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Rhizosphere bacterial communities of dominant steppe plants shift in response to a gradient of simulated nitrogen deposition

文献类型：期刊论文

作者Yang, An; Liu, Nana2; Tian, Qiuying; Bai, Wenming; Williams, Mark3; Wang, Qibing; Li, Linghao; Zhang, Wen-Hao
刊名FRONTIERS IN MICROBIOLOGY
出版日期2015
卷号6
关键词nitrogen deposition microbial diversity rhizosphere Illumina Miseq temperate steppe Artemisia frigida Stipa kerlo
ISSN号1664-302X
DOI10.3389/fmicb.2015.00789
文献子类Article
英文摘要We evaluated effects of 9-year simulated nitrogen (N) deposition on microbial composition and diversity in the rhizosphere of two dominant temperate grassland species: grass Stipa krylovii and forb Artemisia frigida. Microbiomes in S. krylovii and A. frigida rhizosphere differed, but changed consistently along the N gradient. These changes were correlated to N-induced shifts to plant community. Hence, as plant biomass changed, so did bacterial rhizosphere communities, a result consistent with the role that N fertilizer has been shown to play in altering plant-microbial mutualisms. A total of 23 bacterial phyla were detected in the two rhizospheric soils by pyrosequencing, with Proteobacteria, Acidobacteria, and Bacteroidetes dominating the sequences of all samples. Bacterioidetes and Proteobacteria tended to increase, while Acidobacteria declined with increase in N addition rates. TM7 increased >5-fold in the high N addition rates, especially in S. krylovii rhizosphere. Nitrogen addition also decreased diversity of OTUs (operational taxonomic units), Shannon and Chaol indices of rhizospheric microbes regardless of plant species. These results suggest that there were both similar but also specific changes in microbial communities of temperate steppes due to N deposition. These findings would contribute to our mechanistic understanding of impacts of N deposition on grassland ecosystem by linking changes in plant traits to their rhizospheric microbes-mediated processes.
学科主题Microbiology
出版地LAUSANNE
WOS关键词SOIL MICROBIAL COMMUNITIES ; INDUCED SPECIES LOSS ; TEMPERATE STEPPE ; INNER-MONGOLIA ; WARMING ALTERS ; STIPA-KRYLOVII ; GRASSLAND SOIL ; DIVERSITY ; ECOSYSTEM ; FERTILIZATION
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000359815500001
出版者FRONTIERS MEDIA SA
资助机构National Natural Science Foundation of China [41273090, 31470466, 31470006]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/25975]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Beijing Inst Life Sci, Res Network Global Change Biol, Beijing 100093, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Virginia Polytech Inst & State Univ, Dept Hort, Blacksburg, VA 24061 USA
推荐引用方式
GB/T 7714		 Yang, An,Liu, Nana,Tian, Qiuying,et al. Rhizosphere bacterial communities of dominant steppe plants shift in response to a gradient of simulated nitrogen deposition[J]. FRONTIERS IN MICROBIOLOGY,2015,6.
APA Yang, An.,Liu, Nana.,Tian, Qiuying.,Bai, Wenming.,Williams, Mark.,...&Zhang, Wen-Hao.(2015).Rhizosphere bacterial communities of dominant steppe plants shift in response to a gradient of simulated nitrogen deposition.FRONTIERS IN MICROBIOLOGY,6.
MLA Yang, An,et al."Rhizosphere bacterial communities of dominant steppe plants shift in response to a gradient of simulated nitrogen deposition".FRONTIERS IN MICROBIOLOGY 6(2015).

入库方式： OAI收割

来源：植物研究所

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