Data/hora: 08/06/2024 14:27:37

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Use of Natural Antimicrobial Peptides and Bacterial Biopolymers for Cultured Pearl Production
Autores: | Simon-colin, Christelle; Gueguen, Yannick; Bachere, Evelyne; Kouzayha, Achraf; Saulnier, Denis; Gayet, Nicolas; Guezennec, Jean.
Data: | 2015-06
Ano: | 2015
Palavras-chave: | Pearl oyster; Exopolysaccharide; Tachyplesin; Antimicrobial.
Resumo: | Cultured pearls are the product of grafting and rearing of Pinctada margaritifera pearl oysters in their natural environment. Nucleus rejections and oyster mortality appear to result from bacterial infections or from an inappropriate grafting practice. To reduce the impact of bacterial infections, synthetic antibiotics have been applied during the grafting practice. However, the use of such antibiotics presents a number of problems associated with their incomplete biodegradability, limited efficacy in some cases, and an increased risk of selecting for antimicrobial resistant bacteria. We investigated the application of a marine antimicrobial peptide, tachyplesin, which is present in the Japanese horseshoe crab Tachypleus tridentatus, in combination with two marine bacterial exopolymers as alternative treatment agents. In field studies, the combination treatment resulted in a significant reduction in graft failures vs. untreated controls. The combination of tachyplesin (73 mg/L) with two bacterial exopolysaccharides (0.5% w/w) acting as filming agents, reduces graft-associated bacterial contamination. The survival data were similar to that reported for antibiotic treatments. These data suggest that non-antibiotic treatments of pearl oysters may provide an effective means of improving oyster survival following grafting procedures.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00275/38599/37128.pdf

DOI:10.3390/md13063732

https://archimer.ifremer.fr/doc/00275/38599/

Editor: | Mdpi Ag
Formato: | application/pdf
Fonte: | Marine Drugs (1660-3397) (Mdpi Ag), 2015-06 , Vol. 13 , N. 6 , P. 3732-3744

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