气候变化领域集成服务门户(CCPortal): Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf

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DOI	10.1038/s41467-021-27769-5
	Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf
	Martínez-Pérez C.; Greening C.; Bay S.K.; Lappan R.J.; Zhao Z.; De Corte D.; Hulbe C.; Ohneiser C.; Stevens C.; Thomson B.; Stepanauskas R.; González J.M.; Logares R.; Herndl G.J.; Morales S.E.; Baltar F.
发表日期	2022
ISSN	2041-1723
卷号	13 期号:1
英文摘要	Throughout coastal Antarctica, ice shelves separate oceanic waters from sunlight by hundreds of meters of ice. Historical studies have detected activity of nitrifying microorganisms in oceanic cavities below permanent ice shelves. However, little is known about the microbial composition and pathways that mediate these activities. In this study, we profiled the microbial communities beneath the Ross Ice Shelf using a multi-omics approach. Overall, beneath-shelf microorganisms are of comparable abundance and diversity, though distinct composition, relative to those in the open meso- and bathypelagic ocean. Production of new organic carbon is likely driven by aerobic lithoautotrophic archaea and bacteria that can use ammonium, nitrite, and sulfur compounds as electron donors. Also enriched were aerobic organoheterotrophic bacteria capable of degrading complex organic carbon substrates, likely derived from in situ fixed carbon and potentially refractory organic matter laterally advected by the below-shelf waters. Altogether, these findings uncover a taxonomically distinct microbial community potentially adapted to a highly oligotrophic marine environment and suggest that ocean cavity waters are primarily chemosynthetically-driven systems. © 2022, The Author(s).
语种	英语
scopus关键词	abundance; groundwater-seawater interaction; ice shelf; marine environment; microbial community; microorganism; organic matter; seawater; species diversity; Antarctica; Ross Ice Shelf; West Antarctica; RNA 16S; sea water; Antarctica; archaeon; bacterium; carbon cycle; classification; genetics; ice cover; metabolism; microbiology; microflora; phylogeny; sediment; Antarctic Regions; Archaea; Bacteria; Carbon Cycle; Geologic Sediments; Ice Cover; Microbiota; Phylogeny; RNA, Ribosomal, 16S; Seawater
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250542
作者单位	Department of Functional and Evolutionary Ecology, University of Vienna, Djerassiplatz 1, Vienna, 1030, Austria; Centre for Microbiology and Environmental Systems Science, Division of Microbial Ecology, University of Vienna, Djerassiplatz 1, Vienna, 1030, Austria; Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia; Securing Antarctica’s Environmental Future, Monash University, Clayton, VIC 3800, Australia; Institute for Chemistry and Biology of the Marine Environment, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany; School of Surveying, University of Otago, Dunedin, New Zealand; Department of Geology, University of Otago, Dunedin, New Zealand; National Institute of Water and Atmospheric Research, Greta Point, Wellington, 6021, New Zealand; Department of Physics, University of Auckland, Auckland, New Zealand; Department of Marine Sciences, University of Otago, Dunedin, New Zealand; Bigelow Laboratory for Ocean Sciences, East Boothba...
推荐引用方式 GB/T 7714	Martínez-Pérez C.,Greening C.,Bay S.K.,et al. Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf[J],2022,13(1).
APA	Martínez-Pérez C..,Greening C..,Bay S.K..,Lappan R.J..,Zhao Z..,...&Baltar F..(2022).Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf.Nature Communications,13(1).
MLA	Martínez-Pérez C.,et al."Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf".Nature Communications 13.1(2022).