Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands

doi:10.1128/mSystems.00566-19

	Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands
	Liu, Nana 1,2; Hu, Huifeng 2; Ma, Wenhong 3; Deng, Ye 4; Liu, Yuqing 2; Hao, Baihui 3; Zhang, Xinying 2; Dimitrov, Dimitar 5; Feng, Xiaojuan2 ; Wang, Zhiheng 1
	2019
发表期刊	MSYSTEMS
ISSN	2379-5077
卷号	4 期号:5
摘要	Biogeographic patterns and drivers of soil microbial diversity have been extensively studied in the past few decades. However, most research has focused on the topsoil, while the subsoil is assumed to have microbial diversity patterns similar to those of the topsoil. Here we compared patterns and drivers of microbial alpha and beta diversity in and between topsoils (0 to 10 cm) and subsoils (30 to 50 cm) of temperate grasslands in Inner Mongolia of China, covering an similar to 1,500-km transect along an aridity gradient. Counter to the conventional assumption, we find contrasting biogeographic patterns of diversity and influencing factors for different bacterial and archaeal groups and between depths. While bacterial diversity remains constant or increases with increasing aridity in topsoil and decreases in subsoil, archaeal diversity decreases in topsoil and remains constant in subsoil. Microbial diversity in the topsoil is most strongly influenced by aboveground vegetation and contemporary climate but is most strongly influenced by the factor historical temperature anomaly since the Last Glacial Maximum (LGM) and by soil pH in the subsoil. Moreover, the biogeographic patterns of topsoil-subsoil community dissimilarities vary for different microbial groups and are overall most strongly influenced by soil fertility differences between depths for bacteria and by contemporary climate for archaea. These findings suggest that diversity patterns observed in the topsoil may not be readily applied to the subsoil horizons. For the subsoil in particular, historical climate plays a vital role in the spatial variation of bacterial diversity. Overall, our study provides novel information for understanding and predicting soil microbial diversity patterns at depth. IMPORTANCE Exploring the biogeographic patterns of soil microbial diversity is critical for understanding mechanisms underlying the response of soil processes to climate change. Using top- and subsoils from an similar to 1,500-km temperate grassland transect, we find divergent patterns of microbial diversity and its determinants in the topsoil versus the subsoil. Furthermore, we find important and direct legacy effects of historical climate change on the microbial diversity of subsoil yet indirect effects on topsoil. Our findings challenge the conventional assumption of similar geographic patterns of soil microbial diversity along soil profiles and help to improve our understanding of how soil microbial communities may respond to future climate change in different regions with various climate histories.
关键词	biogeographic patterns topsoil subsoil bacteria archaea historical temperature anomaly temperate grassland
学科领域	Microbiology
DOI	10.1128/mSystems.00566-19
收录类别	SCI
语种	英语
WOS关键词	MICROBIAL COMMUNITIES ; METHANOGENIC ARCHAEA ; ORGANIC-CARBON ; USE EFFICIENCY ; SOIL DEPTH ; PRECIPITATION ; CLIMATE ; RESPONSES ; DECOMPOSITION ; ABUNDANCE
WOS研究方向	Microbiology
WOS记录号	WOS:000500493300014
出版者	AMER SOC MICROBIOLOGY
文献子类	Article
出版地	WASHINGTON
资助机构	National Key Research Development Program of China [2017YFA0605101, 2015CB954201] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31621091] ; State Key Laboratory of Vegetation and Environmental Change [LVEC Y7206F2001] ; Youth Fund of Ministry of Education Laboratory for Earth Surface Processes of Peking University [LESP201702] ; Chinese Academy of Sciences-Peking University Pioneer Collaboration Team
作者邮箱	xfeng@ibcas.ac.cn ; zhiheng.wang@pku.edu.cn
作品OA属性	Green Published, gold, Green Submitted
引用统计	被引频次：24[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/2S10CLM1/19715
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, Peoples R China 2.Peking Univ, Coll Urban & Environm Sci, Key Lab Earth Surface Proc, Minist Educ, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 4.Inner Mongolia Univ, Coll Ecol & Environm, Hohhot, Peoples R China 5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, CAS Key Lab Environm Biotechnol, Beijing, Peoples R China 6.Univ Bergen, Univ Museum Bergen, Dept Nat Hist, Bergen, Norway
推荐引用方式 GB/T 7714	Liu, Nana,Hu, Huifeng,Ma, Wenhong,et al. Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands[J]. MSYSTEMS,2019,4(5).
APA	Liu, Nana.,Hu, Huifeng.,Ma, Wenhong.,Deng, Ye.,Liu, Yuqing.,...&Wang, Zhiheng.(2019).Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands.MSYSTEMS,4(5).
MLA	Liu, Nana,et al."Contrasting Biogeographic Patterns of Bacterial and Archaeal Diversity in the Top- and Subsoils of Temperate Grasslands".MSYSTEMS 4.5(2019).

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-2019-Contrasting（4693KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文