IMHE OpenIR  > 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, Lianghua1,2; Wang, Ling1; Chen, Fugui1; Korpelainen, Helena3; Li, Chunyang1
Corresponding AuthorLi, Chunyang
2013
Source PublicationECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN0147-6513
EISSN1090-2414
Volume97Pages:94-102
SubtypeArticle
AbstractWe 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.
KeywordCopper Stress Dioecy Phytoremediation Polyamine Poplar Putrescine
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.ecoenv.2013.07.009
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Toxicology
Indexed BySCI
WOS KeywordPOLYAMINE METABOLISM ; FREEZING TOLERANCE ; COLD-ACCLIMATION ; OXIDATIVE STRESS ; EXCESS COPPER ; ABSCISIC-ACID ; ACER-NEGUNDO ; RICE LEAVES ; SALT STRESS ; PLANTS
Language英语
Quartile3区
TOP
WOS SubjectEnvironmental Sciences ; Toxicology
WOS IDWOS:000325039400013
Funding OrganizationNational Basic Research Program of China(2012CB416901) ; National Key Technologies R & D Program of China(2011BAC09B05) ; China Postdoctoral Science Foundation(2012M521707) ; Youth Foundation of Education Department in Sichuan Province(13ZB0280) ; Application Foundation Project in Sichuan Province(2013JY0083)
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6550
Collection山地表生过程与生态调控重点实验室
Affiliation1.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
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
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.
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