1. Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, Egypt
2. Department of Botany, Faculty of Science, Damanhour University, Damanhour, Egypt
3. Department of Botany, Faculty of Science, Sohag University, Sohag, Egypt
4. Department of Botany, Faculty of Science, Al Fashir University, Darfur, Sudan
5. Department of Biology and Chemistry, Nipissing University, North Bay, Canada