Comparative metagenomic analysis reveals mechanisms for stress response in hypoliths from extreme hyperarid deserts
Understanding microbial adaptation to environmental stressors is crucial for interpreting broader ecological patterns. In the most extreme hot and cold deserts, cryptic niche communities are thought to play key roles in ecosystem processes and represent excellent model systems for investigating micr...
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ftunivgent:oai:archive.ugent.be:8174114 2023-06-11T04:05:27+02:00 Comparative metagenomic analysis reveals mechanisms for stress response in hypoliths from extreme hyperarid deserts LE, Phuong Makhalanyane, Thulani P Guerrero, Leandro D Vikram, Surendra Van de Peer, Yves Cowan, Don A 2016 application/pdf https://biblio.ugent.be/publication/8174114 http://hdl.handle.net/1854/LU-8174114 https://doi.org/10.1093/gbe/evw189 https://biblio.ugent.be/publication/8174114/file/8174122 eng eng https://biblio.ugent.be/publication/8174114 http://hdl.handle.net/1854/LU-8174114 http://dx.doi.org/10.1093/gbe/evw189 https://biblio.ugent.be/publication/8174114/file/8174122 No license (in copyright) info:eu-repo/semantics/openAccess GENOME BIOLOGY AND EVOLUTION ISSN: 1759-6653 Earth and Environmental Sciences CLIMATE-CHANGE BACTERIAL COMMUNITIES NAMIB DESERT ENVIRONMENTAL GRADIENTS ROSS SEA REGION ANTARCTIC DRY VALLEY SOIL MICROBIAL COMMUNITIES biomes soils hypoliths Antarctica comparative metagenomics deserts stress response ECOSYSTEM FUNCTION BACILLUS-SUBTILIS ORTHOLOG GROUPS journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2016 ftunivgent https://doi.org/10.1093/gbe/evw189 2023-05-10T22:40:13Z Understanding microbial adaptation to environmental stressors is crucial for interpreting broader ecological patterns. In the most extreme hot and cold deserts, cryptic niche communities are thought to play key roles in ecosystem processes and represent excellent model systems for investigating microbial responses to environmental stressors. However, relatively little is known about the genetic diversity underlying such functional processes in climatically extreme desert systems. This study presents the first comparative metagenome analysis of cyanobacteria-dominated hypolithic communities in hot (Namib Desert, Namibia) and cold (Miers Valley, Antarctica) hyperarid deserts. The most abundant phyla in both hypolith metagenomes were Actinobacteria, Proteobacteria, Cyanobacteria and Bacteroidetes with Cyanobacteria dominating in Antarctic hypoliths. However, no significant differences between the two metagenomes were identified. The Antarctic hypolithic metagenome displayed a high number of sequences assigned to sigma factors, replication, recombination and repair, translation, ribosomal structure, and biogenesis. In contrast, the Namib Desert metagenome showed a high abundance of sequences assigned to carbohydrate transport and metabolism. Metagenome data analysis also revealed significant divergence in the genetic determinants of amino acid and nucleotide metabolism between these two metagenomes and those of soil from other polar deserts, hot deserts, and non-desert soils. Our results suggest extensive niche differentiation in hypolithic microbial communities from these two extreme environments and a high genetic capacity for survival under environmental extremes. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ross Sea Ghent University Academic Bibliography Antarctic The Antarctic Ross Sea Miers ENVELOPE(163.850,163.850,-78.100,-78.100) Miers Valley ENVELOPE(164.200,164.200,-78.100,-78.100) Genome Biology and Evolution 8 9 2737 2747 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences CLIMATE-CHANGE BACTERIAL COMMUNITIES NAMIB DESERT ENVIRONMENTAL GRADIENTS ROSS SEA REGION ANTARCTIC DRY VALLEY SOIL MICROBIAL COMMUNITIES biomes soils hypoliths Antarctica comparative metagenomics deserts stress response ECOSYSTEM FUNCTION BACILLUS-SUBTILIS ORTHOLOG GROUPS |
spellingShingle |
Earth and Environmental Sciences CLIMATE-CHANGE BACTERIAL COMMUNITIES NAMIB DESERT ENVIRONMENTAL GRADIENTS ROSS SEA REGION ANTARCTIC DRY VALLEY SOIL MICROBIAL COMMUNITIES biomes soils hypoliths Antarctica comparative metagenomics deserts stress response ECOSYSTEM FUNCTION BACILLUS-SUBTILIS ORTHOLOG GROUPS LE, Phuong Makhalanyane, Thulani P Guerrero, Leandro D Vikram, Surendra Van de Peer, Yves Cowan, Don A Comparative metagenomic analysis reveals mechanisms for stress response in hypoliths from extreme hyperarid deserts |
topic_facet |
Earth and Environmental Sciences CLIMATE-CHANGE BACTERIAL COMMUNITIES NAMIB DESERT ENVIRONMENTAL GRADIENTS ROSS SEA REGION ANTARCTIC DRY VALLEY SOIL MICROBIAL COMMUNITIES biomes soils hypoliths Antarctica comparative metagenomics deserts stress response ECOSYSTEM FUNCTION BACILLUS-SUBTILIS ORTHOLOG GROUPS |
description |
Understanding microbial adaptation to environmental stressors is crucial for interpreting broader ecological patterns. In the most extreme hot and cold deserts, cryptic niche communities are thought to play key roles in ecosystem processes and represent excellent model systems for investigating microbial responses to environmental stressors. However, relatively little is known about the genetic diversity underlying such functional processes in climatically extreme desert systems. This study presents the first comparative metagenome analysis of cyanobacteria-dominated hypolithic communities in hot (Namib Desert, Namibia) and cold (Miers Valley, Antarctica) hyperarid deserts. The most abundant phyla in both hypolith metagenomes were Actinobacteria, Proteobacteria, Cyanobacteria and Bacteroidetes with Cyanobacteria dominating in Antarctic hypoliths. However, no significant differences between the two metagenomes were identified. The Antarctic hypolithic metagenome displayed a high number of sequences assigned to sigma factors, replication, recombination and repair, translation, ribosomal structure, and biogenesis. In contrast, the Namib Desert metagenome showed a high abundance of sequences assigned to carbohydrate transport and metabolism. Metagenome data analysis also revealed significant divergence in the genetic determinants of amino acid and nucleotide metabolism between these two metagenomes and those of soil from other polar deserts, hot deserts, and non-desert soils. Our results suggest extensive niche differentiation in hypolithic microbial communities from these two extreme environments and a high genetic capacity for survival under environmental extremes. |
format |
Article in Journal/Newspaper |
author |
LE, Phuong Makhalanyane, Thulani P Guerrero, Leandro D Vikram, Surendra Van de Peer, Yves Cowan, Don A |
author_facet |
LE, Phuong Makhalanyane, Thulani P Guerrero, Leandro D Vikram, Surendra Van de Peer, Yves Cowan, Don A |
author_sort |
LE, Phuong |
title |
Comparative metagenomic analysis reveals mechanisms for stress response in hypoliths from extreme hyperarid deserts |
title_short |
Comparative metagenomic analysis reveals mechanisms for stress response in hypoliths from extreme hyperarid deserts |
title_full |
Comparative metagenomic analysis reveals mechanisms for stress response in hypoliths from extreme hyperarid deserts |
title_fullStr |
Comparative metagenomic analysis reveals mechanisms for stress response in hypoliths from extreme hyperarid deserts |
title_full_unstemmed |
Comparative metagenomic analysis reveals mechanisms for stress response in hypoliths from extreme hyperarid deserts |
title_sort |
comparative metagenomic analysis reveals mechanisms for stress response in hypoliths from extreme hyperarid deserts |
publishDate |
2016 |
url |
https://biblio.ugent.be/publication/8174114 http://hdl.handle.net/1854/LU-8174114 https://doi.org/10.1093/gbe/evw189 https://biblio.ugent.be/publication/8174114/file/8174122 |
long_lat |
ENVELOPE(163.850,163.850,-78.100,-78.100) ENVELOPE(164.200,164.200,-78.100,-78.100) |
geographic |
Antarctic The Antarctic Ross Sea Miers Miers Valley |
geographic_facet |
Antarctic The Antarctic Ross Sea Miers Miers Valley |
genre |
Antarc* Antarctic Antarctica Ross Sea |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea |
op_source |
GENOME BIOLOGY AND EVOLUTION ISSN: 1759-6653 |
op_relation |
https://biblio.ugent.be/publication/8174114 http://hdl.handle.net/1854/LU-8174114 http://dx.doi.org/10.1093/gbe/evw189 https://biblio.ugent.be/publication/8174114/file/8174122 |
op_rights |
No license (in copyright) info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/gbe/evw189 |
container_title |
Genome Biology and Evolution |
container_volume |
8 |
container_issue |
9 |
container_start_page |
2737 |
op_container_end_page |
2747 |
_version_ |
1768375690382540800 |