Genomic evidence of functional diversity in DPANN archaea, from oxic species to anoxic vampiristic consortia
DPANN archaea account for half of the archaeal diversity of the biosphere, but with few cultivated representatives, their metabolic potential and environmental functions are poorly understood. The extreme geochemical and environmental conditions in meromictic ice-capped Lake A, in the Canadian High...
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ftpubmed:oai:pubmedcentral.nih.gov:9723730 2023-05-15T15:05:57+02:00 Genomic evidence of functional diversity in DPANN archaea, from oxic species to anoxic vampiristic consortia Vigneron, Adrien Cruaud, Perrine Lovejoy, Connie Vincent, Warwick F. 2022-01-20 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723730/ https://doi.org/10.1038/s43705-022-00088-6 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723730/ http://dx.doi.org/10.1038/s43705-022-00088-6 © Crown 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. (https://creativecommons.org/licenses/by/4.0/) CC-BY ISME Commun Article Text 2022 ftpubmed https://doi.org/10.1038/s43705-022-00088-6 2023-01-08T01:51:29Z DPANN archaea account for half of the archaeal diversity of the biosphere, but with few cultivated representatives, their metabolic potential and environmental functions are poorly understood. The extreme geochemical and environmental conditions in meromictic ice-capped Lake A, in the Canadian High Arctic, provided an isolated, stratified model ecosystem to resolve the distribution and metabolism of uncultured aquatic DPANN archaea living across extreme redox and salinity gradients, from freshwater oxygenated conditions, to saline, anoxic, sulfidic waters. We recovered 28 metagenome-assembled genomes (MAGs) of DPANN archaea that provided genetic insights into their ecological function. Thiosulfate oxidation potential was detected in aerobic Woesearchaeota, whereas diverse metabolic functions were identified in anaerobic DPANN archaea, including degradation and fermentation of cellular compounds, and sulfide and polysulfide reduction. We also found evidence for “vampiristic” metabolism in several MAGs, with genes coding for pore-forming toxins, peptidoglycan degradation, and RNA scavenging. The vampiristic MAGs co-occurred with other DPANNs having complementary metabolic capacities, leading to the possibility that DPANN form interspecific consortia that recycle microbial carbon, nutrients and complex molecules through a DPANN archaeal shunt, adding hidden novel complexity to anaerobic microbial food webs. Text Arctic PubMed Central (PMC) Arctic ISME Communications 2 1 |
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Article Vigneron, Adrien Cruaud, Perrine Lovejoy, Connie Vincent, Warwick F. Genomic evidence of functional diversity in DPANN archaea, from oxic species to anoxic vampiristic consortia |
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DPANN archaea account for half of the archaeal diversity of the biosphere, but with few cultivated representatives, their metabolic potential and environmental functions are poorly understood. The extreme geochemical and environmental conditions in meromictic ice-capped Lake A, in the Canadian High Arctic, provided an isolated, stratified model ecosystem to resolve the distribution and metabolism of uncultured aquatic DPANN archaea living across extreme redox and salinity gradients, from freshwater oxygenated conditions, to saline, anoxic, sulfidic waters. We recovered 28 metagenome-assembled genomes (MAGs) of DPANN archaea that provided genetic insights into their ecological function. Thiosulfate oxidation potential was detected in aerobic Woesearchaeota, whereas diverse metabolic functions were identified in anaerobic DPANN archaea, including degradation and fermentation of cellular compounds, and sulfide and polysulfide reduction. We also found evidence for “vampiristic” metabolism in several MAGs, with genes coding for pore-forming toxins, peptidoglycan degradation, and RNA scavenging. The vampiristic MAGs co-occurred with other DPANNs having complementary metabolic capacities, leading to the possibility that DPANN form interspecific consortia that recycle microbial carbon, nutrients and complex molecules through a DPANN archaeal shunt, adding hidden novel complexity to anaerobic microbial food webs. |
format |
Text |
author |
Vigneron, Adrien Cruaud, Perrine Lovejoy, Connie Vincent, Warwick F. |
author_facet |
Vigneron, Adrien Cruaud, Perrine Lovejoy, Connie Vincent, Warwick F. |
author_sort |
Vigneron, Adrien |
title |
Genomic evidence of functional diversity in DPANN archaea, from oxic species to anoxic vampiristic consortia |
title_short |
Genomic evidence of functional diversity in DPANN archaea, from oxic species to anoxic vampiristic consortia |
title_full |
Genomic evidence of functional diversity in DPANN archaea, from oxic species to anoxic vampiristic consortia |
title_fullStr |
Genomic evidence of functional diversity in DPANN archaea, from oxic species to anoxic vampiristic consortia |
title_full_unstemmed |
Genomic evidence of functional diversity in DPANN archaea, from oxic species to anoxic vampiristic consortia |
title_sort |
genomic evidence of functional diversity in dpann archaea, from oxic species to anoxic vampiristic consortia |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723730/ https://doi.org/10.1038/s43705-022-00088-6 |
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ISME Commun |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9723730/ http://dx.doi.org/10.1038/s43705-022-00088-6 |
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© Crown 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. (https://creativecommons.org/licenses/by/4.0/) |
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https://doi.org/10.1038/s43705-022-00088-6 |
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