Degeneration of Nucleus and Ultracytochemical Localization of Hydrolytic Enzymes during Starchy Endosperm Development in Rice Ultrastructural Localization of Cellulase Acitvity in Lytic Root Cortical Cells during Aerenchyma Formation of Flooded Maize Ultracytochemical Localization of Calcium in the Pollen Tube Track of Cotton Gynoecium Ultracytochemical Localization of ATPase Activity in the Degenerating Nucellar Cells of Wheat During Degeneration Ultracytochemical Localization of Calcium in the Stigma, Style and Micropyle of Sunflower Ultracytochemical Localization of Ca 2+ in the SomaticEmbryogenesis of Xanthocera sorbifolia The Ultracytochemical Localzation of Acid Phosphatase Activity in Wheat During Fertilization The structure and ultracytochemical localization of ATPase in stigma and style of buckwheat Ultracytochemical Localization of ATPase and Cytochrome Oxidase in the Anther from K-77(2) A and 77(2)B