Adaptations to extreme conditions: the strategy of the Antarctic cyanobacterium ULC007
In Polar regions, freshwater ecosystems range from cryoecosystems and ice shelf meltwater ponds to perennially ice-covered lakes where conspicuous benthic microbial mat communities constitute most of the biomass. In these mats, cyanobacteria form the matrix in which other microorganisms can live, an...
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ftorbi:oai:orbi.ulg.ac.be:2268/231988 2024-10-13T14:02:46+00:00 Adaptations to extreme conditions: the strategy of the Antarctic cyanobacterium ULC007 Lara, Yannick Durieu, Benoit Javaux, Emmanuelle Wilmotte, Annick 2018-12-18 https://orbi.uliege.be/handle/2268/231988 https://orbi.uliege.be/bitstream/2268/231988/1/ULC007_Oral_presa_final.doc en eng https://orbi.uliege.be/handle/2268/231988 info:hdl:2268/231988 https://orbi.uliege.be/bitstream/2268/231988/1/ULC007_Oral_presa_final.doc open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Annual meeting of the FRS-FNRS Contact Group “Astrobiology: from stars and planets to extreme life”, Liège, Belgium [BE], 18 Décembre 2018 comparative genomic cyanobacteria antarctic Life sciences Microbiology Sciences du vivant Microbiologie conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper 2018 ftorbi 2024-09-27T07:01:34Z In Polar regions, freshwater ecosystems range from cryoecosystems and ice shelf meltwater ponds to perennially ice-covered lakes where conspicuous benthic microbial mat communities constitute most of the biomass. In these mats, cyanobacteria form the matrix in which other microorganisms can live, and where they are the key primary producers and main drivers of the carbon and food webs. To provide a better understanding of the survival strategies of Polar mat-forming cyanobacteria, we investigated the genome of a strain of the widely distributed Antarctic cyanobacterium, Phormidium priestleyi ULC007. We used high-throughput sequencing technologies to investigate its geographic distribution and genome evolution. More precisely, we investigated the abundance of genes involved in cold adaptation and circadian oscillation. In cold habitats, low temperatures lead to the success of particular organisms featuring adaptations to molecular and cellular disturbances such as higher rigidity of membranes, reduction of enzyme-catalyzed reactions, and reduction of solute transport. Our main results underline the importance of functional categories of genes involved in the production of key molecules for the survival of P. priestleyi in cold conditions (e.g. synthesis of exopolysaccharides, chaperone proteins, fatty acids and phospholipids). Conference Object Antarc* Antarctic Ice Shelf University of Liège: ORBi (Open Repository and Bibliography) Antarctic The Antarctic |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
comparative genomic cyanobacteria antarctic Life sciences Microbiology Sciences du vivant Microbiologie |
spellingShingle |
comparative genomic cyanobacteria antarctic Life sciences Microbiology Sciences du vivant Microbiologie Lara, Yannick Durieu, Benoit Javaux, Emmanuelle Wilmotte, Annick Adaptations to extreme conditions: the strategy of the Antarctic cyanobacterium ULC007 |
topic_facet |
comparative genomic cyanobacteria antarctic Life sciences Microbiology Sciences du vivant Microbiologie |
description |
In Polar regions, freshwater ecosystems range from cryoecosystems and ice shelf meltwater ponds to perennially ice-covered lakes where conspicuous benthic microbial mat communities constitute most of the biomass. In these mats, cyanobacteria form the matrix in which other microorganisms can live, and where they are the key primary producers and main drivers of the carbon and food webs. To provide a better understanding of the survival strategies of Polar mat-forming cyanobacteria, we investigated the genome of a strain of the widely distributed Antarctic cyanobacterium, Phormidium priestleyi ULC007. We used high-throughput sequencing technologies to investigate its geographic distribution and genome evolution. More precisely, we investigated the abundance of genes involved in cold adaptation and circadian oscillation. In cold habitats, low temperatures lead to the success of particular organisms featuring adaptations to molecular and cellular disturbances such as higher rigidity of membranes, reduction of enzyme-catalyzed reactions, and reduction of solute transport. Our main results underline the importance of functional categories of genes involved in the production of key molecules for the survival of P. priestleyi in cold conditions (e.g. synthesis of exopolysaccharides, chaperone proteins, fatty acids and phospholipids). |
format |
Conference Object |
author |
Lara, Yannick Durieu, Benoit Javaux, Emmanuelle Wilmotte, Annick |
author_facet |
Lara, Yannick Durieu, Benoit Javaux, Emmanuelle Wilmotte, Annick |
author_sort |
Lara, Yannick |
title |
Adaptations to extreme conditions: the strategy of the Antarctic cyanobacterium ULC007 |
title_short |
Adaptations to extreme conditions: the strategy of the Antarctic cyanobacterium ULC007 |
title_full |
Adaptations to extreme conditions: the strategy of the Antarctic cyanobacterium ULC007 |
title_fullStr |
Adaptations to extreme conditions: the strategy of the Antarctic cyanobacterium ULC007 |
title_full_unstemmed |
Adaptations to extreme conditions: the strategy of the Antarctic cyanobacterium ULC007 |
title_sort |
adaptations to extreme conditions: the strategy of the antarctic cyanobacterium ulc007 |
publishDate |
2018 |
url |
https://orbi.uliege.be/handle/2268/231988 https://orbi.uliege.be/bitstream/2268/231988/1/ULC007_Oral_presa_final.doc |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Ice Shelf |
genre_facet |
Antarc* Antarctic Ice Shelf |
op_source |
Annual meeting of the FRS-FNRS Contact Group “Astrobiology: from stars and planets to extreme life”, Liège, Belgium [BE], 18 Décembre 2018 |
op_relation |
https://orbi.uliege.be/handle/2268/231988 info:hdl:2268/231988 https://orbi.uliege.be/bitstream/2268/231988/1/ULC007_Oral_presa_final.doc |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1812819234110046208 |