渗透胁迫诱导水稻幼苗的氧化伤害

作物学报 ›› 1994, Vol. 20 ›› Issue (06): 733-738.

渗透胁迫诱导水稻幼苗的氧化伤害

蒋明义;杨文英;徐江;陈巧云

新疆八一农学院生物部，新疆乌鲁木齐，830052

收稿日期:1993-02-26 修回日期:1993-09-28 出版日期:1994-11-12 网络出版日期:1994-11-12
通讯作者: 蒋明义

Osmotic Stress-Induced Oxidative Injury of Rice Seedlings

Jiang Ming-yi; Yang Wen-ying; Xu Jiang; Chen Qiao-yun

Department of Biological Basic Sciences, August Ist Agricultural College of Xinjiang, Urumqi, 830052

Received:1993-02-26 Revised:1993-09-28 Published:1994-11-12 Published online:1994-11-12
Contact: Jiang Ming-yi

摘要/Abstract

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

关键词: 渗透胁迫，活性氧，膜脂过氧化，氧化伤害，水稻

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

Key words: Osmotic stress, Active oxygen, Lipid peroxidation, Oxidative injury, Rice

蒋明义;杨文英;徐江;陈巧云. 渗透胁迫诱导水稻幼苗的氧化伤害[J]. 作物学报, 1994, 20(06): 733-738.

Jiang Ming-yi; Yang Wen-ying; Xu Jiang; Chen Qiao-yun. Osmotic Stress-Induced Oxidative Injury of Rice Seedlings[J]. Acta Agron Sin, 1994, 20(06): 733-738.

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