Abstract
Tenacibaculosis, caused by Tenacibaculum maritimum, can result in severe mortalities of several marine fish species and thus represents a major challenge in Mediterranean aquaculture. Serological knowledge about this pathogen is required to develop effective preventive measures (vaccination). For this purpose, nineteen T. maritimum isolates, recovered between 2008 and 2010 from diseased European sea bass (Dicentrarchus labrax, L.) farmed at the Aegean Sea Coasts of Turkey, were characterised. All isolates produced flat, irregular, pale yellow colonies after incubation at 22-24°C for 48 hours, displayed pleomorphism with gliding motility with a size ranging between 4-20 × 0,5 μm and were otherwise biochemically identical to the T. maritimum NCIMB 2154T reference strain. The specific fluorescence appearance of the T. maritimum isolates were revealed by Indirect Fluorescent Antibody Technique (IFAT) which was also used to detect the bacterium in tissue samples. The presence of antibodies in the blood sera of the diseased fish against this pathogen was detected by using agglutination and Enzyme-Linked Immuno Sorbent Assay (ELISA). Dot-Blot testing identified all T. maritimum isolates as serotype O1. To our knowledge, this is the first report on O1 serotype T. maritimum isolates from sea bass farmed in Turkey
Highlights
Tenacibaculum maritimum is the causative agent of tenacibaculosis in marine fish [1,2,3]
At least three groups of T. maritimum isolates from marine fish were distinguished [20]. These groups are associated with the host origin: group 1 comprises the strains isolated from sole (Solea senegalensis and S. solea), group 2 consists of the isolates from sea bream and sea bass, group 3 corresponds to the turbot isolates
The first group comprised all strains isolated from sole and gilthead sea bream, the second comprised the isolates from yellowtail (Seriola quinqueradiata), Atlantic salmon (Salmo salar) and turbot (Scophthalmus maximus) and the third group is formed by one isolate from Pagrus major and one from Solea solea [21]
Summary
Tenacibaculum maritimum is the causative agent of tenacibaculosis in marine fish [1,2,3]. Since the first recognition of T. maritimum infection in farmed red and black sea bream (Pagrus major and Acantopagrus schlagelli) with high mortality in Japan, the presence of T. maritimum has become increasingly apparent in other marine fish species in Japan, USA, Canada, Australia, UK, France, Spain, Malta, Italy, Greece and Turkey [1,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18] This bacterium is difficult to distinguish from other phylogenetically and phenotypically similar species. The first group comprised all strains isolated from sole and gilthead sea bream, the second comprised the isolates from yellowtail (Seriola quinqueradiata), Atlantic salmon (Salmo salar) and turbot (Scophthalmus maximus) and the third group is formed by one isolate from Pagrus major and one from Solea solea [21]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
