Insights into microbial involvement in desert varnish formation retrieved from metagenomic analysis

Summary Desert varnishes are dark rock coatings observed in arid environments and might resemble Mn‐rich coatings found on Martian rocks. Their formation mechanism is not fully understood and the possible microbial involvement is under debate. In this study, we applied DNA metagenomic Shotgun sequen...

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Veröffentlicht in:	Environmental microbiology reports 2018-06, Vol.10 (3), p.264-271
Hauptverfasser:	Lang‐Yona, Naama, Maier, Stefanie, Macholdt, Dorothea S., Müller‐Germann, Isabell, Yordanova, Petya, Rodriguez‐Caballero, Emilio, Jochum, Klaus P., Al‐Amri, Abdullah, Andreae, Meinrat O., Fröhlich‐Nowoisky, Janine, Weber, Bettina
Format:	Artikel
Sprache:	eng
Schlagworte:	Actinobacteria - classification Actinobacteria - genetics Actinobacteria - isolation & purification Actinobacteria - metabolism Arid environments Arid zones Bacteria Clay - microbiology Coatings Cyanobacteria Cyanobacteria - classification Cyanobacteria - genetics Cyanobacteria - isolation & purification Cyanobacteria - metabolism Desert environments Deserts DNA sequencing Ferric Compounds - metabolism Fungi Gene sequencing Genomic analysis Habitats Hypotheses Manganese Compounds - metabolism Mars Metabolism Metagenomics Metagenomics - methods Microbial activity Microbiomes Microbiota - genetics Microorganisms Microscopy Niches Oxidation Oxides - metabolism Phylogenetics Proteobacteria - classification Proteobacteria - genetics Proteobacteria - isolation & purification Proteobacteria - metabolism Rocks Sequence Analysis, DNA - methods Soil Microbiology Transition metals Varnishes
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Zusammenfassung:	Summary Desert varnishes are dark rock coatings observed in arid environments and might resemble Mn‐rich coatings found on Martian rocks. Their formation mechanism is not fully understood and the possible microbial involvement is under debate. In this study, we applied DNA metagenomic Shotgun sequencing of varnish and surrounding soil to evaluate the composition of the microbial community and its potential metabolic function. We found that the α diversity was lower in varnish compared to soil samples (p value
ISSN:	1758-2229 1758-2229
DOI:	10.1111/1758-2229.12634