Effect of paclobutrazol on water stress amelioration through antioxidants and free radical scavenging enzymes in Arachis hypogaea L.
Effect of paclobutrazol on water stress amelioration through antioxidants and free radical scavenging enzymes in Arachis hypogaea L.
复制标题
DOI：
10.1016/j.colsurfb.2007.06.016
复制
发表时间：
2007-11-15
影响因子：
5.8
通讯作者：
Panneerselvam, R.
中科院分区：
文献类型：
--
作者：
Sankar, B.;Jaleel, C. Abdul;Panneerselvam, R.
对花生（Arachis hypogaea L.）水分亏缺胁迫下，小麦品种对多效唑（PBZ）处理的响应。以ICG 221和ICG 476两个花生品种为试验材料。与PBZ和干旱胁迫的个人治疗表现出增加，抗坏血酸，α-生育酚和还原型谷胱甘肽，超氧化物歧化酶（SOD），抗坏血酸过氧化物酶（APX）和过氧化氢酶（CAT）的活性。PBZ与干旱胁迫植物保持较高水平的抗氧化和清除酶。品种间和处理间差异显著。这些结果表明，PBZ的应用可以通过提高抗氧化水平和清除酶如SOD，APX和CAT的活性来最大限度地减少水分胁迫的不利影响。ICG 221似乎比ICG 476更耐受水分胁迫。(C)2007 Elsevier B. V.保留所有权利。
An investigation was carried out to find out the extent of changes occurred in groundnut (Arachis hypogaea L.) cultivars in response to paclobutrazol (PBZ) treatment under water deficit stress. Two groundnut cultivars namely ICG 221 and ICG 476 were used for the study. Individual treatment with PBZ and drought stress showed an increase in, ascorbic acid, alpha-tocopherol and reduced glutathione, superoxide dismutase (SOD), ascorbate peroxidase (APX) and catalase (CAT) activities. PBZ with drought stressed plants maintained higher levels of antioxidant and scavenging enzymes. Significant differences were observed between cultivars and treatments. These results suggests that the adverse effects of water stress can be minimized by the application of PBZ by increasing the antioxidant levels and activities of scavenging enzymes such as SOD, APX and CAT. The Cv. ICG 221 appears to be more tolerant to water stress than the ICG 476. (C) 2007 Elsevier B.V. All rights reserved.