| 多效唑对水稻叶片衰老的延缓效应和膜透性变化的影响 |
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| 引用本文： | 严景华,俞炳杲.多效唑对水稻叶片衰老的延缓效应和膜透性变化的影响[J].南京农业大学学报,1990(4). |
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| 作者姓名： | 严景华 俞炳杲 |
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| 作者单位： | 南京农业大学农学系，南京农业大学农学系 安徽农学院生化组 |
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| 摘 要： | 以庆莲16号水稻为试验材料,研究多效唑 MET 对连体叶片衰老的调节效应及其作用机理。试验结果表明:多效唑可延缓叶片叶绿素、蛋白质的降解速度,抑制蛋白水解酶的活性,增强 SOD 活性,防止丙二醛的积累和膜透性的增加。多效唑对水稻叶片衰老的延缓效应与它对活性氧代谢的调节作用有密切关系。
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| 关 键 词： | 多效唑 水稻叶片 衰老 脂质过氧化 |
EFFECT OF MULTIPLE-EFFECT TRIOZOLE(MET)ON THE RETARDING OF RICE LEAF SENESCENCE AND THE CHANGE OF MEMBRANE PERMEABILITY |
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| Yan Jinghua Yu Binggao.EFFECT OF MULTIPLE-EFFECT TRIOZOLE(MET)ON THE RETARDING OF RICE LEAF SENESCENCE AND THE CHANGE OF MEMBRANE PERMEABILITY[J].Journal of Nanjing Agricultural University,1990(4). |
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| Authors: | Yan Jinghua Yu Binggao |
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| Institution: | Department of Agronomy |
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| Abstract: | The effects of MET on attached rice leaf senescence were studied in this paper.Treat-ments with MET could strongly delay leaf senescence,decrease the degradation ofchlorophyll,protein and inhibit activity of protease in rice leaves.MET could stabilize the membrane structure of rice leaves in the process ofsenescence.The membrane permeability and the production of malondiadehyde(MDA)were significantly declined in the treated rice seedlings.In contrast there was a significant in-crease in the activity of superoxide dismutase(SOD)in the treated leaves.MET may delaythe senescence of attached rice leaves by inhibiting the lipid peroxidation as a result ofMET-induced increase of SOD activties. |
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| Keywords: | MET senescence rice leaf lipid peroxidation |
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