干旱区生态环境知识资源中心(Arid): Life-history strategies of soil microbial communities in an arid ecosystem

Arid

DOI	10.1038/s41396-020-00803-y
	Life-history strategies of soil microbial communities in an arid ecosystem
	Chen, Yongjian; Neilson, Julia W.; Kushwaha, Priyanka; Maier, Raina M.; Barberan, Albert
通讯作者	Chen, YJ ; Barberan, A
来源期刊	ISME JOURNAL
ISSN	1751-7362
EISSN	1751-7370
英文摘要	The overwhelming taxonomic diversity and metabolic complexity of microorganisms can be simplified by a life-history classification; copiotrophs grow faster and rely on resource availability, whereas oligotrophs efficiently exploit resource at the expense of growth rate. Here, we hypothesize that community-level traits inferred from metagenomic data can distinguish copiotrophic and oligotrophic microbial communities. Moreover, we hypothesize that oligotrophic microbial communities harbor more unannotated genes. To test these hypotheses, we conducted metagenomic analyses of soil samples collected from copiotrophic vegetated areas and from oligotrophic bare ground devoid of vegetation in an arid-hyperarid region of the Sonoran Desert, Arizona, USA. Results supported our hypotheses, as we found that multiple ecologically informed life-history traits including average 16S ribosomal RNA gene copy number, codon usage bias in ribosomal genes and predicted maximum growth rate were higher for microbial communities in vegetated than bare soils, and that oligotrophic microbial communities in bare soils harbored a higher proportion of genes that are unavailable in public reference databases. Collectively, our work demonstrates that life-history traits can distill complex microbial communities into ecologically coherent units and highlights that oligotrophic microbial communities serve as a rich source of novel functions.
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000577527600001
WOS关键词	OPERON COPY NUMBER ; TRAITS ; FACILITATION ; DIVERSITY ; DESERT ; GENOME ; KEGG
WOS类目	Ecology ; Microbiology
WOS研究方向	Environmental Sciences & Ecology ; Microbiology
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328342
作者单位	[Chen, Yongjian; Neilson, Julia W.; Kushwaha, Priyanka; Maier, Raina M.; Barberan, Albert] Univ Arizona, Dept Environm Sci, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Chen, Yongjian,Neilson, Julia W.,Kushwaha, Priyanka,et al. Life-history strategies of soil microbial communities in an arid ecosystem[J]. University of Arizona.
APA	Chen, Yongjian,Neilson, Julia W.,Kushwaha, Priyanka,Maier, Raina M.,&Barberan, Albert.
MLA	Chen, Yongjian,et al."Life-history strategies of soil microbial communities in an arid ecosystem".ISME JOURNAL