S. Rehman, S. Nadeem, H. Zaman, M. S. Aslam and Z. Abbas
1Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, Lahore, Pakistan
2 Institute of Biochemistry and Biotechnology, University of the Punjab, Quaid-e-Azam Campus, Lahore, Pakistan