March 2018

Groundnut (Arachis hypogaea L.) and cowpea (Vigna unguiculata L. Walp) growing in Ethiopia are nodulated by diverse rhizobia

A total of eighty one (81) rhizobial isolates were recovered from root nodules of cowpea (Vigna unguiculata L. Walp.) and groundnut (Arachis hypogaea L.) grown in soils collected from eight different sites (Hawassa, Wondogenet, Chofa, Badawacho, Bodity, Gofa, Ziway, and Alemtena) in Ethiopia with no known history of inoculation. The test isolates together with seven reference strains belonging to five genera including...

Author(s): Tulu Degefu, Endalkachew Wolde-meskel, Zikie Ataro, Asnake Fikre, Tilahun Amede and Chris Ojiewo  

March 2018

Virulence and antimicrobial susceptibility profile of Listeria monocytogenes isolated from frozen vegetables available in the Egyptian market

Listeria monocytogenes is among the most important foodborne pathogens. It may enter food-processing environments through raw materials, handlers or equipment and may persist due to ineffective cleaning or sanitation. The bacterium can be isolated from both frozen vegetables and fresh food substances. This study aimed to estimate the prevalence of L. monocytogenes in spices and frozen vegetables and screen for some...

Author(s): Rasha I. Mohamed , Mohamed A. Abdelmonem and Heba M. Amin

March 2018

Prevalence and virulence determinants of Escherichia coli isolated from raw cow's milk

Raw milk plays an important role in the survival and transport of pathogenic bacteria including Escherichia coli strains. This study was performed to determine the existence of E. coli in raw milk intended for human consumption and its associated virulence determinants. In this context, a total of 232 milk samples were obtained from different dairy shops located at Mansoura city and its surrounding villages. Milk...

Author(s): Gamal Younis, Amal Awad and Reem Ghabour  

March 2018

Genotypic detection of the virulence factors of uropathogenic Escherichia coli isolated from diarrheic and urinary tract infected patients in Khartoum State, Sudan

This study aimed to identify some important virulence factors, including pap, fim, sfa, aer and hly genes, typical of uropathogenic Escherichia coli (UPEC) in isolates collected from diarrheic and urinary tract infected patients in Khartoum State by multiplex polymerase chain reaction (PCR) assay. A total of 100 clinical specimens (50 urine and 50 diarrhea) were collected. Samples were cultured and identified by...

Author(s): Husam Eldin M. Hassan, Hisham N. Altayb, Mogahid M. El Hassan, and Miskelyemen A. Elmekki,