Evidence map›Paper›PMID 31606813›Full record

ArticleExtremophiles : life under extreme conditions2020

Prokaryotic community in Pleistocene ice wedges of Mammoth Mountain.

Andrey Rakitin, Aleksey Beletsky, Andrey Mardanov, Natalya Surgucheva, Vladimir Sorokin, Mariya Cherbunina, Anatoli Brouchkov, Andrey Mulyukin, Svetlana Filippova

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Article in Extremophiles : life under extreme conditions, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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9 authors.

Andrey RakitinInstitute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Prosp 33-2, Moscow, 119071, Russia. rakitin@biengi.ac.ru.
Aleksey BeletskyInstitute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Prosp 33-2, Moscow, 119071, Russia.
Andrey MardanovInstitute of Bioengineering, Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Prosp 33-2, Moscow, 119071, Russia.
Natalya SurguchevaWinogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Prosp 33-2, Moscow, 119071, Russia.
Vladimir SorokinWinogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Prosp 33-2, Moscow, 119071, Russia.
Mariya CherbuninaMoscow State University, Leninskiye Gory 1, Moscow, 11999, Russia.
Anatoli BrouchkovMoscow State University, Leninskiye Gory 1, Moscow, 11999, Russia.
Andrey MulyukinWinogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Prosp 33-2, Moscow, 119071, Russia.
Svetlana FilippovaWinogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Prosp 33-2, Moscow, 119071, Russia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ice wedges differ from other types of surface and underground glacial bodies and are widely spread in perennially frozen sub-Arctic regions, but the bacterial and archaeal diversity in these permafrost features remains poorly studied. Here, we compared the prokaryotic community composition in the active layer and ancient, 13-19 kyr BP and ~ 40 kyr BP, ice wedge horizons from the same exposure profile of the Mammoth Mountain, using pyrosequencing 16S rRNA gene. The most abundant OTUs in the active layer were affiliated with Acidobacteria (31.81%) followed by Actinobacteria (18.29%), Proteobacteria (18.14%), Gemmatimonadetes (7.3%), Parcubacteria (7.13%) and Bacteroidetes (6.49%). The prokaryotic community in 13-19 kyr BP ice wedge differed at the phylum level by the predominance of Actinobacteria (29.15%) over Acidobacteria (19.52%), Proteobacteria (18.45%), Verrumicrobia (5.88%), Firmicutes (2.98%) and Gemmatimonadetes (2.87%). In contrast, the oldest (~ 40 kyr BP) ice wedge prokaryotic community was rather poor, and only three phyla Firmicutes (54.48%), Proteobacteria (31.42%) and Bacteroidetes (7.92%) constituted the major fraction of reads. Archaeal sequences contributed with no more than 0.6% to total reads in all studied samples. Apparently, the Mammoth Mountain exposure profile harbors insular microbial communities with specific structure that reflects the stratigraphy, properties and age.

Indexed as

MammothsAnimalsArchaeaArctic RegionsIcePhylogenyRNA, Ribosomal, 16SSoil MicrobiologyIceRNA, Ribosomal, 16SIce wedgeMammoth mountainMicrobial communityPermafrostPyrosequencing

Identifiers

PMID31606813

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.