Correlation of continuous ryegrass regrowth with cytokinin induced by root nitrate absorption
文献类型：期刊论文
| 作者 | Wang, Xiao-Ling; Wang, Jia3; Li, Zhen-Qing |
| 刊名 | JOURNAL OF PLANT RESEARCH
 |
| 出版日期 | 2013 |
| 卷号 | 126期号:5页码:685-697 |
| 关键词 | Continuous regrowth Cytokinin Frequent defoliation Nitrate ion Ryegrass |
| ISSN号 | 0918-9440 |
| DOI | 10.1007/s10265-013-0574-2 |
| 文献子类 | Article |
| 英文摘要 | This study investigated the separate and combined effects of nitrate (NO3 (-)) and cytokinin additions on continuous ryegrass regrowth after defoliation and the underlying mechanisms. Our results showed that frequent defoliation reduced the biomass of newly grown leaves and roots, the root soluble carbohydrate contents, the root vitality (an indicator of root absorption capacity), and the leaf contents of NO3 (-), zeatin and zeatin riboside (Z + ZR), and isopentenyl adenine and isopentenyl adenosine (IP + IPA). NO3 (-)addition to the roots or leaves increased the biomass of newly grown leaves as well as the leaf contents of NO3 (-), Z + ZR, and IP + IPA without increasing the root-to-shoot delivery of endogenous cytokinin. Interestingly, cytokinin directly added to the leaves also increased the biomass of newly grown leaves and their Z + ZR and IP + IPA contents, suggesting that nitrate-induced leaf cytokinin production mediates the growth-promoting effects of nitrate. We also found that cytokinin had a direct whereas NO3 (-) had an indirect effect on the biomass of newly grown leaves. Taken together, our results indicate that leaf cytokinin production induced by NO3 (-) absorbed through the roots plays a key role in continuous ryegrass regrowth after defoliation. |
| 学科主题 | Plant Sciences |
| 出版地 | TOKYO |
| 电子版国际标准刊号 | 1618-0860 |
| WOS关键词 | WATER-STRESS ; SIGNAL-TRANSDUCTION ; ELEVATED CO2 ; NITROGEN ; GROWTH ; RICE ; BIOSYNTHESIS ; WHEAT ; EXPRESSION ; RESPONSES |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000323502000012 |
| 出版者 | SPRINGER JAPAN KK |
| 资助机构 | 973 program(National Basic Research Program of China) ; Postdoctoral Science Foundation of China(China Postdoctoral Science Foundation) ; innovation capability cultivation foundation in natural science of Henan University of Science and technology ; special Postdoctoral Science Foundation of China |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27941]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Henan Univ Sci & Technol, Coll Agron, Luoyang 471003, Henan, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.[Wang, Xiao-Ling |
| 推荐引用方式 GB/T 7714 | Wang, Xiao-Ling,Wang, Jia,Li, Zhen-Qing. Correlation of continuous ryegrass regrowth with cytokinin induced by root nitrate absorption[J]. JOURNAL OF PLANT RESEARCH,2013,126(5):685-697. |
| APA | Wang, Xiao-Ling,Wang, Jia,&Li, Zhen-Qing.(2013).Correlation of continuous ryegrass regrowth with cytokinin induced by root nitrate absorption.JOURNAL OF PLANT RESEARCH,126(5),685-697. |
| MLA | Wang, Xiao-Ling,et al."Correlation of continuous ryegrass regrowth with cytokinin induced by root nitrate absorption".JOURNAL OF PLANT RESEARCH 126.5(2013):685-697. |
入库方式： OAI收割
来源：植物研究所
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