Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria
Exopolysaccharides (EPS) may have an important role in the Antarctic marine environment, possibly acting as ligands for trace metal nutrients such as iron or providing cryoprotection for growth at low temperature and high salinity. Ten bacterial strains, isolated from Southern Ocean particulate mate...
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ftunivtasecite:oai:ecite.utas.edu.au:29272 2023-05-15T14:03:54+02:00 Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria Mancuso Nichols, CA Lardiere, SG Bowman, JP Nichols, PD Gibson, JAE Guezennec, J 2005 https://doi.org/10.1007/s00248-004-0093-8 http://www.ncbi.nlm.nih.gov/pubmed/16052372 http://ecite.utas.edu.au/29272 en eng Springer Verlag http://dx.doi.org/10.1007/s00248-004-0093-8 Mancuso Nichols, CA and Lardiere, SG and Bowman, JP and Nichols, PD and Gibson, JAE and Guezennec, J, Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria, Microbial Ecology, 49, (4) pp. 578-589. ISSN 0095-3628 (2005) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/16052372 http://ecite.utas.edu.au/29272 Biological Sciences Microbiology Microbiology not elsewhere classified Refereed Article PeerReviewed 2005 ftunivtasecite https://doi.org/10.1007/s00248-004-0093-8 2019-12-13T21:09:27Z Exopolysaccharides (EPS) may have an important role in the Antarctic marine environment, possibly acting as ligands for trace metal nutrients such as iron or providing cryoprotection for growth at low temperature and high salinity. Ten bacterial strains, isolated from Southern Ocean particulate material or from sea ice, were characterized. Whole cell fatty acid profiles and 16S rRNA gene sequences showed that the isolates included representatives of the genera Pseudoalteromonas, Shewanella, Polaribacter, and Flavobacterium as well as one strain, which constituted a new bacterial genus in the family Flavobacteriaceae. The isolates are, therefore, members of the "Gammaproteobacteria" and Cytophaga-Flexibacter-Bacteroides, the taxonomic groups that have been shown to dominate polar sea ice and seawater microbial communities. Exopolysaccharides produced by Antarctic isolates were characterized. Chemical composition and molecular weight data revealed that these EPS were very diverse, even among six closely related Pseudoalteromonas isolates. Most of the EPS contained charged uronic acid residues; several also contained sulfate groups. Some strain produced unusually large polymers (molecular weight up to 5.7 MDa) including one strain in which EPS synthesis is stimulated by low temperature. This study represents a first step in the understanding of the role of bacterial EPS in the Antarctic marine environment. Springer Science+Business Media, Inc. 2005. Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean eCite UTAS (University of Tasmania) Antarctic Southern Ocean The Antarctic Microbial Ecology 49 4 578 589 |
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English |
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Biological Sciences Microbiology Microbiology not elsewhere classified |
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Biological Sciences Microbiology Microbiology not elsewhere classified Mancuso Nichols, CA Lardiere, SG Bowman, JP Nichols, PD Gibson, JAE Guezennec, J Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria |
topic_facet |
Biological Sciences Microbiology Microbiology not elsewhere classified |
description |
Exopolysaccharides (EPS) may have an important role in the Antarctic marine environment, possibly acting as ligands for trace metal nutrients such as iron or providing cryoprotection for growth at low temperature and high salinity. Ten bacterial strains, isolated from Southern Ocean particulate material or from sea ice, were characterized. Whole cell fatty acid profiles and 16S rRNA gene sequences showed that the isolates included representatives of the genera Pseudoalteromonas, Shewanella, Polaribacter, and Flavobacterium as well as one strain, which constituted a new bacterial genus in the family Flavobacteriaceae. The isolates are, therefore, members of the "Gammaproteobacteria" and Cytophaga-Flexibacter-Bacteroides, the taxonomic groups that have been shown to dominate polar sea ice and seawater microbial communities. Exopolysaccharides produced by Antarctic isolates were characterized. Chemical composition and molecular weight data revealed that these EPS were very diverse, even among six closely related Pseudoalteromonas isolates. Most of the EPS contained charged uronic acid residues; several also contained sulfate groups. Some strain produced unusually large polymers (molecular weight up to 5.7 MDa) including one strain in which EPS synthesis is stimulated by low temperature. This study represents a first step in the understanding of the role of bacterial EPS in the Antarctic marine environment. Springer Science+Business Media, Inc. 2005. |
format |
Article in Journal/Newspaper |
author |
Mancuso Nichols, CA Lardiere, SG Bowman, JP Nichols, PD Gibson, JAE Guezennec, J |
author_facet |
Mancuso Nichols, CA Lardiere, SG Bowman, JP Nichols, PD Gibson, JAE Guezennec, J |
author_sort |
Mancuso Nichols, CA |
title |
Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria |
title_short |
Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria |
title_full |
Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria |
title_fullStr |
Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria |
title_full_unstemmed |
Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria |
title_sort |
chemical characterization of exopolysaccharides from antarctic marine bacteria |
publisher |
Springer Verlag |
publishDate |
2005 |
url |
https://doi.org/10.1007/s00248-004-0093-8 http://www.ncbi.nlm.nih.gov/pubmed/16052372 http://ecite.utas.edu.au/29272 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_relation |
http://dx.doi.org/10.1007/s00248-004-0093-8 Mancuso Nichols, CA and Lardiere, SG and Bowman, JP and Nichols, PD and Gibson, JAE and Guezennec, J, Chemical Characterization of Exopolysaccharides from Antarctic Marine Bacteria, Microbial Ecology, 49, (4) pp. 578-589. ISSN 0095-3628 (2005) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/16052372 http://ecite.utas.edu.au/29272 |
op_doi |
https://doi.org/10.1007/s00248-004-0093-8 |
container_title |
Microbial Ecology |
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49 |
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4 |
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578 |
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589 |
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1766274772658814976 |