M.Sc.

Fifty different soil samples (contaminated and uncontaminated with hydrocarbons compounds) were collected from different places in Iraq. Twenty five isolates showed the ability to  utilize methanol as a sole source of carbon and energy. These isolates were repeatedly tested in the defined medium supplemented with methanol to ensure methanol utilizing ability, then only 12 isolates that appeared, really have  the ability to utilize methanol and were named as (HK1,HK2,……,HK12), it was found that these isolates were varied in their growth density in utilizing methanol.

     In this study, one hundred stool samples were collected from children under age of five years of both sexes suffering from diarrhea infection cases from Al-Kadhimia and Al-Elwia hospitals in Bagdad governorate, and from Ibn-Ghaswan hospital in Basra governorate. Stool samples were cultured on Salmonella-Shigella agar plates, and then 38 bacterial isolates were obtained. All these isolates were subjected to morphological, microscopically examinations and biochemical tests.