1. Department of Environmental Sciences, Faculty of Science and Forestry, University of Eastern Finland, Yliopistonranta 1, P.O. Box 1627, FI-70211 Kuopio, Finland, Laboratory of Biophysics and Wageningen NMR Centre, Wageningen University, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, Department of Physical Chemistry, Faculty of Pharmacy, Warsaw Medical University, Zwirki i Wigury 61, 02-091 Warsaw, Poland, and Laboratory of Plant Physiology, Wageningen University, Radix-West, Building no. 107...