1 Chemistry of Natural and Microbial Products Department, Pharmaceutical Industries Research Division, National Research Centre, Dokki, Giza, 12622, Egypt.
2 Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt.
3 Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt. salemsalahsalem@azhar.edu.eg.