The probiotics Vibrio diabolicus (Ili), Vibrio hepatarius (P62), and Bacillus cereus sensu stricto (P64) colonize internal and external surfaces of Penaeus vannamei shrimp …

Abstract:

The vibrios carrying the pirA and pirB toxin genes cause acute hepatopancreatic necrosis disease (AHPND) in cultivated shrimp, significantly affecting the yield. The use of probiotic strains is a promising strategy to prevent vibriosis in shrimp cultures. The microbial consortium formulated with three strains, Vibrio diabolicus (Ili strain), Vibrio hepatarius (P62 strain), and Bacillus cereus sensu stricto (P64 strain), is used to control vibriosis. Despite the effectiveness of these probiotics, until now there is not a description of the cellular structures necessary to help shrimp colonization, an important process to exclude pathogenic vibrios. Initially, the three probiotic strains were characterized by scanning electron microscopy, which allowed us to observe that Ili has numerous flagella and P62 has numerous fimbriae, while P64 has both flagella and fimbriae. Next, the colonization capacity of the three probiotic strains in P …

Año de publicación:

2022

Keywords:

Fuente:

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