TÃƒÂƒÃ†Â’ÃƒÂ‚Ã‚Â¼lay AKAYLI, ÃƒÂƒÃ†Â’ÃƒÂ‚Ã¢Â€Â“zgÃƒÂƒÃ†Â’ÃƒÂ‚Ã‚Â¼r ÃƒÂƒÃ†Â’ÃƒÂ‚Ã¢Â€Â¡ANAK, ÃƒÂƒÃ†Â’ÃƒÂ‚Ã¢Â€Â¡iÃƒÂƒÃ¢Â€ÂžÃƒÂ‚Ã…Â¸dem ÃƒÂƒÃ†Â’ÃƒÂ‚Ã…Â“RKÃƒÂƒÃ†Â’ÃƒÂ‚Ã…Â“
The aim of this study was to determine the lipopoly-saccharide (LPS) profiles of pathogenic Gram-negative bacteria recovered from cultured rainbow trout (Oncorhynchus mykiss) in different regions of Turkey. For this purpose, LPS samples were obtained from 10 bacterial isolates of Vibrio anguillarum, Aer-omonas hydrophila, A. schubertii, Pseudomonas fluo-rescens and Yersinia ruckeri recovered from diseased fish. LPS profiles were determined by using Sodium Dodecyl Sulphate Polyacrilamide Gel Electrophoresis (SDS-PAGE) and silver-nitrate staining method. Re-sults of the study demonstrated that LPS profiling is a useful tool for characterization of these bacteria and geographic discrimination of their isolates.