安徽农业科学2011，Vol.39Issue(18)：10796-10798,3.
高温胁迫对黄连幼苗活性氧代谢及保护酶活性的影响
Effect of High Temperature Stream on Active Oxygen Metabolism and Activities of Protective Enzymes of Coptis chinensis Franch.Seedling
李品明 1杨丙贤 2孙玉芳 2宗学凤 2王三根2
作者信息
- 1. 重庆市药物种植研究所,重庆,408435
- 2. 西南大学农学与生物科技学院,重庆,400716
- 折叠
摘要
Abstract
[Objective] To study the effect of high temperature stress on active oxygen metabolism and activities protective enzymes of Coptis cheinensis Franch. Seedling. [Method] The correlative physiological and biochemical indices were determined when Coptis chinensis French, was under the high temperature (35 ±2)℃. [ Result] When suffering high temperature stress,Coptis chinensis Franch. Was significant higher in MDA in comparison with CK (P＜0.05). Under the high temperature stress,the scavenging rate of superoxide anion decreased,which was highly significant lower than that in CK (P ＜0.01), and the generating rate of hydroxyl radical was significant higher than that in CK (P < 0.05), but it did not vary as certain rule,the same as activity of POD. Moreover,activity of SOD in Coptis cheinensis Franch. Of different growth period decreased with the increase of stress duration. [Conclusion] Coptis cheinensis Franch. Had the ability that regulated the POD and SOD activities to reduce the injury degree produced by the high temperature stress,which,however,was reduced with the increase of high temperature stress duration.关键词
高温胁迫/黄连/MDA/活性氧/POD/SODKey words
High temperature stress/Coptis cheinensis Franch. /MDA/Active oxygen/POD/SOD分类
农业科技引用本文复制引用
李品明,杨丙贤,孙玉芳,宗学凤,王三根..高温胁迫对黄连幼苗活性氧代谢及保护酶活性的影响[J].安徽农业科学,2011,39(18):10796-10798,3.
