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Nitrogen fertilization modulates beneficial rhizosphere interactions through signaling effect of nitric oxide

文献类型：期刊论文

作者Kang, An1; Zhang, Nan1; Xun, Weibing1; Dong, Xiaoyan1,2; Xiao, Ming1; Liu, Zihao1; Xu, Zhihui1; Feng, Haichao1; Zou, Jianwen1,3; Shen, Qirong1
刊名PLANT PHYSIOLOGY
出版日期2022-02-04
卷号188期号:2页码:1129-1140
ISSN号0032-0889
DOI10.1093/plphys/kiab555
通讯作者Zhang, Ruifu(zhangruifu@caas.cn)
英文摘要Chemical nitrogen (N) fertilization is customary for increasing N inputs in agroecosystems. The nutritional effects of N fertilization on plants and soil microbes have been well studied. However, the signaling effects of N fertilization on rhizosphere plant-microbe interactions and the following feedback to plant performance remain unknown. Here, we investigated the effect of different N fertilizations on the behavior of the plant growth-promoting rhizobacteria (PGPR) Bacillus velezensis SQR9 in the cucumber (Cucumis sativus L.) rhizosphere. Moderate N fertilization promoted higher rhizosphere colonization of strain SQR9 than insufficient or excessive N input. Nitric oxide (NO) produced through the denitrification process under N fertilization was identified as the signaling molecule that dominates the root colonization of PGPR, and this effect could be neutralized by the NO-specific scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxy-3-oxide. Gene expression analysis demonstrated that NO regulated the biofilm formation of strain SQR9 by affecting the synthesis of extracellular matrix gamma-polyglutamic acid, consequently impacting its root colonization. Finally, we demonstrated that moderate N fertilization-modulated enhanced PGPR root colonization can significantly promote plant growth and nitrogen use efficiency. This study provides insights into our understanding of the beneficial rhizosphere plant-microbe interactions under N fertilization and suggests that rational fertilization is critical to promote beneficial rhizosphere interactions for sustainable agricultural production. Moderate N fertilization enhances plant-beneficial rhizobacteria interactions and promotes plant N use efficiency, which is mediated by the signaling effect of denitrification-produced NO.
WOS关键词BACILLUS-SUBTILIS ; SOIL ; DENITRIFICATION ; MICROORGANISMS ; COMMUNITIES ; DECREASES ; DIVERSITY ; EMISSIONS ; RESPONSES ; INSIGHTS
WOS研究方向Plant Sciences
语种英语
WOS记录号WOS:000761476800041
资助机构National Natural Science Foundation of China ; Agricultural Science and Technology Innovation Program of CAAS ; Young Elite Scientists Sponsorship Program by CAST ; Jiangsu Provincial Natural Science Foundation of China
源URL[http://ir.yic.ac.cn/handle/133337/37611]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_近岸生态与环境实验室
通讯作者Zhang, Ruifu
作者单位1.Nanjing Agr Univ, Educ Minist Engn Ctr Resource Saving Fertilizers, Jiangsu Collaborat Innovat Ctr Solid Organ Wastes, Jiangsu Prov Key Lab Solid Organ Waste Utilizat, Nanjing 210095, Jiangsu, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
3.Nanjing Agr Univ, Coll Resources & Environm Sci, Jiangsu Key Lab Low Carbon Agr & GHGs Mitigat, Nanjing 210095, Jiangsu, Peoples R China
4.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Microbial Resources Collect & Preservat, Minist Agr, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Kang, An,Zhang, Nan,Xun, Weibing,et al. Nitrogen fertilization modulates beneficial rhizosphere interactions through signaling effect of nitric oxide[J]. PLANT PHYSIOLOGY,2022,188(2):1129-1140.
APA Kang, An.,Zhang, Nan.,Xun, Weibing.,Dong, Xiaoyan.,Xiao, Ming.,...&Zhang, Ruifu.(2022).Nitrogen fertilization modulates beneficial rhizosphere interactions through signaling effect of nitric oxide.PLANT PHYSIOLOGY,188(2),1129-1140.
MLA Kang, An,et al."Nitrogen fertilization modulates beneficial rhizosphere interactions through signaling effect of nitric oxide".PLANT PHYSIOLOGY 188.2(2022):1129-1140.

入库方式： OAI收割

来源：烟台海岸带研究所

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