The survival toolkit of the Antarctic cyanobacterium Phormidesmis priestleyi ULC007
peer reviewed Extreme seasonality led by rapid changes in day length and harsh environmental conditions make Antarctica a unique habitat. Freshwater ecosystems range from cryoecosystems and ice shelf meltwater ponds to perennially ice-covered lakes where conspicuous benthic microbial mat communities...
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ftorbi:oai:orbi.ulg.ac.be:2268/221664 2024-04-21T07:48:32+00:00 The survival toolkit of the Antarctic cyanobacterium Phormidesmis priestleyi ULC007 Lara, Yannick Durieu, Benoit Pessi, Igor Cornet, Luc Baurain, Denis Javaux, Emmanuelle Wilmotte, Annick 2018-03 https://orbi.uliege.be/handle/2268/221664 https://orbi.uliege.be/bitstream/2268/221664/1/ULC007_Oral_presa_final.doc en eng https://orbi.uliege.be/handle/2268/221664 info:hdl:2268/221664 https://orbi.uliege.be/bitstream/2268/221664/1/ULC007_Oral_presa_final.doc open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess COST Life Origin Final Workshop, Bertinoro, Italy [IT], 19-23 March 2018 Antarctic Astrobiology Cyanobacteria Life sciences Microbiology Environmental sciences & ecology Physical chemical mathematical & earth Sciences Earth sciences & physical geography Sciences du vivant Microbiologie Sciences de l’environnement & écologie Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper peer reviewed 2018 ftorbi 2024-03-27T14:58:25Z peer reviewed Extreme seasonality led by rapid changes in day length and harsh environmental conditions make Antarctica a unique habitat. 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[1]. Narrow filamentous cyanobacteria belonging to the order Pseudanabaenales are especially abundant in polar microbial mats [2]. Despite the dominance of cyanobacteria on the Antarctic continent, there is currently no study available on the genomic evolution of Antarctic cyanobacteria. Here we investigate the genome of a widely distributed Antarctic cyanobacterium, Phormidium priestleyi ULC007. To provide a better understanding of the survival strategies of this taxon, we used high-throughput sequencing technologies to investigate its geographic distribution and genome evolution. More precisely, we investigated the abundance of genes in targeted functional categories based on the RAST subsystems technology, so as to provide a better overview of the genetic mechanisms involved in cold adaptation and circadian oscillation [3]. In Polar regions, low temperatures lead to the success of particular organisms featuring adaptations to molecular and cellular disturbances such as rigidity of membranes, reduction of enzyme-catalyzed reactions, and solute transport. Our main results underline the importance of functional categories of genes involved in the production of key molecules for the survival of polar P. priestleyi (e.g. exopolysaccharides, chaperone proteins, fatty acids and phospholipids). Conference Object Antarc* Antarctic Antarctica Ice Shelf University of Liège: ORBi (Open Repository and Bibliography) |
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Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Antarctic Astrobiology Cyanobacteria Life sciences Microbiology Environmental sciences & ecology Physical chemical mathematical & earth Sciences Earth sciences & physical geography Sciences du vivant Microbiologie Sciences de l’environnement & écologie Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Antarctic Astrobiology Cyanobacteria Life sciences Microbiology Environmental sciences & ecology Physical chemical mathematical & earth Sciences Earth sciences & physical geography Sciences du vivant Microbiologie Sciences de l’environnement & écologie Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Lara, Yannick Durieu, Benoit Pessi, Igor Cornet, Luc Baurain, Denis Javaux, Emmanuelle Wilmotte, Annick The survival toolkit of the Antarctic cyanobacterium Phormidesmis priestleyi ULC007 |
topic_facet |
Antarctic Astrobiology Cyanobacteria Life sciences Microbiology Environmental sciences & ecology Physical chemical mathematical & earth Sciences Earth sciences & physical geography Sciences du vivant Microbiologie Sciences de l’environnement & écologie Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed Extreme seasonality led by rapid changes in day length and harsh environmental conditions make Antarctica a unique habitat. 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[1]. Narrow filamentous cyanobacteria belonging to the order Pseudanabaenales are especially abundant in polar microbial mats [2]. Despite the dominance of cyanobacteria on the Antarctic continent, there is currently no study available on the genomic evolution of Antarctic cyanobacteria. Here we investigate the genome of a widely distributed Antarctic cyanobacterium, Phormidium priestleyi ULC007. To provide a better understanding of the survival strategies of this taxon, we used high-throughput sequencing technologies to investigate its geographic distribution and genome evolution. More precisely, we investigated the abundance of genes in targeted functional categories based on the RAST subsystems technology, so as to provide a better overview of the genetic mechanisms involved in cold adaptation and circadian oscillation [3]. In Polar regions, low temperatures lead to the success of particular organisms featuring adaptations to molecular and cellular disturbances such as rigidity of membranes, reduction of enzyme-catalyzed reactions, and solute transport. Our main results underline the importance of functional categories of genes involved in the production of key molecules for the survival of polar P. priestleyi (e.g. exopolysaccharides, chaperone proteins, fatty acids and phospholipids). |
format |
Conference Object |
author |
Lara, Yannick Durieu, Benoit Pessi, Igor Cornet, Luc Baurain, Denis Javaux, Emmanuelle Wilmotte, Annick |
author_facet |
Lara, Yannick Durieu, Benoit Pessi, Igor Cornet, Luc Baurain, Denis Javaux, Emmanuelle Wilmotte, Annick |
author_sort |
Lara, Yannick |
title |
The survival toolkit of the Antarctic cyanobacterium Phormidesmis priestleyi ULC007 |
title_short |
The survival toolkit of the Antarctic cyanobacterium Phormidesmis priestleyi ULC007 |
title_full |
The survival toolkit of the Antarctic cyanobacterium Phormidesmis priestleyi ULC007 |
title_fullStr |
The survival toolkit of the Antarctic cyanobacterium Phormidesmis priestleyi ULC007 |
title_full_unstemmed |
The survival toolkit of the Antarctic cyanobacterium Phormidesmis priestleyi ULC007 |
title_sort |
survival toolkit of the antarctic cyanobacterium phormidesmis priestleyi ulc007 |
publishDate |
2018 |
url |
https://orbi.uliege.be/handle/2268/221664 https://orbi.uliege.be/bitstream/2268/221664/1/ULC007_Oral_presa_final.doc |
genre |
Antarc* Antarctic Antarctica Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf |
op_source |
COST Life Origin Final Workshop, Bertinoro, Italy [IT], 19-23 March 2018 |
op_relation |
https://orbi.uliege.be/handle/2268/221664 info:hdl:2268/221664 https://orbi.uliege.be/bitstream/2268/221664/1/ULC007_Oral_presa_final.doc |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
_version_ |
1796950103047536640 |