Populus yunnanensis males adopt more efficient protective strategies than females to cope with excess zinc and acid rain

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

	Populus yunnanensis males adopt more efficient protective strategies than females to cope with excess zinc and acid rain
	Jiang, Hao1 ; Korpelainen, Helena 2; Li, Chunyang 1
刊名	CHEMOSPHERE
	2013-05-01
卷号	91 期号:8 页码:1213-1220
关键词	Acid rain Dioecy Photosynthetic capacity Sexual differences Zn stress
ISSN号	0045-6535
通讯作者	Li, CY(李春阳)
英文摘要	Dioecious plants show sexually different responses to environmental stresses. However, little is known about the dimorphic morphological and physiological responses to soil pollution. To investigate sex-related adaptive responses of Populus yunnanensis seedlings when exposed to excess zinc (Zn), acid rain (AR) and their combination (Zn+AR), we analyzed growth parameters, Zn accumulation and allocation, photosynthetic capacity and biochemical responses under different treatments. Results revealed that both excess Zn and Zn+AR have a negative effect on plant growth. Males have a greater potential than females to enrich Zn. The photosynthesis limitation could be attributable to a lower stomatal conductance, photosynthetic nitrogen use efficiency and nitrate reductase activity induced by Zn accumulation. Overproduction of reactive oxygen species was detected, and females showed higher levels of H2O2 and O-2(center dot-) than did males under excess Zn and Zn+AR. In addition, indicators related to plant injury showed expected increases and exhibited sexual differences. Males synthesized more biochemical molecules, such as proline and non-protein thiol, showing a stronger defense capacity in responses to either excess Zn or Zn+AR. Taking into account the Zn accumulation and the resulting injuries in plants, we suggest that excess Zn causes sex-related adaptive responses and males possess a more effective self-protection mechanism, Zn-stressed individuals suffering from AR did not show notable aggravation or alleviation when compared to damages induced by excess Zn alone. (C) 2013 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	EURAMERICANA CLONE I-214 ; SEX-SPECIFIC RESPONSES ; ADAPTIVE RESPONSES ; NITRIC-OXIDE ; AMINO-ACID ; PLANTS ; CATHAYANA ; STRESS ; PROLINE ; DROUGHT
收录类别	SCI
语种	英语
WOS记录号	WOS:000318835900019
公开日期	2013-06-24
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/5442]
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, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 2.Univ Helsinki, Dept Agr Sci, FI-00014 Helsinki, Finland
推荐引用方式 GB/T 7714	Jiang, Hao,Korpelainen, Helena,Li, Chunyang. Populus yunnanensis males adopt more efficient protective strategies than females to cope with excess zinc and acid rain[J]. CHEMOSPHERE,2013,91(8):1213-1220.
APA	Jiang, Hao,Korpelainen, Helena,&Li, Chunyang.(2013).Populus yunnanensis males adopt more efficient protective strategies than females to cope with excess zinc and acid rain.CHEMOSPHERE,91(8),1213-1220.
MLA	Jiang, Hao,et al."Populus yunnanensis males adopt more efficient protective strategies than females to cope with excess zinc and acid rain".CHEMOSPHERE 91.8(2013):1213-1220.