M. H. A. Hassan
Department of Botany and Microbiology, Faculty of Science, Assiut University, Egypt
M.A. Ismail
Department of Botany and Microbiology, Faculty of Science, Assiut University, Egypt
A.M. Moharram
Department of Botany and Microbiology, Faculty of Science, Assiut University, Egypt
A. Shoreit
Department of Botany and Microbiology, Faculty of Science, Assiut University, Egypt