1. Research Institute for Bioresources, Okayama University, Chuo 2–20–1, Kurashiki 710–0046, Japan (S.J.A., M.S., H.O., H.M.);
2. Department of Horticulture, Biotechnology Research Institute, College of Agriculture, Chonnam National University, Kwangju 500–757, Korea (S.J.A, G.C.C.); and
3. Bio-Oriented Technology Research Advancement Institution, Omiya 331–8637, Japan (H.O.)