P. Saensouk1*, N. Muangsan2, S. Saensouk3and P. Sirinajun1
1Department of Biology, Faculty of Science, Mahasarakham University, Mahasarakham 44150, Thailand.
2School of Biology, Institute of Science, Suranaree University of Technology, Nakhonratchasima 30000, Thailand.
3WalaiRukhavej Botanical Research Institute, Mahasarakham University, Mahasarakham 44150, Thailand.