1. Department of Biology, Washington University, St. Louis, Missouri 63130 (C.-N.N.C., G.V., T.-H.D.H.); Institute of Plant and Microbial Biology, Academia Sinica, Taipei 115, Taiwan (C.-N.N.C., T.-H.D.H.); Institute of Biomedical Science, National Chung Cheng University, Chia-Yi 621, Taiwan (H.-R.C.); and Department of Biological Sciences, Missouri University of Science and Technology, Rolla, Misso