1. Department of Microbiology Quaid‐i‐Azam University Islamabad Pakistan
2. State Key Laboratory of Cryospheric Science, Northwest Institute of Eco‐Environment and Resources Chinese Academy of Sciences Lanzhou China
3. Department of Oral Biology, College of Dentistry University of Florida Gainesville Florida USA
4. Department of Biological Sciences, Faculty of Basic and Applied Sciences International Islamic University Islamabad Pakistan