| 棉花子叶衰老过程中的生理生化变化 |
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| 作者姓名： | 谢庆恩 王瑞芳 范作晓 王元格 沈法富 |
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| 作者单位： | 山东农业大学农学院 山东泰安271018(谢庆恩，王瑞芳，王元格，沈法富)，山东农业大学生命科学学院 山东泰安271018(范作晓) |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 以棉花子叶为材料,对子叶衰老过程中的叶绿素、可溶性蛋白含量、干物重,三种保护酶(超氧化物歧化酶,过氧化物酶,过氧化氢酶)活性,以及丙二醛含量的变化进行研究。发现子叶在出土后19d开始衰老;叶绿素含量变化在很大程度上与SOD和CAT活性变化存在正相关,与MDA的含量变化负相关,但与POD活性变化不存在相关性。
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| 关 键 词： | 棉花 子叶 衰老 酶活性 |
Physiological and Biochemical Changes of Cotyledon during Senescence in Cotton (Gossypium hirsutum. L) |
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| Authors: | Xie Qingen Wang Ruifang Fan Zuoxiao Wang Yuange Shen Fafu |
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| Institution: | 1 College of Agronomy, Shandong Agricultural University, Taian 271018; 2 College of Life Sciences, Shandong Agricultural University, Taian 271018 |
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| Abstract: | During the period of senescence of cotton cotyledons changes in chlorophyll, soluble protein, and dry material contents and in the activities of some antioxidant enzymes (superoxide dismutase, catalase and peroxidas) were analyzed, as well as malondialdehyde contents. The onset of senescence could be detected on the day 18. Significant changes in chlorophll content were, in most case, correlated with changes in activities of the superoxide dismutase and catalase,negative correlated with malondialdehyde contents, but the activities of peroxides were not follow that. |
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| Keywords: | Cotton (Gossypium hirsutum L) Cotyledon Senescence Enzyme activity |
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