Abstract
Water, the most abundant compound in living systems, can accounts for more than 85% of the fresh weight of biological tissues. In the study of biological systems using ^1H-NMR, water is an important probe for looking into the fluctuation of biological activities. MRI detects free water in tissues and creates anatomical images of the tissues. Since the quality and mobility of cell-associated water is closely related to the condition of cells, MR images represent physiological condition of the tissue. In this paper, we show some aspects of diffusion imaging in plant science.