Allelochemical-driven N preference switch from NO3- to NH4+ affecting plant growth of Cunninghamia lanceolata (lamb.) hook
文献类型：期刊论文
| 作者 | Yu Lulu2; Zhao Hongxia4 ; Chen Guangdeng1,2,3; Yuan Shu1,2,3; Lan Ting1,2,3; Zeng Jian1,2,3
|
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2020 |
| 页码 | DOI: 10.1007/s11104-020-04539-8 |
| 关键词 | Chinese fir p-hydroxybenzoic acid Nitrogen preference C and N metabolism C-N imbalance |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-020-04539-8 |
| 产权排序 | 2 |
| 文献子类 | Article;Early Access |
| 英文摘要 | Aims Nitrogen (N) application is often known to influence various properties in Chinese fir growth, but the regeneration failure and productivity decline in Chinese fir plantations are often affected by allelochemical compounds. Little is known about the interactive effect of allelochemicals and N sources on the plant growth in Chinese fir seedlings. Methods Chinese fir seedlings were respectively subjected to the addition of ammonium (NH4+), nitrate (NO3-), p-hydroxybenzoic acid (pHBA) and their combined additions. Results The pHBA addition alone promoted Chinese fir seedlings growth, but this effect was differentially affected by the interaction with NH4+ or NO3-. Both NH4+ and NO3- application improved plant growth, but the stimulatory effect of NO3- was weakened with addition of pHBA. Although NO3- addition combined with pHBA increased N accumulation in roots, the enzymes activities related to N assimilation were significantly decreased. These negative influences were also manifested through the decreased photosynthetic capacity, the reduction in photosynthates production and accumulation, and the destruction of chloroplast structural integrity. Moreover, the C/N ratio in root was obviously decreased and N assimilation was inhibited under the combined treatment of pHBA and NO3-, thereby aggravating C - N imbalance. Conclusions The Chinese fir seedlings shifted their N uptake preference from NO3- to NH4+ when pHBA were added in soil. The dominant N source and allelochemicals interaction should be considered for Chinese fir growth. |
| 电子版国际标准刊号 | 1573-5036 |
| 语种 | 英语 |
| WOS记录号 | WOS:000530976400001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34629]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Zhao Hongxia |
| 作者单位 | 1.Sichuan Agr Univ, Inst Nat Resource, Chengdu 611130, Peoples R China; 2.Sichuan Agr Univ, Coll Resources Sci & Technol, Chengdu 611130, Peoples R China; 3.Sichuan Agr Univ, Inst Geog Intbrmat, Chengdu 611130, Peoples R China 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yu Lulu,Zhao Hongxia,Chen Guangdeng,et al. Allelochemical-driven N preference switch from NO3- to NH4+ affecting plant growth of Cunninghamia lanceolata (lamb.) hook[J]. PLANT AND SOIL,2020:DOI: 10.1007/s11104-020-04539-8. |
| APA | Yu Lulu,Zhao Hongxia,Chen Guangdeng,Yuan Shu,Lan Ting,&Zeng Jian.(2020).Allelochemical-driven N preference switch from NO3- to NH4+ affecting plant growth of Cunninghamia lanceolata (lamb.) hook.PLANT AND SOIL,DOI: 10.1007/s11104-020-04539-8. |
| MLA | Yu Lulu,et al."Allelochemical-driven N preference switch from NO3- to NH4+ affecting plant growth of Cunninghamia lanceolata (lamb.) hook".PLANT AND SOIL (2020):DOI: 10.1007/s11104-020-04539-8. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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