Differential susceptibility of white bass (Morone chrysops), striped bass (Morone saxatilis) and hybrid striped bass (M. chrysops × M. saxatilis) to Flavobacterium columnare and effects of mucus on bacterial growth and biofilm development.

Autor: Farmer BD; Harry K. Dupree Stuttgart National Aquaculture Research Center, United States Department of Agriculture, Agricultural Research Service, Stuttgart, AR, USA., Fuller SA; Harry K. Dupree Stuttgart National Aquaculture Research Center, United States Department of Agriculture, Agricultural Research Service, Stuttgart, AR, USA., Beck BH; Aquatic Animal Health Research Unit, United States Department of Agriculture, Agricultural Research Service, Auburn, AL, USA., Abernathy JW; Harry K. Dupree Stuttgart National Aquaculture Research Center, United States Department of Agriculture, Agricultural Research Service, Stuttgart, AR, USA., Lange MD; Aquatic Animal Health Research Unit, United States Department of Agriculture, Agricultural Research Service, Auburn, AL, USA., Webster CD; Harry K. Dupree Stuttgart National Aquaculture Research Center, United States Department of Agriculture, Agricultural Research Service, Stuttgart, AR, USA.
Jazyk: angličtina
Zdroj: Journal of fish diseases [J Fish Dis] 2021 Feb; Vol. 44 (2), pp. 161-169. Date of Electronic Publication: 2020 Oct 02.
DOI: 10.1111/jfd.13272
Abstrakt: Columnaris disease generates substantial losses of many freshwater fish species; one is the hybrid striped bass. The ubiquitous aquatic bacterium Flavobacterium columnare can be highly effective in biofilm formation on fish skin and gills. Previous research showed a difference between columnaris disease susceptibility of hybrid striped bass (Morone saxatilis × M. chrysops) and white bass (M. chrysops). To understand these differential susceptibilities and possible mucosal relationship, we assessed total bacterial growth and biofilm formation with mucus derived from each moronid parental species: white bass and striped bass (M. saxatilis). Differential susceptibility was confirmed of the other parent species, the striped bass (M. saxatilis). In addition to intraspecies investigations, individual hybrid striped bass mucosal affects were also studied for deferential responses to bacterial growth and biofilm formation. Species- and concentration-dependent differences were detected in the total growth of the bacteria to host mucus. Our data suggest that bass mucus can significantly affect biofilm formation with the F. columnare isolate tested. There appears to be a correlation between the bacteria's response of growth and biofilms and bass species susceptibility. This study provides insight into our understanding of the host-pathogen interaction between F. columnare and moronids.
(Published 2020. This article is a U.S. Government work and is in the public domain in the USA.)
Databáze: MEDLINE
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