| 外源水杨酸对水稻幼苗抗冷性的影响 |
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| 引用本文： | 徐芬芬,叶利民,付淑琴.外源水杨酸对水稻幼苗抗冷性的影响[J].广东农业科学,2010,37(1):18-20. |
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| 作者姓名： | 徐芬芬 叶利民 付淑琴 |
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| 作者单位： | 上饶师范学院生命科学系,江西,上饶,334001 |
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| 基金项目： | 上饶师范学院2008年科技项目(0813) |
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| 摘 要： | 以1.0、1.5、2.0、2.5、3.0、3.5 mmol/L水杨酸和蒸馏水处理一叶一心期的水稻幼苗,然后分别置于5℃和自然条件下生长,研究了水杨酸对水稻幼苗抗冷性的影响。结果表明:在5℃低温胁迫下,经1.5 mmol/L水杨酸处理的水稻幼苗的脯氨酸含量、叶绿素含量和SOD活性均高于仅用蒸馏水处理的对照,而丙二醛含量则低于对照,表明一定浓度的水杨酸可增强水稻幼苗的抗冷性,但外源水杨酸处理对冷胁迫下水稻幼苗生长存在"低促高抑"的效应。
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| 关 键 词： | 水稻 水杨酸 抗冷性 |
Effects of salicylic acid on resistance to cold stress of rice seedlings |
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| XU Fen-fen,YE Li-min,FU Shu-qin.Effects of salicylic acid on resistance to cold stress of rice seedlings[J].Guangdong Agricultural Sciences,2010,37(1):18-20. |
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| Authors: | XU Fen-fen YE Li-min FU Shu-qin |
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| Institution: | Department of Life Science;Shangrao Normal college;Shangrao 334001;China |
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| Abstract: | The seedlings of rice at one leave stage were treated with 0,1.0,1.5,2.0,2.5,3.0,3.5 mmol/L of salicylic acid(SA).The effects of salicylic acid on resistance of rice seedlings to cold stress were studied.The results showed that salicylic acid could enhance the resistance of rice to cold stress and the concentration of salicylic acid at 1.5 mmol/L showed the most effective.The salicylic acid increased the content of protine and chlorophyll as well as the activity of SOD,while the malodiadehyde content decrea... |
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| Keywords: | rice salicylic acid resistance to cold stress |
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