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Morphopathological features of a severe ulcerative disease outbreak associated with Tenacibaculum maritimum in cultivated sole, Solea senegalensis (L.).
Vilar, P; Faílde, L D; Bermúdez, R; Vigliano, F; Riaza, A; Silva, R; Santos, Y; Quiroga, M I.
Affiliation
  • Vilar P; Department of Small Animal Clinical Sciences, Michigan State University, Veterinary Medical Center, East Lansing, MI, USA.
J Fish Dis ; 35(6): 437-45, 2012 Jun.
Article in En | MEDLINE | ID: mdl-22506758
ABSTRACT
This study describes morphopathologic changes in naturally infected farmed Senegalese sole affected by tenacibaculosis caused by Tenacibaculum maritimum. Macroscopic observation, in addition to light microscopy and scanning electron microscopy, was used to study the lesions. Main lesions were characterized by complete loss of epidermis and dermis, as well as extensive necrosis of muscle layers. Mild-to-moderate inflammatory response with the presence of macrophages was noted around hyaline degenerated muscle cells. Gram-negative filamentous bacteria could be detected only at the dermis. Under scanning electron microscopy, filamentous bacteria located over the scales without epithelium could be observed. These findings together with the isolation and PCR detection of the bacteria in kidney and skin tissues suggest that once the bacteria reach the dermis, probably through eroded epidermis, they are able to proliferate and produce enzymes that are responsible for the damage in the underlying tissues.
Subject(s)

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Flatfishes / Disease Outbreaks / Flavobacteriaceae Infections / Tenacibaculum / Fish Diseases Type of study: Risk_factors_studies Limits: Animals Country/Region as subject: Europa Language: En Journal: J Fish Dis Journal subject: BIOLOGIA / MEDICINA VETERINARIA Year: 2012 Document type: Article Affiliation country: United States

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Flatfishes / Disease Outbreaks / Flavobacteriaceae Infections / Tenacibaculum / Fish Diseases Type of study: Risk_factors_studies Limits: Animals Country/Region as subject: Europa Language: En Journal: J Fish Dis Journal subject: BIOLOGIA / MEDICINA VETERINARIA Year: 2012 Document type: Article Affiliation country: United States