干旱区生态环境知识资源中心(Arid): Chemoheterotrophic diazotrophs contribute to nitrogen incorporation in a semi-arid desert

Arid

DOI	10.1007/s00374-020-01492-7
	Chemoheterotrophic diazotrophs contribute to nitrogen incorporation in a semi-arid desert
	Miao, Lin; Feng, Wei; Zhang, Yuqing; Bai, Yuxuan; Sun, Yanfei; She, Weiwei; Mao, Henan; Lai, Zongrui; Qin, Shugao
通讯作者	Zhang, YQ
来源期刊	BIOLOGY AND FERTILITY OF SOILS
ISSN	0178-2762
EISSN	1432-0789
出版年	2020
卷号	56 期号:8 页码:1165-1176
英文摘要	To explore the non-cyanobacteria diazotrophic populations and their microbial interactions, and further evaluate the N-fixing activities of chemoheterotrophic groups in deserts, we collected soil samples from the Mu Us Desert of northern China, and performed amplicon sequencing, targeting the functional genenifH combined with the dark incubation with(15)N(2)labelling under laboratory conditions. A total of 4455 operational taxonomic units were clustered from 786,778 high-qualitynifH reads, 96.57% of which were classified as Proteobacteria. Network analyses showed that three putative keystone taxa (i.e. the generaAzospirillum,Bradyrhizobium, andMesorhizobium) were mostly responsible for connecting other diazotrophic populations, and that 98.03% of the associations between any two nodes were positive. The(15)N(2)labelling experiment showed that the average N-fixing rates added 0.03 mg N kg(-1)day(-1)as soil total N and 0.006 mg N kg(-1)day(-1)as total dissolved N over 28 days. Our results highlight the interactions of non-cyanobacteria diazotrophs and the potential of the chemoheterotrophic types in transforming atmospheric N(2)into bio-available ammonium in desert soils.
英文关键词	Chemoheterotrophic diazotrophs Network analyses (15)N(2)labelling method N-fixing activity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000555752900001
WOS关键词	BIOLOGICAL SOIL CRUSTS ; ENVIRONMENTAL CONTROLS ; COOCCURRENCE PATTERNS ; DINITROGEN FIXATION ; COMMUNITY ; DIVERSITY ; ECOLOGY ; COMPETITION ; SUCCESSION ; NETWORKS
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325400
作者单位	[Miao, Lin; Feng, Wei; Zhang, Yuqing; Bai, Yuxuan; Sun, Yanfei; She, Weiwei; Mao, Henan; Lai, Zongrui; Qin, Shugao] Beijing Forestry Univ, Yanchi Res Stn, Sch Soil & Water Conservat, Beijing, Peoples R China; [Feng, Wei; Zhang, Yuqing; She, Weiwei; Lai, Zongrui] Beijing Forestry Univ, Key Lab State Forestry Adm Soil & Water Conservat, Beijing, Peoples R China; [Qin, Shugao] Beijing Forestry Univ, Minist Educ, Engn Res Ctr Forestry Ecol Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Miao, Lin,Feng, Wei,Zhang, Yuqing,et al. Chemoheterotrophic diazotrophs contribute to nitrogen incorporation in a semi-arid desert[J]. 北京林业大学,2020,56(8):1165-1176.
APA	Miao, Lin.,Feng, Wei.,Zhang, Yuqing.,Bai, Yuxuan.,Sun, Yanfei.,...&Qin, Shugao.(2020).Chemoheterotrophic diazotrophs contribute to nitrogen incorporation in a semi-arid desert.BIOLOGY AND FERTILITY OF SOILS,56(8),1165-1176.
MLA	Miao, Lin,et al."Chemoheterotrophic diazotrophs contribute to nitrogen incorporation in a semi-arid desert".BIOLOGY AND FERTILITY OF SOILS 56.8(2020):1165-1176.