Effects of phosphorus application on photosynthetic carbon and nitrogen metabolism, water use efficiency and growth of dwarf bamboo (Fargesia rufa) subjected to water deficit
文献类型：期刊论文
| 作者 | Liu, Chenggang; Wang, Yanjie; Pan, Kaiwen; Jin, Yanqiang; Li, Wei; Zhang, Lin |
| 刊名 | PLANT PHYSIOLOGY AND BIOCHEMISTRY
 |
| 出版日期 | 2015 |
| 卷号 | 96页码:20-28 |
| 关键词 | HIGHER-PLANTS DROUGHT RESPONSES STRESS NUTRITION AVAILABILITY TOLERANCE LEAVES SEED FERTILIZATION |
| 产权排序 | 1 |
| 通讯作者 | Wang, YJ (reprint author), Sichuan Normal Univ, Coll Life Sci, Chengdu 610101, Peoples R China. |
| 合作状况 | 国内 |
| 英文摘要 | Dwarf bamboo (Fargesia rufa Yi), one of the staple foods for the endangered giant pandas, is highly susceptible to water deficit due to its shallow roots. In the face of climate change, maintenance and improvement in its productivity is very necessary for the management of the giant pandas' habitats. However, the regulatory mechanisms underlying plant responses to water deficit are poorly known. To investigate the effects of P application on photosynthetic C and N metabolism, water use efficiency (WUE) and growth of dwarf bamboo under water deficit, a completely randomized design with two factors of two watering (well-watered and water-stressed) and two P regimes (with and without P fertilization) was arranged. P application hardly changed growth, net CO2 assimilation rate (P-n) and WUE in well-watered plants but significantly increased relative growth rate (RGR) and P-n in water-stressed plants. The effect of P application on RGR under water stress was mostly associated with physiological adjustments rather than with differences in biomass allocation. P application maintained the balance of C metabolism in well-watered plants, but altered the proportion of nitrogenous compounds in N metabolism. By contrast, P application remarkably increased sucrose-metabolizing enzymes activities with an obvious decrease in sucrose content in water-stressed plants, suggesting an accelerated sucrose metabolism. Activation of nitrogen-metabolizing enzymes in water-stressed plants was attenuated after P application, thus slowing nitrate reduction and ammonium assimilation. P application hardly enlarged the phenotypic plasticity of dwarf bamboo in response to water in the short term. Generally, these examined traits of dwarf bamboo displayed weak or negligible responses to water-P interaction. In conclusion, P application could accelerate P-n and sucrose metabolism and slow N metabolism in water-stressed dwarf bamboo, and as a result improved RGR and alleviated damage from soil water deficit. (C) 2015 Elsevier Masson SAS. All rights reserved. |
| 学科主题 | Plant Sciences |
| 类目[WOS] | Plant Sciences |
| 语种 | 英语 |
| 源URL | [http://210.75.237.14/handle/351003/27489]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Liu, Chenggang,Wang, Yanjie,Pan, Kaiwen,et al. Effects of phosphorus application on photosynthetic carbon and nitrogen metabolism, water use efficiency and growth of dwarf bamboo (Fargesia rufa) subjected to water deficit[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2015,96:20-28. |
| APA | Liu, Chenggang,Wang, Yanjie,Pan, Kaiwen,Jin, Yanqiang,Li, Wei,&Zhang, Lin.(2015).Effects of phosphorus application on photosynthetic carbon and nitrogen metabolism, water use efficiency and growth of dwarf bamboo (Fargesia rufa) subjected to water deficit.PLANT PHYSIOLOGY AND BIOCHEMISTRY,96,20-28. |
| MLA | Liu, Chenggang,et al."Effects of phosphorus application on photosynthetic carbon and nitrogen metabolism, water use efficiency and growth of dwarf bamboo (Fargesia rufa) subjected to water deficit".PLANT PHYSIOLOGY AND BIOCHEMISTRY 96(2015):20-28. |
入库方式： OAI收割
来源：成都生物研究所
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