Phylogeny and evolution of charophytic algae and land plants Osmotic Stress Decreases the Activity of ATPase Associated with the Root Cap Plasmodesmata in Zea mays Plasmodesmata: Dynamic Channels for Symplastic Transport Ultrastructural Aspects of Plasmodesmata and Cytoplasmic Bridges During Spermatogenesis in Funaria hygrometrica The Effects of Cr6+‘s Pollution on the Ultrastructure of Hydrocharis dubia and Cell Membrane of H.verticillata,Brasenia schreberi,Trapa bispinosa Cytochemical Localization of Pectinase Activity in Pollen Mother Cells of Tobacco During Meiotic ProphaseⅠand Its Relation to the Formation of Secondary Plasmodesmata and Cytoplasmic Channels Viroids: Small Probes for Exploring the Vast Universe of RNA Trafficking in Plants Control of Directional Macromolecular Trafficking Across Specific Cellular Boundaries: A Key to Integrative Plant Biology Formation of Interfamilial Cell Symplast During Cell Co-Culture in Vitro Formation and Development of Embryo Sac Wall in Rice Ultrastructural Changes of Plasmodesmata in Staminal Hairs of Setcreasea purpurea During Development Confocal Fluorescence Microscopic Observation on the Transcellular Distribution of Actin Filaments in the Epidermis of Garlic Clove Sheath Starch Mobilization in Ultradried Seed of Maize (Zea mays L.) During Germination Transmission and Scanning Electron Microscopic Observations on the Plasmodesmatal Channels Between the Pollen Mother Cells of Lily Plasmodesmal Dynamics in Both Woody Poplar and Herbaceous Winter Wheat Under Controlled Short Day and in Field Winter Period Evidence of Ultrastructure and Physiology of F-actin as Component of Plasmodesmata Ultrastructural Observation on Embryo Sac Development in Phaius tankervilliae (Aiton)Bl.