Populus yunnanensis males adopt more efficient protective strategies than females to cope with excess zinc and acid rain
文献类型：期刊论文
| 作者 | Jiang, Hao1 ; Korpelainen, Helena2; Li, Chunyang1
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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