| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
The marine bacteria Cobetia marina DSMZ 4741 synthesizes an unexpected K-antigen-like exopolysaccharide
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| Autores: |
Lelchat, Florian
Cerantola, Stephane
Brandily, Christophe
Colliec-jouault, Sylvia
Baudoux, Anne-claire
Ojima, Takao
Boisset, Claire
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| Data: |
2015-06
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| Ano: |
2015
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| Palavras-chave: |
Bacterial exopolysaccharides
K-antigen
Cobetia marina
KDO
Marine polysaccharide
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| Resumo: |
We have studied the exopolysaccharide produced by Cobetia marina DSMZ 4741, a marine bacterium isolated from coastal seawater. This strain is able to produce a polysaccharide in presence of carbon sources as glucose, mannitol and alginate. The maximum production occurs in aerobic condition, during the end of the exponential phase. The polymer is a non-viscous, acidic heteropolysaccharide of 270 kDa constituted of a repeating unit of: →2)-β-D-Ribf-(1→4)-[7,8-O-(Pyr)]-α-D-KDOp-(2→ This kind of chemical structure is generally related to K-antigen polysaccharide of pathogenic Escherichia coli strains. This is the first time this type of EPS is described from a marine bacterium. Moreover the polysaccharide exhibits a pyruvate substitution on its 3-deoxy-D-manno-oct-2-ulosonic acid (KDO) residue never encountered before. The discovery of such an unexpected EPS with high biotechnological potential is a new incentive for a better exploration of bioactive marine resources.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00254/36494/35038.pdf
DOI:10.1016/j.carbpol.2015.02.038
https://archimer.ifremer.fr/doc/00254/36494/
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| Editor: |
Elsevier Sci Ltd
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| Formato: |
application/pdf
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| Fonte: |
Carbohydrate Polymers (0144-8617) (Elsevier Sci Ltd), 2015-06 , Vol. 124 , P. 347-356
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| Direitos: |
2015 Elsevier Ltd. All rights reserved.
info:eu-repo/semantics/openAccess
restricted use
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