Background: Rock-dwelling microorganisms are key players in ecosystem functioning of Antarctic ice free-areas. Yet, little is known about their diversity and ecology, and further still, viruses in these communities have been largely unexplored despite important roles related to host metabolism and nutrient cycling. To begin to address this, we present a large-scale viral catalog from Antarctic rock microbial communities. Results: We performed metagenomic analyses on rocks from across Antarctica representing a broad range of environmental and spatial conditions, and which resulted in a predicted viral catalog comprising > 75,000 viral operational taxonomic units (vOTUS). We found largely undescribed, highly diverse and spatially structured virus communities which had predicted auxiliary metabolic genes (AMGs) with functions indicating that they may be potentially influencing bacterial adaptation and biogeochemistry. Conclusion: This catalog lays the foundation for expanding knowledge of virosphere diversity, function, spatial ecology, and dynamics in extreme environments. This work serves as a step towards exploring adaptability of microbial communities in the face of a changing climate. Video Abstract.

Ettinger, C.L.; Saunders, M.; Selbmann, L.; Delgado-Baquerizo, M.; Donati, C.; Albanese, D.; Roux, S.; Tringe, S.; Pennacchio, C.; Del Rio, T.G.; Stajich, J.E.; Coleine, C. (2023-05-08). Highly diverse and unknown viruses may enhance Antarctic endoliths' adaptability. MICROBIOME, 11 (1): 103. doi: 10.1186/s40168-023-01554-6 handle: https://hdl.handle.net/10449/83877

Highly diverse and unknown viruses may enhance Antarctic endoliths' adaptability

Donati, Claudio;Albanese, Davide;
2023-05-08

Abstract

Background: Rock-dwelling microorganisms are key players in ecosystem functioning of Antarctic ice free-areas. Yet, little is known about their diversity and ecology, and further still, viruses in these communities have been largely unexplored despite important roles related to host metabolism and nutrient cycling. To begin to address this, we present a large-scale viral catalog from Antarctic rock microbial communities. Results: We performed metagenomic analyses on rocks from across Antarctica representing a broad range of environmental and spatial conditions, and which resulted in a predicted viral catalog comprising > 75,000 viral operational taxonomic units (vOTUS). We found largely undescribed, highly diverse and spatially structured virus communities which had predicted auxiliary metabolic genes (AMGs) with functions indicating that they may be potentially influencing bacterial adaptation and biogeochemistry. Conclusion: This catalog lays the foundation for expanding knowledge of virosphere diversity, function, spatial ecology, and dynamics in extreme environments. This work serves as a step towards exploring adaptability of microbial communities in the face of a changing climate. Video Abstract.
Settore BIO/19 - MICROBIOLOGIA GENERALE
8-mag-2023
Ettinger, C.L.; Saunders, M.; Selbmann, L.; Delgado-Baquerizo, M.; Donati, C.; Albanese, D.; Roux, S.; Tringe, S.; Pennacchio, C.; Del Rio, T.G.; Stajich, J.E.; Coleine, C. (2023-05-08). Highly diverse and unknown viruses may enhance Antarctic endoliths' adaptability. MICROBIOME, 11 (1): 103. doi: 10.1186/s40168-023-01554-6 handle: https://hdl.handle.net/10449/83877
File in questo prodotto:
File Dimensione Formato  
2023 M Donati.pdf

accesso aperto

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Creative commons
Dimensione 1.17 MB
Formato Adobe PDF
1.17 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10449/83877
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 1
social impact