干旱区生态环境知识资源中心(Arid): Comparison of bacterial and fungal diversity and network connectivity in karst and non-karst forests in southwest China

Arid

DOI	10.1016/j.scitotenv.2022.153179
	Comparison of bacterial and fungal diversity and network connectivity in karst and non-karst forests in southwest China
	Xiao, Dan; He, Xunyang; Zhang, Wei; Hu, Peilei; Sun, Mingming; Wang, Kelin
通讯作者	Zhang, W ; Wang, KL
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	822
英文摘要	ABS T R A C T Microbial communities contribute to sustaining the function of terrestrial ecosystems and are influenced by soil type and climate gradients. The effects of karst and non-karst soils on bacterial and fungal profiles for seven climate gradi-ents were assessed to better understand bacterial and fungal diversity and community composition in response to soil type with changes in soil physicochemical properties under different temperatures and precipitations. Bacterial and fungal abundance, diversity, and community composition differed between karst and non-karst forests. Bacterial and fungal richness, Shannon index, and bacterial abundance in karst forests were higher than non-karst forests, but the fungal abundance was lower. Mean annual temperature was negatively correlated with bacterial diversity in the karst forest and fungal abundance in karst and non-karst forests. The community composition of bacteria and fungi dif-fered among these two soil types. The karst forest had greater connectivity among bacterial and fungal communities than non-karst forests. The bacterial members of Acidobacteria, Proteobacteria, Actinobacteria, and fungal groups of Ascomycota and Basidiomycota were mainly connected with other taxa in the network, implying that taxa were asso-ciated with highly functional potential. The relative abundance of Actinobacteria and Ascomycota was higher in karst than in non-karst forests. Proteobacteria and Basidiomycota showed the opposite results. A random forest and multiple regression tree analyses revealed that soil properties, specifically pH, calcium, and total nitrogen, were the main factors influencing the variation in bacterial and fungal profiles between karst and non-karst forests. This study provides novel evidence that the abundant microbial taxa were kinless hubs in co-occurrence patterns. Controlling complex networks of species interactions may contribute to improving soil nutrient processes rather than microbial diversity, enhancing our understanding of developing sustainable recovery strategies in fragile ecosystems.
英文关键词	Bacterial community Fungal community Co-occurrence network Soil type Climate gradient Forest ecosystem
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000787328500006
WOS关键词	SOIL MICROBIAL BIOMASS ; COMMUNITY COMPOSITION ; BIOGEOGRAPHICAL DISTRIBUTION ; ROCKY DESERTIFICATION ; ORGANIC-CARBON ; PH ; NUTRIENT ; CALCIUM ; GROWTH ; MINERALIZATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394354
推荐引用方式 GB/T 7714	Xiao, Dan,He, Xunyang,Zhang, Wei,et al. Comparison of bacterial and fungal diversity and network connectivity in karst and non-karst forests in southwest China[J],2022,822.
APA	Xiao, Dan,He, Xunyang,Zhang, Wei,Hu, Peilei,Sun, Mingming,&Wang, Kelin.(2022).Comparison of bacterial and fungal diversity and network connectivity in karst and non-karst forests in southwest China.SCIENCE OF THE TOTAL ENVIRONMENT,822.
MLA	Xiao, Dan,et al."Comparison of bacterial and fungal diversity and network connectivity in karst and non-karst forests in southwest China".SCIENCE OF THE TOTAL ENVIRONMENT 822(2022).