Atmospheric chemosynthesis is phylogenetically and geographically widespread and contributes significantly to carbon fixation throughout cold deserts
DATA AVAILABILITY : Next generation sequencing data that supports the findings of this study have been deposited in GenBank with the accession code PRJNA664610. All other data supporting the findings of this study are available in the article/Supplementary Information. Cold desert soil microbiomes t...
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Online Access: | http://hdl.handle.net/2263/93459 https://doi.org/10.1038/s41396-022-01298-5 |
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ftunivpretoria:oai:repository.up.ac.za:2263/93459 2023-12-24T10:10:02+01:00 Atmospheric chemosynthesis is phylogenetically and geographically widespread and contributes significantly to carbon fixation throughout cold deserts Ray, Angelique E. Zaugg, Julian Benaud, Nicole Chelliah, Devan S. Bay, Sean Wong, Hon Lun Leung, Pok Man Ji, Mukan Terauds, Aleks Montgomery, Kate Greening, Chris Cowan, Don A. Kong, Weidong Williams, Timothy J. Hugenholtz, Philip Ferrari, Belinda C. 2022-11 application/pdf image/tiff image/png application/vnd.openxmlformats-officedocument.wordprocessingml.document application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/octet-stream http://hdl.handle.net/2263/93459 https://doi.org/10.1038/s41396-022-01298-5 en eng Springer Nature 1751-7362 (print) 1751-7370 (online) doi:10.1038/s41396-022-01298-5 http://hdl.handle.net/2263/93459 © Crown 2022. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License. Cold desert soil microbiomes Moisture Nutrient limitations Eastern Antarctic soils SDG-15: Life on land Article 2022 ftunivpretoria https://doi.org/10.1038/s41396-022-01298-5 2023-11-28T01:30:08Z DATA AVAILABILITY : Next generation sequencing data that supports the findings of this study have been deposited in GenBank with the accession code PRJNA664610. All other data supporting the findings of this study are available in the article/Supplementary Information. Cold desert soil microbiomes thrive despite severe moisture and nutrient limitations. In Eastern Antarctic soils, bacterial primary production is supported by trace gas oxidation and the light-independent RuBisCO form IE. This study aims to determine if atmospheric chemosynthesis is widespread within Antarctic, Arctic and Tibetan cold deserts, to identify the breadth of trace gas chemosynthetic taxa and to further characterize the genetic determinants of this process. H2 oxidation was ubiquitous, far exceeding rates reported to fulfill the maintenance needs of similarly structured edaphic microbiomes. Atmospheric chemosynthesis occurred globally, contributing significantly (p < 0.05) to carbon fixation in Antarctica and the high Arctic. Taxonomic and functional analyses were performed upon 18 cold desert metagenomes, 230 dereplicated medium-to-high-quality derived metagenome-assembled genomes (MAGs) and an additional 24,080 publicly available genomes. Hydrogenotrophic and carboxydotrophic growth markers were widespread. RuBisCO IE was discovered to co-occur alongside trace gas oxidation enzymes in representative Chloroflexota, Firmicutes, Deinococcota and Verrucomicrobiota genomes. We identify a novel group of high-affinity [NiFe]-hydrogenases, group 1m, through phylogenetics, gene structure analysis and homology modeling, and reveal substantial genetic diversity within RuBisCO form IE (rbcL1E), and high-affinity 1h and 1l [NiFe]-hydrogenase groups. We conclude that atmospheric chemosynthesis is a globally-distributed phenomenon, extending throughout cold deserts, with significant implications for the global carbon cycle and bacterial survival within environmental reservoirs. The Australian Government Research Training Program (RTP) ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic University of Pretoria: UPSpace Antarctic Arctic The ISME Journal 16 11 2547 2560 |
institution |
Open Polar |
collection |
University of Pretoria: UPSpace |
op_collection_id |
ftunivpretoria |
language |
English |
topic |
Cold desert soil microbiomes Moisture Nutrient limitations Eastern Antarctic soils SDG-15: Life on land |
spellingShingle |
Cold desert soil microbiomes Moisture Nutrient limitations Eastern Antarctic soils SDG-15: Life on land Ray, Angelique E. Zaugg, Julian Benaud, Nicole Chelliah, Devan S. Bay, Sean Wong, Hon Lun Leung, Pok Man Ji, Mukan Terauds, Aleks Montgomery, Kate Greening, Chris Cowan, Don A. Kong, Weidong Williams, Timothy J. Hugenholtz, Philip Ferrari, Belinda C. Atmospheric chemosynthesis is phylogenetically and geographically widespread and contributes significantly to carbon fixation throughout cold deserts |
topic_facet |
Cold desert soil microbiomes Moisture Nutrient limitations Eastern Antarctic soils SDG-15: Life on land |
description |
DATA AVAILABILITY : Next generation sequencing data that supports the findings of this study have been deposited in GenBank with the accession code PRJNA664610. All other data supporting the findings of this study are available in the article/Supplementary Information. Cold desert soil microbiomes thrive despite severe moisture and nutrient limitations. In Eastern Antarctic soils, bacterial primary production is supported by trace gas oxidation and the light-independent RuBisCO form IE. This study aims to determine if atmospheric chemosynthesis is widespread within Antarctic, Arctic and Tibetan cold deserts, to identify the breadth of trace gas chemosynthetic taxa and to further characterize the genetic determinants of this process. H2 oxidation was ubiquitous, far exceeding rates reported to fulfill the maintenance needs of similarly structured edaphic microbiomes. Atmospheric chemosynthesis occurred globally, contributing significantly (p < 0.05) to carbon fixation in Antarctica and the high Arctic. Taxonomic and functional analyses were performed upon 18 cold desert metagenomes, 230 dereplicated medium-to-high-quality derived metagenome-assembled genomes (MAGs) and an additional 24,080 publicly available genomes. Hydrogenotrophic and carboxydotrophic growth markers were widespread. RuBisCO IE was discovered to co-occur alongside trace gas oxidation enzymes in representative Chloroflexota, Firmicutes, Deinococcota and Verrucomicrobiota genomes. We identify a novel group of high-affinity [NiFe]-hydrogenases, group 1m, through phylogenetics, gene structure analysis and homology modeling, and reveal substantial genetic diversity within RuBisCO form IE (rbcL1E), and high-affinity 1h and 1l [NiFe]-hydrogenase groups. We conclude that atmospheric chemosynthesis is a globally-distributed phenomenon, extending throughout cold deserts, with significant implications for the global carbon cycle and bacterial survival within environmental reservoirs. The Australian Government Research Training Program (RTP) ... |
format |
Article in Journal/Newspaper |
author |
Ray, Angelique E. Zaugg, Julian Benaud, Nicole Chelliah, Devan S. Bay, Sean Wong, Hon Lun Leung, Pok Man Ji, Mukan Terauds, Aleks Montgomery, Kate Greening, Chris Cowan, Don A. Kong, Weidong Williams, Timothy J. Hugenholtz, Philip Ferrari, Belinda C. |
author_facet |
Ray, Angelique E. Zaugg, Julian Benaud, Nicole Chelliah, Devan S. Bay, Sean Wong, Hon Lun Leung, Pok Man Ji, Mukan Terauds, Aleks Montgomery, Kate Greening, Chris Cowan, Don A. Kong, Weidong Williams, Timothy J. Hugenholtz, Philip Ferrari, Belinda C. |
author_sort |
Ray, Angelique E. |
title |
Atmospheric chemosynthesis is phylogenetically and geographically widespread and contributes significantly to carbon fixation throughout cold deserts |
title_short |
Atmospheric chemosynthesis is phylogenetically and geographically widespread and contributes significantly to carbon fixation throughout cold deserts |
title_full |
Atmospheric chemosynthesis is phylogenetically and geographically widespread and contributes significantly to carbon fixation throughout cold deserts |
title_fullStr |
Atmospheric chemosynthesis is phylogenetically and geographically widespread and contributes significantly to carbon fixation throughout cold deserts |
title_full_unstemmed |
Atmospheric chemosynthesis is phylogenetically and geographically widespread and contributes significantly to carbon fixation throughout cold deserts |
title_sort |
atmospheric chemosynthesis is phylogenetically and geographically widespread and contributes significantly to carbon fixation throughout cold deserts |
publisher |
Springer Nature |
publishDate |
2022 |
url |
http://hdl.handle.net/2263/93459 https://doi.org/10.1038/s41396-022-01298-5 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Antarctica Arctic |
genre_facet |
Antarc* Antarctic Antarctica Arctic |
op_relation |
1751-7362 (print) 1751-7370 (online) doi:10.1038/s41396-022-01298-5 http://hdl.handle.net/2263/93459 |
op_rights |
© Crown 2022. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License. |
op_doi |
https://doi.org/10.1038/s41396-022-01298-5 |
container_title |
The ISME Journal |
container_volume |
16 |
container_issue |
11 |
container_start_page |
2547 |
op_container_end_page |
2560 |
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1786212558769750016 |