C. I. Ayolabi1*, D. A. Ojo2, G. E. Armah3, I. Akpan2 and C. F. Mafiana2
1Department of Botany and Microbiology, University of Lagos, Nigeria.
2Dept. of Microbiology, University of Agriculture, Abeokuta, Nigeria.
3Noguchi Memorial institute for Medical Research, University of Ghana, Ghana.
