气候变化领域集成服务门户(CCPortal): Biological Interactions and Environmental Influences Shift Microeukaryotes in Permafrost Active Layer Soil Across the Qinghai-Tibet Plateau

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DOI	10.1007/s00248-023-02280-0
	Biological Interactions and Environmental Influences Shift Microeukaryotes in Permafrost Active Layer Soil Across the Qinghai-Tibet Plateau
	Ren, Ze; Ye, Shudan; Li, Hongxuan; Huang, Xilei; Chen, Luyao; Cao, Shengkui; Chen, Tao
发表日期	2023
ISSN	0095-3628
EISSN	1432-184X
起始页码	2756
结束页码	2769
卷号	86 期号:4
英文摘要	Permafrost active layer soils are harsh environments with thaw/freeze cycles and sub-zero temperatures, harboring diverse microorganisms. However, the distribution patterns, assembly mechanism, and driving forces of soil microeukaryotes in permafrost remain largely unknown. In this study, we investigated microeukaryotes in permafrost active layer across the Qinghai-Tibet Plateau (QTP) using 18S rRNA gene sequencing. The results showed that the microbial eukaryotic communities were dominated by Nematozoa, Ciliophora, Ascomycota, Cercozoa, Arthropoda, and Basidiomycota in terms of relative abundance and operational taxonomic unit (OTU) richness. Nematozoa had the highest relative abundance, while Ciliophora had the highest OTU richness. These phyla had strong interactions between each other. Their alpha diversity and community structure were differently influenced by the factors associated to location, climate, and soil properties, particularly the soil properties. Significant but weak distance-decay relationships with different slopes were established for the communities of these dominant phyla, except for Basidiomycota. According to the null model, community assemblies of Nematozoa and Cercozoa were dominated by heterogeneous selection, Ciliophora and Ascomycota were dominated by dispersal limitation, while Arthropoda and Basidiomycota were highly dominated by non-dominant processes. The assembly mechanisms can be jointly explained by biotic interactions, organism treats, and environmental influences. Modules in the co-occurrence network of the microeukaryotes were composed by members from different taxonomic groups. These modules also had interactions and responded to different environmental factors, within which, soil properties had strong influences on these modules. The results suggested the importance of biological interactions and soil properties in structuring microbial eukaryotic communities in permafrost active layer soil across the QTP.
关键词	Community assembly Microeukaryotes Active layer Distance-decay Co-occurrence network
英文关键词	FUNCTIONAL DIVERSITY; COMMUNITY STRUCTURE; ASSEMBLY PROCESSES; NETWORK ANALYSIS; DISTANCE-DECAY; CLIMATE-CHANGE; PATTERNS; BIOGEOGRAPHY; DEGRADATION; NEMATODES
WOS研究方向	Ecology ; Marine & Freshwater Biology ; Microbiology
WOS记录号	WOS:001042788900002
来源期刊	MICROBIAL ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283203
作者单位	Chinese Academy of Sciences; Nanjing Institute of Geography & Limnology, CAS; Beijing Normal University; Beijing Normal University; Qinghai Normal University; Lanzhou University
推荐引用方式 GB/T 7714	Ren, Ze,Ye, Shudan,Li, Hongxuan,et al. Biological Interactions and Environmental Influences Shift Microeukaryotes in Permafrost Active Layer Soil Across the Qinghai-Tibet Plateau[J],2023,86(4).
APA	Ren, Ze.,Ye, Shudan.,Li, Hongxuan.,Huang, Xilei.,Chen, Luyao.,...&Chen, Tao.(2023).Biological Interactions and Environmental Influences Shift Microeukaryotes in Permafrost Active Layer Soil Across the Qinghai-Tibet Plateau.MICROBIAL ECOLOGY,86(4).
MLA	Ren, Ze,et al."Biological Interactions and Environmental Influences Shift Microeukaryotes in Permafrost Active Layer Soil Across the Qinghai-Tibet Plateau".MICROBIAL ECOLOGY 86.4(2023).