August 2013

Two genotypes of Xanthomonas oryzae pv. oryzae virulence identified in West Africa

Bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae (Xoo), is a very destructive rice disease worldwide. The aim of the present study was to examine if the Xoo virulence pathotypes obtained using phenotypic pathotyping could be confirmed using molecular approach. After screening of 60 Operon primers with genomic DNA of two Xoo isolates (virulent pathotype, Vr and mildly virulent pathotype, MVr), 12...

Author(s): Onasanya Amos, M. M. Ekperigin, A. Afolabi, R. O. Onasanya, Abiodun A. Ojo and I. Ingelbrecht

August 2013

The genetic relatedness of drug resistant E.coli isolates of human and animal origin in Nigeria

Molecular epidemiology of human and animal ecovariants of Escherichia coli from different regions of Nigeria were studied using their antibiotic susceptibility patterns, plasmid profile and pulsed-field gel electrophoresis (PFGE). E. coli was isolated using eosin methylene blue agar (EMB) and identified by conventional microbiological technique. The isolates were tested against 14 antibiotics using the disc diffusion...

Author(s): Chijioke A. Nsofor, Christian U. Iroegbu, Douglas R. Call and Margaret A. Davies