干旱区生态环境知识资源中心(Arid): Endolithic Bacterial Diversity in Lichen-Dominated Communities Is Shaped by Sun Exposure in McMurdo Dry Valleys, Antarctica

Arid

DOI	10.1007/s00248-021-01769-w
	Endolithic Bacterial Diversity in Lichen-Dominated Communities Is Shaped by Sun Exposure in McMurdo Dry Valleys, Antarctica
	Mezzasoma, Ambra; Coleine, Claudia; Sannino, Ciro; Selbmann, Laura
通讯作者	Sannino, C (corresponding author), Univ Perugia, Dept Agr Food & Environm Sci, Borgo XX Giugno 74, I-06121 Perugia, Italy.
来源期刊	MICROBIAL ECOLOGY
ISSN	0095-3628
EISSN	1432-184X
出版年	2021-06
英文摘要	The diversity and composition of endolithic bacterial diversity of several locations in McMurdo Dry Valleys (Continental Antarctica) were explored using amplicon sequencing, targeting the V3 and V4 of the 16S region. Despite the increasing interest in edaphic factors that drive bacterial community composition in Antarctic rocky communities, few researchers focused attention on the direct effects of sun exposure on bacterial diversity; we herein reported significant differences in the northern and southern communities. The analysis of beta-diversity showed significant differences among sampled localities. For instance, the most abundant genera found in the north-exposed rocks were Rhodococcus and Blastococcus in Knobhead Mt.; Ktedonobacter and Cyanobacteria Family I Group I in Finger Mt.; Rhodococcus and Endobacter in University Valley; and Segetibacter and Tetrasphaera in Siegfried Peak samples. In south-exposed rocks, instead, the most abundant genera were Escherichia/Shigella and Streptococcus in Knobhead Mt.; Ktedonobacter and Rhodococcus in Finger Mt.; Ktedonobacter and Roseomonas in University Valley; and Blastocatella, Cyanobacteria Family I Group I and Segetibacter in Siegfried Peak. Significant biomarkers, detected by the Linear discriminant analysis Effect Size, were also found among north- and south-exposed communities. Besides, the large number of positive significant co-occurrences may suggest a crucial role of positive associations over competitions under the harsher conditions where these rock-inhabiting microorganisms spread. Although the effect of geographic distances in these extreme environments play a significant role in shaping biodiversity, the study of an edaphic factor, such as solar exposure, adds an important contribution to the mosaic of microbial biodiversity of Antarctic bacterial cryptoendolithic communities.
英文关键词	Antarctic cryptoendolithic communities Bacteria Southern Victoria Land Sun exposure Extreme environments
类型	Article ; Early Access
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000657567300002
WOS关键词	CRYPTOENDOLITHIC MICROBIAL ENVIRONMENT ; LAKE UNTERSEE ; VICTORIA LAND ; ROSS DESERT ; SP NOV. ; SOIL ; ROCK ; KTEDONOBACTERIA ; BIODIVERSITY ; REVEALS
WOS类目	Ecology ; Marine & Freshwater Biology ; Microbiology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352396
作者单位	[Mezzasoma, Ambra; Sannino, Ciro] Univ Perugia, Dept Agr Food & Environm Sci, Borgo XX Giugno 74, I-06121 Perugia, Italy; [Coleine, Claudia; Selbmann, Laura] Univ Tuscia, Dept Ecol & Biol Sci, Viterbo, Italy; [Selbmann, Laura] Italian Antarctic Natl Museum MNA, Mycol Sect, Genoa, Italy
推荐引用方式 GB/T 7714	Mezzasoma, Ambra,Coleine, Claudia,Sannino, Ciro,et al. Endolithic Bacterial Diversity in Lichen-Dominated Communities Is Shaped by Sun Exposure in McMurdo Dry Valleys, Antarctica[J],2021.
APA	Mezzasoma, Ambra,Coleine, Claudia,Sannino, Ciro,&Selbmann, Laura.(2021).Endolithic Bacterial Diversity in Lichen-Dominated Communities Is Shaped by Sun Exposure in McMurdo Dry Valleys, Antarctica.MICROBIAL ECOLOGY.
MLA	Mezzasoma, Ambra,et al."Endolithic Bacterial Diversity in Lichen-Dominated Communities Is Shaped by Sun Exposure in McMurdo Dry Valleys, Antarctica".MICROBIAL ECOLOGY (2021).