干旱区生态环境知识资源中心(Arid): Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases

Arid

DOI	10.1186/s40168-020-00809-w
	Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases
	Zhang, Eden 1; Thibaut, Loic M.1; Terauds, Aleks 2; Raven, Mark 3; Tanaka, Mark M.1; van Dorst, Josie 1; Wong, Sin Yin 1; Crane, Sally 1; Ferrari, Belinda C.1
通讯作者	Ferrari, Belinda C.
来源期刊	MICROBIOME
ISSN	2049-2618
出版年	2020
卷号	8 期号:1
英文摘要	Background Resident soil microbiota play key roles in sustaining the core ecosystem processes of terrestrial Antarctica, often involving unique taxa with novel functional traits. However, the full scope of biodiversity and the niche-neutral processes underlying these communities remain unclear. In this study, we combine multivariate analyses, co-occurrence networks and fitted species abundance distributions on an extensive set of bacterial, micro-eukaryote and archaeal amplicon sequencing data to unravel soil microbiome patterns of nine sites across two east Antarctic regions, the Vestfold Hills and Windmill Islands. To our knowledge, this is the first microbial biodiversity report on the hyperarid Vestfold Hills soil environment. Results Our findings reveal distinct regional differences in phylogenetic composition, abundance and richness amongst microbial taxa. Actinobacteria dominated soils in both regions, yet Bacteroidetes were more abundant in the Vestfold Hills compared to the Windmill Islands, which contained a high abundance of novel phyla. However, intra-region comparisons demonstrate greater homogeneity of soil microbial communities and measured environmental parameters between sites at the Vestfold Hills. Community richness is largely driven by a variable suite of parameters but robust associations between co-existing members highlight potential interactions and sharing of niche space by diverse taxa from all three microbial domains of life examined. Overall, non-neutral processes appear to structure the polar soil microbiomes studied here, with niche partitioning being particularly strong for bacterial communities at the Windmill Islands. Eukaryotic and archaeal communities reveal weaker niche-driven signatures accompanied by multimodality, suggesting the emergence of neutrality. Conclusion We provide new information on assemblage patterns, environmental drivers and non-random occurrences for Antarctic soil microbiomes, particularly the Vestfold Hills, where basic diversity, ecology and life history strategies of resident microbiota are largely unknown. Greater understanding of these basic ecological concepts is a pivotal step towards effective conservation management.
英文关键词	Antarctica Soil Microbiome Bacteria Eukarya Archaea Conservation Ecology
类型	Article
语种	英语
国家	Australia
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000521362700001
WOS关键词	SPECIES ABUNDANCE DISTRIBUTIONS ; AMMONIA-OXIDIZING ARCHAEA ; DRY VALLEYS ; DIVERSITY ; POLAR ; REDUNDANCY ; PATTERNS ; ECOLOGY ; HISTORY ; FUNGAL
WOS类目	Microbiology
WOS研究方向	Microbiology
来源机构	Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315170
作者单位	1.Univ New South Wales, Sch Biotechnol & Biomol Sci, Sydney, NSW 2052, Australia; 2.Antarctic Conservat & Management, Dept Environm, Australian Antarctic Div, 203 Channel Highway, Kingston, Tas 7050, Australia; 3.CSIRO, Mineral Serv, Urrbrae, SA 5064, Australia
推荐引用方式 GB/T 7714	Zhang, Eden,Thibaut, Loic M.,Terauds, Aleks,et al. Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases[J]. Commonwealth Scientific and Industrial Research Organisation,2020,8(1).
APA	Zhang, Eden.,Thibaut, Loic M..,Terauds, Aleks.,Raven, Mark.,Tanaka, Mark M..,...&Ferrari, Belinda C..(2020).Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases.MICROBIOME,8(1).
MLA	Zhang, Eden,et al."Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases".MICROBIOME 8.1(2020).