干旱区生态环境知识资源中心(Arid): Structural Characteristics and Assembly Mechanisms of Soil Microbial Communities under Water-Salt Gradients in Arid Regions

Arid

DOI	10.3390/microorganisms11041060
	Structural Characteristics and Assembly Mechanisms of Soil Microbial Communities under Water-Salt Gradients in Arid Regions
	Yang, Guang; Jiang, Lamei; Li, Wenjing; Li, Eryang; Lv, Guanghui
通讯作者	Lv, GH
来源期刊	MICROORGANISMS
EISSN	2076-2607
出版年	2023
卷号	11 期号:4
英文摘要	Exploring the structural characteristics of arid soil microbial communities and their assembly mechanisms is important for understanding the ecological characteristics of arid zone soils and promoting ecological restoration. In this study, we used Illumina high-throughput sequencing technology to study soils in the arid zone of the Lake Ebinur basin, determined the differences among soil microbial community structures in the study area under different water-salt gradients, and investigated the effects of environmental factors on microbial community structure and assembly mechanisms. The results show the following: the microbial community alpha diversity exhibited a significantly higher low water-salt gradient (L) than high water-salt gradient (H) and medium water-salt gradient (M). The pH was most strongly correlated with soil microbial community structure, where the alpha diversity indices of the bacterial community and fungal community were significantly negatively correlated with pH, and the Bray-Curtis distance of bacterial community was significantly positively correlated with pH (p < 0.05). The complexity of bacterial community co-occurrence networks showed a significantly higher L than H and M, and the complexity of fungal community co-occurrence network showed a significantly lower L than H and M. The cooperative relationship of H and M in the co-occurrence networks was stronger than that of the L, and the key species of the microbial co-occurrence network were different under different water-salt gradients. Stochastic processes dominated the assembly mechanism of the microbial community structure of soil, and the explanation rates of deterministic and stochastic processes were different under different water-salt gradients, with the highest explanation rate of stochastic processes on the L accounting for more than 90%. In summary, the soil microbial community structure and assembly mechanisms significantly differed across water-salt gradients, and these findings can help provide a reference for further research on soil microbiology in arid zones.
英文关键词	arid zone microbial diversity co-occurrence network community assembly
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000978300800001
WOS关键词	BACTERIAL COMMUNITIES ; FUNGAL COMMUNITIES ; BETA DIVERSITY ; SALINITY ; BIODIVERSITY ; BIOGEOGRAPHY ; RESPONSES ; NOV.
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397849
推荐引用方式 GB/T 7714	Yang, Guang,Jiang, Lamei,Li, Wenjing,et al. Structural Characteristics and Assembly Mechanisms of Soil Microbial Communities under Water-Salt Gradients in Arid Regions[J],2023,11(4).
APA	Yang, Guang,Jiang, Lamei,Li, Wenjing,Li, Eryang,&Lv, Guanghui.(2023).Structural Characteristics and Assembly Mechanisms of Soil Microbial Communities under Water-Salt Gradients in Arid Regions.MICROORGANISMS,11(4).
MLA	Yang, Guang,et al."Structural Characteristics and Assembly Mechanisms of Soil Microbial Communities under Water-Salt Gradients in Arid Regions".MICROORGANISMS 11.4(2023).