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Provedor de dados:  5
País:  France
Título:  The marine bacteria Cobetia marina DSMZ 4741 synthesizes an unexpected K-antigen-like exopolysaccharide
Autores:  Lelchat, Florian
Cerantola, Stephane
Brandily, Christophe
Colliec-jouault, Sylvia
Baudoux, Anne-claire
Ojima, Takao
Boisset, Claire
Data:  2015-06
Ano:  2015
Palavras-chave:  Bacterial exopolysaccharides
K-antigen
Cobetia marina
KDO
Marine polysaccharide
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.
Tipo:  Text
Idioma:  Inglês
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/
Editor:  Elsevier Sci Ltd
Formato:  application/pdf
Fonte:  Carbohydrate Polymers (0144-8617) (Elsevier Sci Ltd), 2015-06 , Vol. 124 , P. 347-356
Direitos:  2015 Elsevier Ltd. All rights reserved.

info:eu-repo/semantics/openAccess

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