Data/hora: 06/06/2024 13:29:17

Provedor de dados: | 5
País: | France
Título: | Toxic factors of Vibrio strains pathogenic to shrimp
Autores: | Goarant, Cyrille; Herlin, Jose; Brizard, Raphael; Marteau, Anne-laure; Martin, C; Martin, B.
Data: | 2000-03
Ano: | 2000
Palavras-chave: | Vibrio; Vibrio penaeicida; Shrimp; Extracellular products; Temperature.
Resumo: | Vibriosis is a major disease problem in shrimp aquaculture. 'Syndrome 93' is a seasonal juvenile vibriosis caused by Vibrio penaeicida which affects Litopenaeus stylirostris in grow-out ponds in New Caledonia. This study assessed the toxic activities of extracellular products (ECPs) from V: penaeicida, V. alginolyticus and V, nigripulchritudo using in vivo injections in healthy juvenile L. stylirostris (= Penaeus stylirostris) and in vitro assays on shrimp primary cell cultures and the fish cell line epithelioma papulosum cyprini (EPC). Toxic effects of ECPs were demonstrated for all pathogenic Vibrio strains tested both in vivo and in vitro, but for shrimp only; no effect was observed on the fish cell line. ECP toxicity for New Caledonian V. penaeicida was found only after cultivation at low temperature (20 degrees C) and not at higher temperature (30 degrees C). This points to the fact that 'Syndrome 93' episodes are triggered by temperature drops. The assays used here demonstrate the usefulness of primary shrimp cell cultures to study virulence mechanisms of shrimp pathogenic bacteria.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00000/10543/7600.pdf

DOI:10.3354/dao040101

Editor: | Inter-research
Relação: | http://archimer.ifremer.fr/doc/00000/10543/
Formato: | application/pdf
Fonte: | Diseases Of Aquatic Organisms (0177-5103) (Inter-research), 2000-03 , Vol. 40 , N. 2 , P. 101-107