1. Department of Agricultural Microbiology, Tamilnadu Agricultural University, Coimbatore 641 003, Tamilnadu, India
2. Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore 117604, Singapore
3. Department of Biology, Harvey Mudd College Claremont, CA 91711, USA
4. Department of Microbiology, Indira Gandhi College of Arts and Science, Kathirkamam 605009, Pondicherry, India