Dual role of abscisic acid on antioxidative defense in grass pea seedling (Lathyrus sativus L.)
Xiong, YC; Xing GM(邢更妹); Xing, GM; Gong, CM; Li, FM; Wang, SM; Li, ZX; Wang, YF
刊名PAKISTAN JOURNAL OF BOTANY
2006
卷号38期号:4页码:999-1014
学科分类Plant Sciences
通讯作者Lanzhou Univ, Sch Life Sci, Key Lab Arid Agroecol, Lanzhou 730000, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; Shihezi Univ, Key Lab Oasis Ecoagr Xingjiang Bintuan, Shihezi 832000, Peoples R China
文章类型Article
英文摘要The effects of exogenous abscissic acid (ABA) application on the antioxidant defenses were investigated in grass pea (Lathyrus sativus L.) seedlings. Four treatment combinations of ABA (1 x 10(-3) nM ABA) and PEG (10% polyethylene glycol, PEG 6000) were designed to evaluate their short-term (48 h) effect: (1) Well-watered group (Control group 1), (2) PEG treatment, (3) ABA treatment, and (4) PEG + ABA treatment. In addition, 2 other treatments were used to evaluate the long-term (15 d) effect of ABA: well-watered group (Control group 2) and ABA treatment. Time-course analyses of ABA content, the production of malondialdehyde (NIDA) and H2O2, and the activities of superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) and peroxidase (POD) in water-stressed leaves showed that a significant increase in ABA content preceded that of MDA and H2O2 in long term experiment, which was followed by a substantial increase in the activities of four antioxidant enzymes. Under the short-term drought stress, ABA application promoted the activities of antioxidant enzymes, and reduced the accumulation of MDA and H2O2 significantly. On the contrary, long term application of exogenous ABA increase the generation of MDA and H2O2 significantly. It could be argued that during a successive application of exogenous ABA, ABA played a dual role by which the beneficial role in the initial stage shifted to a detrimental one under prolonged treatment in up-regulating protective defense strategies in plants.
类目[WOS]Plant Sciences
研究领域[WOS]Plant Sciences
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语种英语
WOS记录号WOS:000244728800013
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238873
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
中国科学院高能物理研究所_多学科研究中心
中国科学院高能物理研究所_核技术应用研究中心
作者单位中国科学院高能物理研究所
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Xiong, YC,Xing GM,Xing, GM,et al. Dual role of abscisic acid on antioxidative defense in grass pea seedling (Lathyrus sativus L.)[J]. PAKISTAN JOURNAL OF BOTANY,2006,38(4):999-1014.
APA Xiong, YC.,邢更妹.,Xing, GM.,Gong, CM.,Li, FM.,...&Wang, YF.(2006).Dual role of abscisic acid on antioxidative defense in grass pea seedling (Lathyrus sativus L.).PAKISTAN JOURNAL OF BOTANY,38(4),999-1014.
MLA Xiong, YC,et al."Dual role of abscisic acid on antioxidative defense in grass pea seedling (Lathyrus sativus L.)".PAKISTAN JOURNAL OF BOTANY 38.4(2006):999-1014.
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