Laboratory of Plant Hardiness Department of Horticultural Science and Plant Biological Sciences Program University of Minnesota St. Paul MN 55108 USA;
Visiting professor from Institute of Botany Chinese Academy of Sciences Beijing China.;
Visiting scientist from Beijing Agricultural University Beijing China.;
Department of Horticulture and Center for Gene Research and Biotechnology Oregon State University Corvallis OR97331 USA;
Ca2+-homeostasis; Ca2+-ATPase; ecto-Ca2+-ATPase; poplar dormancy; populus deltoides;