1. Dept. of Cell and Molecular Biology; Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia; 43400 Serdang Selangor Malaysia
2. Dept. of Microbiology; Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia; 43400 Serdang Selangor Malaysia
3. Inst. of Bioscience, Universiti Putra Malaysia; 43400 Serdang Selangor Malaysia
4. Genetics and Molecular Biology; Centre for Research in Biotechnology for Agriculture, Inst. of Biological Sciences, University of Malaya; 50603 Kuala Lumpur Malaysia