Institution: | (1) Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan;(2) Graduate School of Agriculture, Kobe University, Kobe 657-8501, Japan;(3) Faculty of Agriculture, Kagawa University, Kagawa, Japan;(4) Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Japan;(5) Faculty of Science, Shinshu University, Matsumoto, Japan;(6) Center for Bioresource Field Science, Kyoto Institute of Technology, Kyoto, Japan |