Investigation of the Antibacterial Effect of Astaxanthin and the Prevalence of Virulence and Antimicrobial Resistance Genes of Aeromonas spp.

In the study, in addition to antibacterial effect of astaxanthin on Aeromonas hydrophila and A. sobria strains, presence virulence genes (Aero, act, ast, hylA) antibiotic resistance (tetC sulI) strains was investigated. Antibiotic profiles were also investigated as part study. Strains identified by conventional biochemical tests PCR assay using a 16S rDNA primer pair specific for hydrophila. According results bacteriological molecular studies, two six four them sobria. The Aero gene act found all while ast hylA detected only strains. All resistant chloramphenicol, tetracycline, nalidixic acid, ampicillin standard disk diffusion test. Although showed tetracycline moderate oxytetracycline antibiogram tests, tetC not sulI acetone solutions containing 0.1 g 0.5 have an Acetone g, 1.0 effects It that prepared with methanol distilled water had no