Effect of drought and ABA on growth, photosynthesis and antioxidant system of Cotinus coggygria seedlings under two different light conditions

	Effect of drought and ABA on growth, photosynthesis and antioxidant system of Cotinus coggygria seedlings under two different light conditions
	Li, Yan ; Zhao, Hongxia ; Duan, Baoli ; Korpelainen, Helena ; Li, Chunyang
刊名	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
	2011
卷号	71 期号:1 页码:107-113
关键词	Abscisic acid Drought Growth Physiological traits Shade
ISSN号	0098-8472
通讯作者	Li, CY (reprint author), Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China.
产权排序	1
英文摘要	We exposed seedlings of Cotinus coggygria var. cinerea to drought and exogenous abscisic acid (ABA) under two different light conditions. Two watering regimes (well-watered and drought), two exogenous ABA applications (no ABA and with ABA) and two light regimes (full sunlight and shade) were employed. Compared with well-watered treatment, drought treatment significantly reduced the relative growth rate, relative water content (RWC), net photosynthesis rate (A) and transpiration (E), but increased chlorophyll a (chla), carbon isotope (delta(13)C), endogenous ABA, malondialdehyde (MDA) and hydrogen peroxide (H(2)O(2)) contents, and guaiacol peroxidase (POD) and catalase (CAT) activities. There was an apparent alleviation of drought effects by shade, as indicated by the lower relative growth rate, and chlorophyll, MDA and H(2)O(2) contents, and increases in indoleacetic acid (IAA) and reduced glutathione (GSH) contents. On the other hand, the exogenous ABA application under shade induced protective effects on drought-stressed seedlings, as visible in RWC, MDA, A, stomatal conductance (g(s)), E, delta(13)C, ABA and IAA values. In all, our results suggest that seedlings of C coggygria are more sensitive to drought under full-light than under shade. (C) 2010 Elsevier B.V. All rights reserved.
学科主题	Plant Sciences; Environmental Sciences & Ecology
收录类别	SCI
资助信息	National Natural Science Foundation of China[30930075]
语种	英语
WOS记录号	WOS:000287054200014
公开日期	2012-11-09
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/23455]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Li, Yan,Zhao, Hongxia,Duan, Baoli,et al. Effect of drought and ABA on growth, photosynthesis and antioxidant system of Cotinus coggygria seedlings under two different light conditions[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2011,71(1):107-113.
APA	Li, Yan,Zhao, Hongxia,Duan, Baoli,Korpelainen, Helena,&Li, Chunyang.(2011).Effect of drought and ABA on growth, photosynthesis and antioxidant system of Cotinus coggygria seedlings under two different light conditions.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,71(1),107-113.
MLA	Li, Yan,et al."Effect of drought and ABA on growth, photosynthesis and antioxidant system of Cotinus coggygria seedlings under two different light conditions".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 71.1(2011):107-113.