What defines a photosynthetic microbial mat in western Antarctica? DOI Creative Commons

Ricardo A. Mercado-Juárez,

Patricia M. Valdespino-Castillo,

Martín Merino Ibarra

et al.

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(3), P. e0315919 - e0315919

Published: March 5, 2025

Antarctic microbial mats, with their significant biodiversity and key role in biogeochemical cycling, were the focus of our study. We employed a metagenomic approach to analyze 14 mats from meltwater streams western Antarctica, covering Maritime, Peninsula, Dry Valleys regions. Our findings revealed that taxonomic compositional level mat communities is characterized by similar bacterial groups, diatoms being main distinguishing factor between rapidly warming Maritime Antarctica other mats. Bacteria found be predominant component all (>90%), followed Eukarya (>3%), Archaea (<1%), Viruses (<0.1%). The average abundance phyla composing included Bacteroidota (35%), Pseudomonadota (29%), Cyanobacteriota (19%), Verrucomicrobiota (3%), Bacillariophyta (2%), Planctomycetota Acidobacteriota Actinomycetota Bacillota (1%), Chloroflexota (1%). also identified some microeukaryotes could play essential roles functioning Notably, sites varied environmental characteristics, showed N-limitation, shared functional patterns.

Language: Английский

What defines a photosynthetic microbial mat in western Antarctica? DOI Creative Commons

Ricardo A. Mercado-Juárez,

Patricia M. Valdespino-Castillo,

Martín Merino Ibarra

et al.

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(3), P. e0315919 - e0315919

Published: March 5, 2025

Antarctic microbial mats, with their significant biodiversity and key role in biogeochemical cycling, were the focus of our study. We employed a metagenomic approach to analyze 14 mats from meltwater streams western Antarctica, covering Maritime, Peninsula, Dry Valleys regions. Our findings revealed that taxonomic compositional level mat communities is characterized by similar bacterial groups, diatoms being main distinguishing factor between rapidly warming Maritime Antarctica other mats. Bacteria found be predominant component all (>90%), followed Eukarya (>3%), Archaea (<1%), Viruses (<0.1%). The average abundance phyla composing included Bacteroidota (35%), Pseudomonadota (29%), Cyanobacteriota (19%), Verrucomicrobiota (3%), Bacillariophyta (2%), Planctomycetota Acidobacteriota Actinomycetota Bacillota (1%), Chloroflexota (1%). also identified some microeukaryotes could play essential roles functioning Notably, sites varied environmental characteristics, showed N-limitation, shared functional patterns.

Language: Английский

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