Populus deltoides females are more selective in nitrogen assimilation than males under different nitrogen forms supply
文献类型：期刊论文
| 作者 | Li, Junyu; Dong, Tingfa; Guo, Qingxue; Zhao, Hongxia |
| 刊名 | TREES-STRUCTURE AND FUNCTION
 |
| 出版日期 | 2015 |
| 卷号 | 29期号:1页码:143-159 |
| 关键词 | NITRATE REDUCTASE-ACTIVITY HIGHER-PLANTS PHYSIOLOGICAL-RESPONSES PHOSPHORUS DEFICIENCIES NUTRIENT-AVAILABILITY ATMOSPHERIC AMMONIA NET PHOTOSYNTHESIS DICYANDIAMIDE DCD DIOECIOUS SHRUB TREMBLING ASPEN |
| 产权排序 | 1 |
| 通讯作者 | Zhao, HX (reprint author), Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China. |
| 合作状况 | 国内 |
| 英文摘要 | Female cuttings of Populus deltoides were sensitive to inorganic nitrogen forms and biased for NO (3) (-) -N, whereas males exhibited no obvious preference for nitrogen form in nitrogen fertilizations. We investigated the effects of different inorganic nitrogen forms (NO3 (-)-N and NH4 (+)-N) on the morphology, physiology, and carbohydrate accumulation of male and female Populus deltoides. Results showed that both NO3 (-)-N and NH4 (+)-N supply forms significantly increased plant growth, C and N contents of all plant organs, chlorophyll pigment contents, net photosynthesis rates (P (n)), and instantaneous photosynthetic N-use efficiencies (PNUE) in the leaves of both male and female P. deltoides. Females exhibited high total plant dry mass accumulation, P (n), PNUE, and N contents in leaves but lower non-structure carbohydrate accumulation than males under nitrate treatment. However, males showed significantly higher P (n), PNUE, and (NH4)-N-15 (+) in the leaves, free amino acid content, and nitrate reductase (NR) activities than females under each nitrogen form supply treatment. These results suggested that male and female P. deltoides used different adaptive strategies in dry mass accumulation, allocation, and exhibited different interactions between nitrogen and carbon metabolism. Males exhibited higher nitrogen assimilation ability and N-use efficiency than females under nitrogen fertilizations, whereas females showed more sensitivity to inorganic nitrogen forms of treatments and distinct preference for NO3 (-)-N. Male P. deltoides showed no obvious bias to the two different N forms. Therefore, the different preferences of male and female P. deltoides of N supplied forms can serve as an important strategy for minimizing intraspecific competition between the two genders. |
| 学科主题 | Forestry |
| 类目[WOS] | Forestry |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://210.75.237.14/handle/351003/27543]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Li, Junyu,Dong, Tingfa,Guo, Qingxue,et al. Populus deltoides females are more selective in nitrogen assimilation than males under different nitrogen forms supply[J]. TREES-STRUCTURE AND FUNCTION,2015,29(1):143-159. |
| APA | Li, Junyu,Dong, Tingfa,Guo, Qingxue,&Zhao, Hongxia.(2015).Populus deltoides females are more selective in nitrogen assimilation than males under different nitrogen forms supply.TREES-STRUCTURE AND FUNCTION,29(1),143-159. |
| MLA | Li, Junyu,et al."Populus deltoides females are more selective in nitrogen assimilation than males under different nitrogen forms supply".TREES-STRUCTURE AND FUNCTION 29.1(2015):143-159. |
入库方式： OAI收割
来源：成都生物研究所
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