings Leaves under Salt Stress

LI Yun-he1,QIAN Shan-qin2,QAN Yi-ming2 (1.South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang 524091,Guangdong,China; 2.Department of Chemistry and Life Science, Liuzhou Normal College, Liuzhou 545004,Guangxi,China)  
To investigate the effect of exogenous nitric oxide (NO) on the variation of proline and sucrose in maize seedlings leaves under salt stress, 50 mmol/L NaCl was employed to simulate salt stress, sodium nitroprusside as nitric oxide (NO) donor and c-PTIO as the NO specific scavenger were used to treat the stressed maize seedlings.The results suggested that with the treatment of exogenous NO, in the seedlings leaves, the accumulation of proline, sucrose, and soluable total sugar were greatly promoted, the activities of SPS and SS were enhanced, while the relative water content was raised, while the relative electric conductivity was decreased, and the resistance to salt stress of maize was enhanced.But when NO scavenger was used, the salt stress was increased.
【Fund】: 农业部公益性行业(农业)科研专项(3-41);; 中国热带农业科学院南亚热带作物研究所资助项目(sscriqd200803)
【CateGory Index】: Q945.78
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