A Dynamic Role for the Stylar Matrix in Pollen Tube Extension

摘要: Publisher Summary Sexual reproduction in flowering plants occurs by the processes of pollination and fertilization. Pollination involves transfer pollen grain (the male gametophyte) to stigma, its adhesion, hydration, production a tube. The tube extends through gynecium (stigma, style, ovary), carrying sperm cells that are delivered ultimately embryo sac female within ovule. extension follows defined secretory path called “transmitting tract” or “stylar matrix.” Pollen is typically restricted this specialized extracellular matrix (ECM). stylar ECM supports growth produced on surface along which travels. secretions transmitting tract frequently described as mucilage fluid composed various ingredients. In general, these include sugars, amino acids, peptides, phenolic compounds, fatty lipids, glycolipids.