1. Division of Microbiology and Molecular Genetics, Institute of Biological Sciences, Faculty of Sciences, University of Malaya, Kuala Lumpur 50603, Malaysia
2. Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia
3. Centre for Research in Biotechnology for Agriculture, University of Malaya, Kuala Lumpur 50603, Malaysia