The research of some pathogenicity criterions in motile aeromonas species isolated from environmental and animal sources

In this study, Aeromonads prevalence in food and environmental samples which could cause especially acute gastroenterit, local or systemic infections were researched. Examined 64 food samples of %59,4 and 66 environmental samples of %53,03 were isolated as Aeromonas spp. Food isolates were defined 25 (%65,8) as A. hydrophila, 9 (%23,7) as A. caviae, 4 (%10,5) as A. veronii biovar sobria. Environmental isolates were defined 20 (%57,1) as A. hydrophila, 13 (%37,1) as A. veronii biovar sobria, two of them (%5,8) as A. caviae.It was thought that biochemical tests acted a part pathogenicity in Aeromonas which were ONPG, haemolysis, congo red binding, siderophore, lysine decarboxylase, ornithin decarboxylase and Voges-Proskauer tests were found positive respectively %86,8, %76,0, %97,3, %39,5, %79,0, %31,6, %52,6 in food isolates. Same tests were found positive respectively %60,0, %57,2, %97,2, %57,2, %82,8, %68,5, %42,8 in environmental isolates. Enzyme activity tests were made about pathogenicity which were DNAse, protease, phospholipase, lipase tests were found positive respectively %52,6, %68,5, %71,0, %73,6 in food isolates. Same tests were found positive respectively %68,6, %94,3, %68,4, %68,5 in environmental isolates.In the result of antibiogram tests it was seen that all food isolates were resistant to Cephalothin (%100,0) , Cefotaxime (%84,2 of the isolates), Meropenem (%29 of the isolates). Environmental isolates were found resistant to Cephalothin (%88,6 of the isolates), Cefotaxime (%57,2 of the isolates), Meropenem (%31,5 of the isolates).