Sexual competition and N supply interactively affect the dimorphism and competiveness of opposite sexes in Populus cathayana
文献类型：期刊论文
| 作者 | Chen, Juan; Dong, Tingfa; Duan, Baoli; Korpelainen, Helena; Niinemets, Uelo; Li, Chunyang |
| 刊名 | PLANT CELL AND ENVIRONMENT
 |
| 出版日期 | 2015 |
| 卷号 | 38期号:7页码:1285-1298 |
| 关键词 | SELF/NON-SELF DISCRIMINATION ALFALFA MEDICAGO-SATIVA ALTITUDINAL GRADIENT AMINO-ACID CHLOROPHYLL FLUORESCENCE PHYSIOLOGICAL-RESPONSES NUTRIENT AVAILABILITY ARABIDOPSIS-THALIANA BIOMASS ALLOCATION ROOT COMPETITION |
| 产权排序 | 3 |
| 通讯作者 | Li, CY (reprint author), Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China. |
| 合作状况 | 国际 |
| 英文摘要 | Several important dioecious species show sexual spatial segregation (SSS) along environmental gradients that have significant ecological effect on terrestrial ecosystem. However, little attention has been paid to understanding of how males and females respond to environmental gradients and sexual competition. We compared eco-physiological parameters of males and females of Populus cathayana under different sexual competition patterns and nitrogen (N) supply levels. We found that males and females interacting with the same or opposite sex showed significant differences in biomass partition, photosynthetic capacity, carbon (C) and N metabolism, and leaf ultrastructure, and that the sexual differences to competition were importantly driven by N supply. The intersexual competition was enhanced under high N, while the intrasexual competition among females was amplified under low N. Under high N, the intersexual competition stimulated the growth of the females and negatively affected the males. In contrast, under low N, the males exposed to intrasexual competition had the highest tolerance, whereas females exposed to intrasexual competition showed the lowest adaptation among all competition patterns. Sexual competition patterns and N supply levels significantly affected the sexual dimorphism and competitiveness, which may play an important role in spatial segregation of P.cathayana populations. To gain insight into the spatial segregation of the sexes and for successful conservation and management in dioecious plants, we compared eco-physiological parameters of males and females of Populus cathayana under different sexual competition patterns and nitrogen (N) supply levels. The results indicated that males and females interacting with the same or opposite sex showed significant differences in biomass partition, photosynthetic capacity, carbon and nitrogen metabolism, and leaf ultrastructure. The inter-sexual competition was intensified under high N condition, while the intra-sexual competition among females was amplified under low N condition. Sexual competition patterns and N supply levels significantly affected the sexual dimorphism and competitiveness, which may play an important role in spatial segregation and sexual structure of P. cathayana populations. |
| 学科主题 | Plant Sciences |
| 类目[WOS] | Plant Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://210.75.237.14/handle/351003/27518]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Chen, Juan,Dong, Tingfa,Duan, Baoli,et al. Sexual competition and N supply interactively affect the dimorphism and competiveness of opposite sexes in Populus cathayana[J]. PLANT CELL AND ENVIRONMENT,2015,38(7):1285-1298. |
| APA | Chen, Juan,Dong, Tingfa,Duan, Baoli,Korpelainen, Helena,Niinemets, Uelo,&Li, Chunyang.(2015).Sexual competition and N supply interactively affect the dimorphism and competiveness of opposite sexes in Populus cathayana.PLANT CELL AND ENVIRONMENT,38(7),1285-1298. |
| MLA | Chen, Juan,et al."Sexual competition and N supply interactively affect the dimorphism and competiveness of opposite sexes in Populus cathayana".PLANT CELL AND ENVIRONMENT 38.7(2015):1285-1298. |
入库方式： OAI收割
来源：成都生物研究所
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