Data/hora: 16/06/2024 11:17:25

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

Fonte:

2015 Elsevier Ltd. All rights reserved.

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