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Journal Article

Exploring microbial diversity in Greenland Ice Sheet supraglacial habitats through culturing-dependent and -independent approaches

Authors

Jaarsma,  Ate H.
External Organizations;

Sipes,  Katie
External Organizations;

Zervas ,  Athanasios
External Organizations;

Campuzano Jiménez,  Francisco
External Organizations;

Ellegaard-Jensen,  Lea
External Organizations;

Thøgersen,  Mariane S
External Organizations;

Stougaard,  Peter
External Organizations;

/persons/resource/benning

Benning,  Liane G.
3.5 Interface Geochemistry, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Tranter,  Martyn
External Organizations;

Anesio,  Alexandre M.
External Organizations;

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Fulltext (public)

5022867.pdf
(Publisher version), 3MB

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Citation

Jaarsma, A. H., Sipes, K., Zervas, A., Campuzano Jiménez, F., Ellegaard-Jensen, L., Thøgersen, M. S., Stougaard, P., Benning, L. G., Tranter, M., Anesio, A. M. (2023): Exploring microbial diversity in Greenland Ice Sheet supraglacial habitats through culturing-dependent and -independent approaches. - FEMS Microbiology Ecology, 99, 11, fiad119.
https://doi.org/10.1093/femsec/fiad119


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022867
Abstract
The microbiome of Greenland Ice Sheet supraglacial habitats is still underinvestigated, and as a result there is a lack of representative genomes from these environments. In this study, we investigated the supraglacial microbiome through a combination of culturing-dependent and -independent approaches. We explored ice, cryoconite, biofilm, and snow biodiversity to answer: (1) how microbial diversity differs between supraglacial habitats, (2) if obtained bacterial genomes reflect dominant community members, and (3) how culturing versus high throughput sequencing changes our observations of microbial diversity in supraglacial habitats. Genomes acquired through metagenomic sequencing (133 high-quality MAGs) and whole genome sequencing (73 bacterial isolates) were compared to the metagenome assemblies to investigate abundance within the total environmental DNA. Isolates obtained in this study were not dominant taxa in the habitat they were sampled from, in contrast to the obtained MAGs. We demonstrate here the advantages of using metagenome SSU rRNA genes to reflect whole-community diversity. Additionally, we demonstrate a proof-of-concept of the application of in situ culturing in a supraglacial setting.