Isolation and Preservation of Viable Sperm Cells of Ulmus pumila F-Actin Visualization in Generative and Sperm Cells of Living Pollen of Rice Using a GFP-Mouse Talin Fusion Protein Cytoplasmic Inheritance of Sweet Potato: with Respect to the Study of Plastids and Mitochondria and the Existence of Their DNA in Sperm Cells Purification of the Specific Plasma Membrane Proteins from the Surface of Sperm Cells of Zea mays Purification of Plasma Membrane of Maize Sperm Cells by Aqueous Polymer Two-Phase partitioning Representative cDNA Library from Isolated Rice Sperm Cells