1. Department of Microbiology, University of Illinois, Urbana, IL 61801, USA
2. Energy Bioscience Institute, University of Illinois, Urbana, IL 61801, USA
3. Department of Environmental Sciences, COMSATS University Islamabad, Tobe Campus, Abbottabad 22060, Pakistan
4. Institute for Genomic Biology, University of Illinois, Urbana, IL 61801, USA
5. Department of Biology, College of Science, University of Bahrain, Sakhir 32038, Bahrain