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Scientific Reports, volume 12, issue 1, publication number 21967

Fast-growing Arctic Fe–Mn deposits from the Kara Sea as the refuges for cosmopolitan marine microorganisms

Shulga Natalia ¹

Abramov Sergey ²

Klyukina Alexandra ³

Ryazantsev Konstantin ⁴

Gavrilov Sergey ³

Hide authors affiliations Show authors affiliations: 4 affiliations

Shirshov institute of Oceanology, Russian Academy of Sciences, Moscow, Russia |

Department of Environmental Microbiology, Institute of Sanitary Engineering, Water Quality and Solid Waste Management, University of Stuttgart, Stuttgart, Germany |

Winogradsky Institute of Microbiology, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, Russia

Winogradsky Institute of Microbiology of the Russian Academy of Sciences

Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences

⁴

Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, moscow, Russia |

Publication type: Journal Article

Publication date: 2022-12-20

Springer Nature

Journal: Scientific Reports

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Impact factor: 4.6

ISSN: 20452322

DOI: 10.1038/s41598-022-23449-6

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Abstract

The impact of biomineralization and redox processes on the formation and growth of ferromanganese deposits in the World Ocean remains understudied. This problem is particularly relevant for the Arctic marine environment where sharp seasonal variations of temperature, redox conditions, and organic matter inflow significantly impact the biogenic and abiotic pathways of ferromanganese deposits formation. The microbial communities of the fast-growing Arctic Fe–Mn deposits have not been reported so far. Here, we describe the microbial diversity, structure and chemical composition of nodules, crust and their underlying sediments collected from three different sites of the Kara Sea. Scanning electron microscopy revealed a high abundance of microfossils and biofilm-like structures within the nodules. Phylogenetic profiling together with redundancy and correlation analyses revealed a positive selection for putative metal-reducers (Thermodesulfobacteriota), iron oxidizers (Hyphomicrobiaceae and Scalinduaceae), and Fe-scavenging Nitrosopumilaceae or Magnetospiraceae in the microenvironments of the Fe–Mn deposits from their surrounding benthic microbial populations. We hypothesize that in the Kara Sea, the nodules provide unique redox-stable microniches for cosmopolitan benthic marine metal-cycling microorganisms in an unsteady environment, thus focusing the overall geochemical activity of nodule-associated microbial communities and accelerating processes of ferromanganese deposits formation to uniquely high rates.

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Arctic Science	Arctic Science, 1, 50% Arctic Science 1 publication, 50%
Quaternary	Quaternary, 1, 50% Quaternary 1 publication, 50%
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Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 1, 50% Multidisciplinary Digital Publishing Institute (MDPI) 1 publication, 50%
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Shulga N. et al. Fast-growing Arctic Fe–Mn deposits from the Kara Sea as the refuges for cosmopolitan marine microorganisms // Scientific Reports. 2022. Vol. 12. No. 1. 21967

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Shulga N., Abramov S., Klyukina A., Ryazantsev K., Gavrilov S. Fast-growing Arctic Fe–Mn deposits from the Kara Sea as the refuges for cosmopolitan marine microorganisms // Scientific Reports. 2022. Vol. 12. No. 1. 21967

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TY - JOUR

DO - 10.1038/s41598-022-23449-6

UR - https://doi.org/10.1038%2Fs41598-022-23449-6

TI - Fast-growing Arctic Fe–Mn deposits from the Kara Sea as the refuges for cosmopolitan marine microorganisms

T2 - Scientific Reports

AU - Shulga, Natalia

AU - Abramov, Sergey

AU - Klyukina, Alexandra

AU - Ryazantsev, Konstantin

AU - Gavrilov, Sergey

PY - 2022

DA - 2022/12/20 00:00:00

PB - Springer Nature

IS - 1

VL - 12

SN - 2045-2322

ER -

BibTex

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@article{2022_Shulga,

author = {Natalia Shulga and Sergey Abramov and Alexandra Klyukina and Konstantin Ryazantsev and Sergey Gavrilov},

title = {Fast-growing Arctic Fe–Mn deposits from the Kara Sea as the refuges for cosmopolitan marine microorganisms},

journal = {Scientific Reports},

year = {2022},

volume = {12},

publisher = {Springer Nature},

month = {dec},

url = {https://doi.org/10.1038%2Fs41598-022-23449-6},

number = {1},

doi = {10.1038/s41598-022-23449-6}

}

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Publisher

Springer Nature

Journal

Scientific Reports

Quartile SCImago

Quartile WOS

Impact factor

4.6

ISSN

20452322 (Print)

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