1. 1Department of Botany and Microbiology, College of Science, King Saud University, Riyadh11451, Saudi Arabia.
2. 2Department of Biology, Jumum college university, Umm Al-Qura University, P.O Box 7388, Makkah 21955, Saudi Arabia.
3. 3Center of Molecular Genetics, University of Karachi, Pakistan.