Sex-related adaptive responses of Populus cathayana to photoperiod transitions
文献类型：期刊论文
| 作者 | Zhao, HX; Li, Y; Duan, BL; Korpelainen, H; Li, CY; Li, CY, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China. |
| 刊名 | PLANT CELL AND ENVIRONMENT
 |
| 出版日期 | 2009 |
| 卷号 | 32期号:10页码:1401_1411 |
| 关键词 | Leaf Senescence Lipid Peroxidation Photoperiod Adaptation Phytohormones Sex-specific Responses Ultrastructure |
| ISSN号 | 0140-7791 |
| 产权排序 | 1 |
| 英文摘要 | Populus cathayana Rehd., a dioecious tree species, occupies a wide range of habitats in southwest China. Both males and females were grown under two regimes of photoperiod, from mid-length to short-day photoperiod (SD shift), or to long-day photoperiod (LD shift). SD shift triggered leaf senescence in both males and females by decreasing net photosynthesis rate (A), transpiration (E), and chlorophyll pigment (Chl), non-structural carbohydrate (NSC) and indoleacetic acid (IAA) contents, while increasing abscisic acid (ABA), malonaldehyde (MDA) and free proline (Pro) contents. The antioxidant enzyme (e.g. POD, CAT and SOD) activities and capability to maintain ultrastructural integrity also decreased under SD shift. Males exhibited faster leaf senescence than did females, as shown by greater decreases in A, E, Chl and IAA. However, males maintained a less senescent stage than did females, as indicated by higher values of A, Chl, NSC, IAA and antioxidant enzyme activities. Conversely, A, E, NSC and IAA contents and antioxidant enzyme activities were enhanced by lower O-2(center dot-) in females, whereas reduced by higher O-2(center dot-) in males under LD shift. Such sex-dependent responses of P. cathayana to photoperiod transitions showed that males and females possess different adaptabilities, which may relate to sex-specific leaf senescence speed under changing environments. |
| 学科主题 | Plant Sciences |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [30525036]; Chinese Academy of Sciences [KSCX2-YW-N-064] ; National Natural Science Foundation of China [30525036]; Chinese Academy of Sciences [KSCX2-YW-N-064] ; National Natural Science Foundation of China [30525036]; Chinese Academy of Sciences [KSCX2-YW-N-064] ; National Natural Science Foundation of China [30525036]; Chinese Academy of Sciences [KSCX2-YW-N-064] |
| 公开日期 | 2011-07-08 |
| 源URL | [http://210.75.237.14/handle/351003/22370]  |
| 专题 | 成都生物研究所_生态研究 |
| 通讯作者 | Li, CY, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhao, HX,Li, Y,Duan, BL,et al. Sex-related adaptive responses of Populus cathayana to photoperiod transitions[J]. PLANT CELL AND ENVIRONMENT,2009,32(10):1401_1411. |
| APA | Zhao, HX,Li, Y,Duan, BL,Korpelainen, H,Li, CY,&Li, CY, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China..(2009).Sex-related adaptive responses of Populus cathayana to photoperiod transitions.PLANT CELL AND ENVIRONMENT,32(10),1401_1411. |
| MLA | Zhao, HX,et al."Sex-related adaptive responses of Populus cathayana to photoperiod transitions".PLANT CELL AND ENVIRONMENT 32.10(2009):1401_1411. |
入库方式： OAI收割
来源：成都生物研究所
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