1 Pathogen Biology, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud PO, Thiruvananthapuram, Kerala, 695014, India.
2 Manipal Academy of Higher Education, Tiger Circle Road, Madhav Nagar, Manipal, Karnataka, 576104, India.
3 Department of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Karakambadi Road, Tirupati, Andhra Pradesh, 517507, India.
4 Pathogen Biology, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud PO, Thiruvananthapuram, Kerala, 695014, India. arajavelu@rgcb.res.in.