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作 者 ：蒋明义;杨文英;徐江;陈巧云

期 刊 ：作物学报 1994年 20卷 06期 页码：733-738

关键词：渗透胁迫；活性氧；膜脂过氧化；氧化伤害；水稻；

Keywords:Osmotic stress, Active oxygen, Lipid peroxidation, Oxidative injury, Rice,

摘 要 ：水稻幼苗在渗透胁迫下，随着胁迫强度的增加及时间的延长，O2和H2O2大量产生，膜脂过氧化加剧，细胞膜的完整性受到破坏，离子大量外泄；严重渗透胁迫亦使叶绿素——蛋白质复合体结合松弛，叶绿素含量明显降低。活性氧清除剂α-生育酚、抗坏血酸及甘露醇可阴抑渗透胁迫所诱导的丙二醛增生，减少叶绿素的氧化破坏。这些结果表

Abstract:The effects of osmotic stress induced by PEG 6000(-0.5Mpa, -0.8MPa) on the contents of superoxide radical (O2) and hydrogen peroxide (H2O2), membrane-lipid peroxidation, chlorophyll-protein binding degree and chlorophyll content, and permeability of plasma membrane in rice seedlings were studied. Th

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