Enteric Bacteria Associated With American Cockroach PeripLanetaa Mericana With SpecialL Reference TO Escherichia Blattae

Abstract

This work was designed to study the prevalence of enteric bacteria in the intestines of the American cockroach Periplaneta americanawith special reference to Escherichia blattae. Sixty cockroaches collected from Khartoum province sewages were dissected. The intestines were cultured on MaCconkey’s agar. All intestines of cockroaches examined reveled enteric bacteria, with 38% of the isolates resembled E.blattae.Only three of the isolates showed100% similarity to E.blattae, the latter showed blue colors on chromogenic media while other ENTERIC bacteria like E.colishowed pink-mauve colors. It is concluded that the American cockroach P.americanaharbors E. blattaesuch findings could be confirmed by molecular studies in future work.