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dc.contributorFacultad de Veterinariaes_ES
dc.contributor.authorCarbajal González, María Teresa
dc.contributor.authorFregeneda Grandes, Juan Miguel 
dc.contributor.authorGonzález Palacios, Concepción
dc.contributor.authorAller Gancedo, José Miguel
dc.contributor.otherSanidad Animales_ES
dc.date2013-04-29
dc.date.accessioned2018-12-27T00:09:20Z
dc.date.available2018-12-27T00:09:20Z
dc.date.issued2018-12-27
dc.identifier.citationDiseases of aquatic organisms, 2013, vol. 104, n. 1es_ES
dc.identifier.urihttp://hdl.handle.net/10612/9280
dc.descriptionP. 35-44es_ES
dc.description.abstractBiological control of saprolegniosis with bacteria might be an alternative to the use of chemical compounds. Among criteria for the selection of such bacteria are their absence of pathogenicity to fish and their ability to prevent adhesion of the pathogen to the skin mucus. The pathogenicity to rainbow trout of 21 bacterial isolates with in vitro inhibitory activity against Saprolegnia parasitica was studied. Fifteen of the isolates, identified as Aeromonas sobria, Pantoea agglomerans, Pseudomonas fluorescens, Serratia fonticola, Xanthomonas retroflexus and Yersinia kristensenii, were non-pathogenic when injected into rainbow trout. Their capacity to adhere to the skin mucus of male and female brown trout and to reduce the adhesion of S. parasitica cysts under exclusion, competition and displacement conditions was tested. The 15 bacterial isolates showed a low adhesion rate, ranging between 1.7% (for an A. sobria isolate) and 15.3% (a P. fluorescens isolate). This adhesion was greater in the case of mucus from male brown trout than from females. Similarities in the adhesion to male mucus and other substrates and correlation to that observed to polystyrene suggest that adhesion to skin mucus does not depend on the substrate. A high percentage (88.9%) of the S. parasitica cysts adhered to the skin mucus of male brown trout. Almost all of the bacteria reduced this adhesion ratio significantly under exclusion and competition conditions. However, only half of the isolates displaced cysts from skin mucus, and more bacterial cells were necessary for this effect. A novel method to study the adhesion of S. parasitica cysts to skin mucus of trout and their interactions with inhibitory bacteria is described.es_ES
dc.languageenges_ES
dc.publisherInter-Researches_ES
dc.subjectSanidad animales_ES
dc.subjectVeterinariaes_ES
dc.subjectZoologíaes_ES
dc.subject.otherTruchases_ES
dc.subject.otherSaprolegnia parasíticaes_ES
dc.subject.otherFlora cutáneaes_ES
dc.titleAdhesion to brown trout skin mucus, antagonism against cyst adhesion and pathogenicity to rainbow trout of some inhibitory bacteria against Saprolegnia parasiticaes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.description.peerreviewedSIes_ES


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