Abstract
1 Department of Life Science, Chung-Ang University, Seoul 156-756, Republic of Korea
2 Korea Research Institute of Bioscience and Biotechnology, 52 Oeundong, Yusong, Daejeon 305-333, Republic of Korea
3 Environmental Biotechnology National Core Research Center, Gyeongsang National University, Jinju 660-701, Republic of Korea
4 Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China