Divergent assemblage patterns and driving forces for bacterial and fungal communities along a glacier forefield chronosequence

doi:10.1016/j.soilbio.2017.12.019

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Divergent assemblage patterns and driving forces for bacterial and fungal communities along a glacier forefield chronosequence
	Jiang, Yonglei 1,3; Lei, Yanbao1 ; Yang, Yan1 ; Korpelainen, Helena 4; Niinemets, Ulo 5; Li, Chunyang2
刊名	SOIL BIOLOGY & BIOCHEMISTRY
	2018-03-01
卷号	118 页码:207-216
关键词	Bacterial community assembly Driving forces Ddaphic and biotic properties Fungal community assembly Hailuogou Glacier Chronosequence Stochastic and deterministic processes
ISSN号	0038-0717
DOI	10.1016/j.soilbio.2017.12.019
英文摘要	Despite the ubiquitous distributions and critical ecological functions of microorganisms in pedogenesis and ecosystem development in recently deglaciated areas, there are contrasting successional trajectories among bacteria and fungi, but the driving forces of community assembly still remain poorly resolved. In this study, we analyzed both bacterial and fungal lineages associated with seven different stages in the Hailuogou Glacier Chronosequence, to quantify their taxonomic composition and successional dynamics, and to decipher the relative contribution from the bottom-up control of soil nutrients and altered vegetation as well as top-down pressures from nematode grazers. Co-occurrence networks showed that the community complexity for both bacteria and fungi typically peaked at the middle chronosequence stages. The overlapping nodes mainly belonged to Proteobacteria and Acidobacteria in bacteria, and Ascomycota and Basidiomycota in fungi, which was further supported by the indicator species analysis. Variation in partitioning and structural equation modeling suggested that edaphic properties were the primary agents shaping microbial community structures, especially at the early stages. The importance of biotic factors, including plant richness and nematode feeding, increased during the last two stages along with the establishment of a coniferous forest, eventually governing the turnover of fungal communities. Moreover, bacterial communities exhibited a more compact network topology during assembly, thus supporting determinism, whereas the looser clustering of fungal communities illustrated that they were determined more by stochastic processes. These pieces of evidence collectively reveal divergent successional trajectories and driving forces for soil bacterial and fungal communities along a glacier forefield chronosequence.
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000428490500023
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/22888]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Li, Chunyang
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China 2.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou 310036, Zhejiang, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 4.Univ Helsinki, Viikki Plant Sci Ctr, Dept Agr Sci, POB 27, FI-00014 Helsinki, Finland 5.Estonian Univ Life Sci, Inst Agr & Environm Sci, Kreutzwaldi 1, EE-51014 Tartu, Estonia
推荐引用方式 GB/T 7714	Jiang, Yonglei,Lei, Yanbao,Yang, Yan,et al. Divergent assemblage patterns and driving forces for bacterial and fungal communities along a glacier forefield chronosequence[J]. SOIL BIOLOGY & BIOCHEMISTRY,2018,118:207-216.
APA	Jiang, Yonglei,Lei, Yanbao,Yang, Yan,Korpelainen, Helena,Niinemets, Ulo,&Li, Chunyang.(2018).Divergent assemblage patterns and driving forces for bacterial and fungal communities along a glacier forefield chronosequence.SOIL BIOLOGY & BIOCHEMISTRY,118,207-216.
MLA	Jiang, Yonglei,et al."Divergent assemblage patterns and driving forces for bacterial and fungal communities along a glacier forefield chronosequence".SOIL BIOLOGY & BIOCHEMISTRY 118(2018):207-216.