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Connectivity of Fennoscandian Shield terrestrial deep biosphere microbiomes with surface communities

Westmeijer, George and Mehrshad, Maliheh and Turner, Stephanie and Alakangas, Linda and Sachpazidou, Varvara and Bunse, Carina and Pinhassi, Jarone and Ketzer, Marcelo and Astrom, Mats and Bertilsson, Stefan and Dopson, Mark (2022). Connectivity of Fennoscandian Shield terrestrial deep biosphere microbiomes with surface communities. Communications biology. 5 :1 , 37
[Research article]

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Abstract

The deep biosphere is an energy constrained ecosystem yet fosters diverse microbial communities that are key in biogeochemical cycling. Whether microbial communities in deep biosphere groundwaters are shaped by infiltration of allochthonous surface microorganisms or the evolution of autochthonous species remains unresolved. In this study, 16S rRNA gene amplicon analyses showed that few groups of surface microbes infiltrated deep biosphere groundwaters at the aspo Hard Rock Laboratory, Sweden, but that such populations constituted up to 49% of the microbial abundance. The dominant persisting phyla included Patescibacteria, Proteobacteria, and Epsilonbacteraeota. Despite the hydrological connection of the Baltic Sea with the studied groundwaters, infiltrating microbes predominantly originated from deep soil groundwater. Most deep biosphere groundwater populations lacked surface representatives, suggesting that they have evolved from ancient autochthonous populations. We propose that deep biosphere groundwater communities in the Fennoscandian Shield consist of selected infiltrated and indigenous populations adapted to the prevailing conditions.Westmeijer et al. employ high-throughput sequencing to investigate the connection between deep biosphere groundwaters and surface microbial communities. They suggest that the microbial communities of deep biosphere groundwaters in the Fennoscandian Shield are mostly comprised of autochthonous species, rather than migratory surface representatives.

Authors/Creators:Westmeijer, George and Mehrshad, Maliheh and Turner, Stephanie and Alakangas, Linda and Sachpazidou, Varvara and Bunse, Carina and Pinhassi, Jarone and Ketzer, Marcelo and Astrom, Mats and Bertilsson, Stefan and Dopson, Mark
Title:Connectivity of Fennoscandian Shield terrestrial deep biosphere microbiomes with surface communities
Series Name/Journal:Communications biology
Year of publishing :2022
Volume:5
Number:1
Article number:37
Number of Pages:8
Publisher:NATURE PORTFOLIO
ISSN:2399-3642
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
URN:NBN:urn:nbn:se:slu:epsilon-p-116191
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116191
Additional ID:
Type of IDID
DOI10.1038/s42003-021-02980-8
Web of Science (WoS)000741646700012
ID Code:27190
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Aquatic Sciences and Assessment
Deposited By: SLUpub Connector
Deposited On:23 Feb 2022 14:25
Metadata Last Modified:23 Feb 2022 14:31

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