Nitrogen deposition limits photosynthetic response to elevated CO2 differentially in a dioecious species
文献类型：期刊论文
| 作者 | Zhao, Hongxia ; Xu, Xiao ; Zhang, Yuanbin ; Korpelainen, Helena ; Li, Chunyang |
| 刊名 | OECOLOGIA
 |
| 出版日期 | 2011 |
| 卷号 | 165期号:1页码:41-54 |
| 关键词 | Sex-specific responses Growth traits Photosynthetic capacities CO2 enrichment Nitrogen deposition Carbohydrate accumulation |
| ISSN号 | 0029-8549 |
| 产权排序 | 1 |
| 通讯作者 | Li, CY (reprint author), Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China. |
| 英文摘要 | Sexual dimorphisms of dioecious plants are important in controlling and maintaining sex ratios under changing climate environments. Yet, little is known about sex-specific responses to elevated CO2 with soil nitrogen (N) deposition. To investigate sex-related physiological and biochemical responses to elevated CO2 with N deposition, Populus cathayana Rehd. was employed as a model species. The cuttings were subjected to two CO2 regimes (350 and 700 mu mol mol(-1)) with two N levels (0 and 5 g N m(-2) year(-1)). Our results showed that elevated CO2 and N deposition separately increased the total number of leaves, leaf area (LA), leaf mass, net photosynthetic rate (P (n)), light saturated photosynthetic rate (P (max)), chlorophyll a (Chl a), and chlorophyll a to chlorophyll b ratio (Chl a/b) in both males and females of P. cathayana. However, the effects on LA, leaf mass, P (n), P (max), Chl a and Chl a/b were weakened under the combined treatment of elevated CO2 and N deposition. Males had higher leaf mass, P (n), P (max), apparent quantum yield (I broken vertical bar), carboxylation efficiency (CE), Chl a, Chl a/b, leaf N, and root carbon to N ratio (C/N) than did females under elevated CO2 with N deposition. In contrast to males, females had significantly higher levels of soluble sugars in leaves and greater starch accumulation in roots and stems under the same condition. The results of the present work imply that P. cathayana females are more responsive and suffer from greater negative effects on growth and photosynthetic capacity than do males when grown under elevated CO2 with soil N deposition. |
| 学科主题 | Environmental Sciences & Ecology |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China[30771721, 30930075]; Chinese Academy of Sciences[KSCX2-YW-Z-1019] |
| 语种 | 英语 |
| WOS记录号 | WOS:000285782600005 |
| 公开日期 | 2012-11-09 |
| 源URL | [http://210.75.237.14/handle/351003/23464]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Zhao, Hongxia,Xu, Xiao,Zhang, Yuanbin,et al. Nitrogen deposition limits photosynthetic response to elevated CO2 differentially in a dioecious species[J]. OECOLOGIA,2011,165(1):41-54. |
| APA | Zhao, Hongxia,Xu, Xiao,Zhang, Yuanbin,Korpelainen, Helena,&Li, Chunyang.(2011).Nitrogen deposition limits photosynthetic response to elevated CO2 differentially in a dioecious species.OECOLOGIA,165(1),41-54. |
| MLA | Zhao, Hongxia,et al."Nitrogen deposition limits photosynthetic response to elevated CO2 differentially in a dioecious species".OECOLOGIA 165.1(2011):41-54. |
入库方式： OAI收割
来源：成都生物研究所
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