Protective yeasts control V. anguillarum pathogenicity and modulate the innate immune response of challenged zebrafish (Danio rerio) larvae
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2016Metadata
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Caruffo, Mario
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Protective yeasts control V. anguillarum pathogenicity and modulate the innate immune response of challenged zebrafish (Danio rerio) larvae
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© 2016 Caruffo, Navarrete, Salgado, Faúndez, Gajardo, Feijóo, Reyes-Jara, García and Navarrete. We investigated mechanisms involved in the protection of zebrafish (Danio rerio) larvae by two probiotic candidate yeasts, Debaryomyces hansenii 97 (Dh97) and Yarrowia lypolitica 242 (Yl242), against a Vibrio anguillarum challenge. We determined the effect of different yeast concentrations (104-107 CFU/mL) to: (i) protect larvae from the challenge, (ii) reduce the in vivo pathogen concentration and (iii) modulate the innate immune response of the host. To evaluate the role of zebrafish microbiota in protection, the experiments were performed in conventionally raised and germ-free larvae. In vitro co-aggregation assays were performed to determine a direct yeast-pathogen interaction. Results showed that both yeasts significantly increased the survival rate of conventionally raised larvae challenged with V. anguillarum. The concentration of yeasts in larvae tended to increase with yeast inoculu
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URI: https://repositorio.uchile.cl/handle/2250/166922
DOI: 10.3389/fcimb.2016.00127
ISSN: 22352988
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Frontiers in Cellular and Infection Microbiology, Volumen 6, Issue OCT, 2018,
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