Granulomatous lesions in a wild mullet population from the eastern Ligurian Sea (Italy) : mycobacteriosis vs. pseudotuberculosis

© 2013 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Journal of fish diseases. - 1998. - 37(2014), 6 vom: 26. Juni, Seite 553-8
1. Verfasser: Varello, K (VerfasserIn)
Weitere Verfasser: Prearo, M, Serracca, L, Meloni, D, Rossini, I, Righetti, M, Pezzolato, M, Fioravanti, M L, Ercolini, C, Bozzetta, E
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Journal of fish diseases
Schlagworte:Journal Article Mycobacterium spp. Photobacterium damselae subsp. piscicida eastern Ligurian Sea granulomatous lesions wild mullets Bacterial Proteins
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520 |a Mycobacterium spp. and Photobacterium damselae subsp. piscicida are recognized as the most frequent causative agents of granulomatous lesions in fish. Although frequent episodes of mycobacterial infections have been reported in wild fish worldwide, only sporadic cases have been documented to date in Italy. To investigate for the presence of lesions referable to mycobacteriosis and to identify the mycobacterial species involved, a total of 159 wild mullets were fished from the eastern coast of the Ligurian Sea, killed and necropsied. Liver and spleen samples were collected from all fish for histopathological and microbiological analyses. Molecular investigations for identification of Photobacterium damselae subsp. piscicida were performed. Gross examination revealed granulomatous lesions in one animal; microscopically, 42.14% of fish displayed granulomas with various histological features, 19.50% resulted positive at Ziehl-Neelsen staining, and were confirmed as mycobacterial lesions by culture. The identified colonies were characterized as M. fortuitum, M. abscessus, M. flavescens, M. chelonae, M. septicum and M. nonchromogenicum. In all, 35% of animals resulted positive for Photobacterium damselae subsp. piscicida. These data suggest widespread mycobacterial infection also by Photobacterium damselae subsp. piscicida infections in wild fish. Moreover, the pathogenicity of some mycobacterial species, previously considered as saprophytic, was demonstrated 
650 4 |a Journal Article 
650 4 |a Mycobacterium spp. 
650 4 |a Photobacterium damselae subsp. piscicida 
650 4 |a eastern Ligurian Sea 
650 4 |a granulomatous lesions 
650 4 |a wild mullets 
650 7 |a Bacterial Proteins  |2 NLM 
700 1 |a Prearo, M  |e verfasserin  |4 aut 
700 1 |a Serracca, L  |e verfasserin  |4 aut 
700 1 |a Meloni, D  |e verfasserin  |4 aut 
700 1 |a Rossini, I  |e verfasserin  |4 aut 
700 1 |a Righetti, M  |e verfasserin  |4 aut 
700 1 |a Pezzolato, M  |e verfasserin  |4 aut 
700 1 |a Fioravanti, M L  |e verfasserin  |4 aut 
700 1 |a Ercolini, C  |e verfasserin  |4 aut 
700 1 |a Bozzetta, E  |e verfasserin  |4 aut 
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