Relative Importance of Deterministic and Stochastic Processes on Soil Microbial Community Assembly in Temperate Grasslands

doi:10.3390/microorganisms9091929

	Relative Importance of Deterministic and Stochastic Processes on Soil Microbial Community Assembly in Temperate Grasslands
	Liu, Nana 1,2; Hu, Huifeng 2; Ma, Wenhong 3; Deng, Ye 4; Wang, Qinggang 5; Luo, Ao 1; Meng, Jiahui 1; Feng, Xiaojuan2 ; Wang, Zhiheng 1
	2021
发表期刊	MICROORGANISMS
卷号	9 期号:9
摘要	Changes in species composition across communities, i.e., beta-diversity, is a central focus of ecology. Compared to macroorganisms, the beta-diversity of soil microbes and its drivers are less studied. Whether the determinants of soil microbial beta-diversity are consistent between soil depths and between abundant and rare microorganisms remains controversial. Here, using the 16S-rRNA of soil bacteria and archaea sampled at different soil depths (0-10 and 30-50 cm) from 32 sites along an aridity gradient of 1500 km in the temperate grasslands in northern China, we compared the effects of deterministic and stochastic processes on the taxonomic and phylogenetic beta-diversity of soil microbes. Using variation partitioning and null models, we found that the taxonomic beta-diversity of the overall bacterial communities was more strongly determined by deterministic processes in both soil layers (the explanatory power of environmental distance in topsoil: 25.4%; subsoil: 47.4%), while their phylogenetic counterpart was more strongly determined by stochastic processes (the explanatory power of spatial distance in topsoil: 42.1; subsoil 24.7%). However, in terms of abundance, both the taxonomic and phylogenetic beta-diversity of the abundant bacteria in both soil layers was more strongly determined by deterministic processes, while those of rare bacteria were more strongly determined by stochastic processes. In comparison with bacteria, both the taxonomic and phylogenetic beta-diversity of the overall abundant and rare archaea were strongly determined by deterministic processes. Among the variables representing deterministic processes, contemporary and historical climate and aboveground vegetation dominated the microbial beta-diversity of the overall and abundant microbes of both domains in topsoils, but soil geochemistry dominated in subsoils. This study presents a comprehensive understanding on the beta-diversity of soil microbial communities in the temperate grasslands in northern China. Our findings highlight the importance of soil depth, phylogenetic turnover, and species abundance in the assembly processes of soil microbial communities.
关键词	community composition environmental selection dispersal limitation subsoil microbial diversity rare microbes bacteria archaea
学科领域	Microbiology
DOI	10.3390/microorganisms9091929
收录类别	SCI
语种	英语
WOS关键词	BETA-DIVERSITY ; ARCHAEAL COMMUNITIES ; BACTERIAL ; PATTERNS ; ASSOCIATIONS ; ENVIRONMENT ; RESPONSES ; NICHES ; MODEL ; RARE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000701148700001
出版者	MDPI
文献子类	Article
出版地	BASEL
EISSN	2076-2607
资助机构	National Natural Science Foundation of China [32125026, 31988102] ; Chinese Academy of Sciences K. C. Wong Education Foundation [GJTD-2019-10] ; Youth Fund of Ministry of Education Laboratory for Earth Surface Processes of Peking University [LESP201702]
作者邮箱	nnliu@pku.edu.cn ; huifhu@ibcas.ac.cn ; whmapku@126.com ; yedeng@rcees.ac.cn ; wangqg@cau.edu.cn ; luoao@pku.edu.cn ; mengjiahui@pku.edu.cn ; xfeng@ibcas.ac.cn ; zhiheng.wang@pku.edu.cn
作品OA属性	Green Published, gold
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/26691
专题	植被与环境变化国家重点实验室
作者单位	1.Peking Univ, Coll Urban & Environm Sci, Inst Ecol, Minist Educ, Beijing 100871, Peoples R China 2.Peking Univ, Coll Urban & Environm Sci, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Inner Mongolia Univ, Coll Ecol & Environm, Hohhot 010021, Peoples R China 5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, CAS Key Lab Environm Biotechnol, Beijing 100085, Peoples R China 6.Agricultural Univ, Coll Resources & Environm Sci, Dept Ecol & Ecol Engn, Key Lab Biodivers & Organ Farming, Beijing 100193, Peoples R China
推荐引用方式 GB/T 7714	Liu, Nana,Hu, Huifeng,Ma, Wenhong,et al. Relative Importance of Deterministic and Stochastic Processes on Soil Microbial Community Assembly in Temperate Grasslands[J]. MICROORGANISMS,2021,9(9).
APA	Liu, Nana.,Hu, Huifeng.,Ma, Wenhong.,Deng, Ye.,Wang, Qinggang.,...&Wang, Zhiheng.(2021).Relative Importance of Deterministic and Stochastic Processes on Soil Microbial Community Assembly in Temperate Grasslands.MICROORGANISMS,9(9).
MLA	Liu, Nana,et al."Relative Importance of Deterministic and Stochastic Processes on Soil Microbial Community Assembly in Temperate Grasslands".MICROORGANISMS 9.9(2021).

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Liu-2021-Relative Im（38342KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文