Abstract

PUTATIVE VIRULENCE FACTOR AND ANTIMICROBIAL SUSCEPTIBILITY OF LOCALLY BACTERIA AEROMONAS HYDROPHILA ISOLATED FROM SURFACE TIGRES RIVER IN BAGHDAD, IRAQ

*Rasha Mohamed Sajet AL-Oqaili, Sura Mohammed Sachit and Ahmed Mawlood Shieer

Abstract

The genus Aeromonas (family Aeromonadaceae) are medically important, Gram-negative, rod-shaped and are ubiquitous in aquatic environments.25 environmental isolates positive tested for,biochemical including, oxidase, negative string test,growth in 0 and 1 % NaCl, , growth in 7 % NaCl. All isolates of environmental A. hydrophila were a positive result Lecithinase , DNase, protease produces and hemolysin . The results showed that all isolates were sensitive to chloramphenicol, tetracycline. Resistance to streptomycin, cephalothin erythromycin and nalidixic acid,92%,80%,36% and 20% respectively.A. hydrophila caused, villi atrophy and fibrosis with inflammatory cells reached to mucosa , in liver , the effect hepatocytes in apoptosis with pyknotic nuclei and wide spread necrosis of hepatocytes with mononuclear leucocytes infiltration of the area.

Keywords: Isolates locally Iraq, Antimicrobial, Histopathology, virulence factor, Aeromonas hydrophila.