Partial Evaluation of Autochthonous Probiotic Potential of the Gut Microbiota ofSeriola lalandi
Author
dc.contributor.author
Jorquera Ramírez, Carolina
Author
dc.contributor.author
Rojas, Rodrigo
Author
dc.contributor.author
Romero Ormazábal, Jaime
Admission date
dc.date.accessioned
2020-08-21T14:26:57Z
Available date
dc.date.available
2020-08-21T14:26:57Z
Publication date
dc.date.issued
2020
Cita de ítem
dc.identifier.citation
Probiotics & Antimicro. Prot. (2020) 12:672–682
es_ES
Identifier
dc.identifier.other
10.1007/s12602-019-09550-9
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/176490
Abstract
dc.description.abstract
Seriola lalandiis an economically important species that is globally distributed in temperate and subtropical marine waters. Aquaculture production of this species has had problems associated with intensive fish farming, such as disease outbreaks or nutritional deficiencies causing high mortality. Intestinal microbiota are involved in many processes that benefit a host, such as disease control, stimulation of the immune response, and the promotion of nutrient metabolism. The aim of this study is to evaluate the in vitro probiotic properties of bacteria isolated from the intestinal content of wildSeriola lalandi. The probiotic potential was evaluated in terms of (i) the antimicrobial activity against vibrios causing outbreaks in farmed fish; (ii) the ability to stimulate genes related to an innate immune response in fish; and (iii) antibiotic resistance. Nineteen isolates identified asPseudomonas,Shewanella,Psychrobacter, andAcinetobactershowed antimicrobial activity and significant relative expression of cytokines, serum amyloid A protein (SAA), hepcidin, and lysozyme. A positive correlation was observed between the levels of expression and the bacterial load after 24 h of exposure.Pseudomonasisolates showed a level of antibiotic resistance. In conclusion, isolates of the generaShewanella,Psychrobacter, andAcinetobactercould serve as potential probiotics inS. lalandiculture.