1. School of Applied Biosciences, Kyungpook National Univ.; Daegu 702-701 Republic of Korea
2. Department of Agricultural Biotechnology; National Academy of Agricultural Science (NAAS); Jeonju 560-500 Republic of Korea
3. Dep. of Applied Biological Chemistry; Iwate University; Iwate Morioka 020-8550 Japan
4. Dep. of Biotechnology; Chonnam National Univ.; Chonnam Yeosu 550-749 Republic of Korea
5. Division of Plant Sciences; Univ. of Missouri-Delta Research Center; Portageville MO 63873 USA