The effects of exogenous putrescine on sex-specific responses of Populus cathayana to copper stress

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	The effects of exogenous putrescine on sex-specific responses of Populus cathayana to copper stress
	Chen, Lianghua 1,2; Wang, Ling 1; Chen, Fugui 1; Korpelainen, Helena 3; Li, Chunyang1
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2013-11-01
卷号	97 页码:94-102
关键词	Copper stress Dioecy Phytoremediation Polyamine Poplar Putrescine
ISSN号	0147-6513
通讯作者	Li, Chunyang
合作状况	国际
英文摘要	We used the dioecious tree, Populus cathayana, as a model species to study plants' physiological and biochemical responses to copper (Cu) stress, exogenous putrescine (Put) treatment and their interaction. Although males accumulated higher Cu concentrations in leaves than did females under Cu stress, they did not suffer more damage than females, as reflected by changes in gas exchange, pigment contents, membrane lipid peroxidation (thiobarbituric acid reactive substances, TBARS) and protein oxidation (carbonyl). Higher Cu tolerance of males was correlated with a higher H2O2 scavenging ability and proline responses, and a better maintenance of non-protein thiols (NP-SHs) and spermine (Spm) contents. We also discovered that mitigation effects of exogenous Put on Cu stress occurred, as visible as a recovery of the total chlorophyll content, and lower TBARS and carbonyl under interaction treatment when compared to Cu stress alone. Exogenous Put decreased the Cu concentration in leaves of both sexes, but to different degrees. Such effects of exogenous Put suggested that Put may play important roles in the stabilization of membrane integrity and protein structures, and it may modulate the uptake and transportation of Cu. Our results indicated that (1) males are more tolerant to Cu stress than females; (2) Put could mitigate Cu toxicity in P. cathayana, but to a different degree in males and females; (3) males are better candidates than females for Cu extraction and phytoremediation. (C) 2013 Elsevier Inc. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences ; Toxicology
研究领域[WOS]	Environmental Sciences & Ecology ; Toxicology
关键词[WOS]	POLYAMINE METABOLISM ; FREEZING TOLERANCE ; COLD-ACCLIMATION ; OXIDATIVE STRESS ; EXCESS COPPER ; ABSCISIC-ACID ; ACER-NEGUNDO ; RICE LEAVES ; SALT STRESS ; PLANTS
收录类别	SCI
语种	英语
WOS记录号	WOS:000325039400013
公开日期	2013-11-30
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/6550]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Sichuan Agr Univ, Inst Ecol Forestry, Chengdu 611130, Peoples R China 3.Univ Helsinki, Dept Agr Sci, FI-00014 Helsinki, Finland
推荐引用方式 GB/T 7714	Chen, Lianghua,Wang, Ling,Chen, Fugui,et al. The effects of exogenous putrescine on sex-specific responses of Populus cathayana to copper stress[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2013,97:94-102.
APA	Chen, Lianghua,Wang, Ling,Chen, Fugui,Korpelainen, Helena,&Li, Chunyang.(2013).The effects of exogenous putrescine on sex-specific responses of Populus cathayana to copper stress.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,97,94-102.
MLA	Chen, Lianghua,et al."The effects of exogenous putrescine on sex-specific responses of Populus cathayana to copper stress".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 97(2013):94-102.