First isolation of Shewanella putrefaciens from freshwater fish – a potential new pathogen of fish
نویسنده
چکیده
Bacterial isolates from common carp (Cyprinus carpio L.) and rainbow trout (Oncorhynchus mykiss) were identified by the API 20E system (bioMérieux). Twenty one isolates were identified as Shewanella putrefaciens. These isolates were tested for selected biochemical and cultural characteristics. Pathogenicity of two isolates (Pt38 and K116) for freshwater fish was assayed. Biochemical characteristics of most isolates corresponded to S. putrefaciens described by Saeed et al. (1987), but the isolates tested did not require NaCl to growth. Following intraperitoneal injection of isolates Pt38 or K116, fish developed disease signs with 33-50% mortality.
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Shewanella putrefaciens – a new opportunistic pathogen of freshwater fish
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