1. Division of Biotechnology, Safetey, Environment and Life Science Institute, College of Environmental & Bioresources Sciences, Chonbuk National University, Iksan, 570-752, Korea
2. Department of Horticulture, College of Agriculture & Life Sciences, Chonbuk National University, Jeonju, 561-756, Korea
3. Division of Biotechnology, Chonbuk National University, Iksan, 570-752, Korea