Fertilization Requires Communication: Signal Generation and Perception During Pollen Tube Guidance

摘要: The generation of novel hybrid lines is critically limited by the compatibility between pollen and pistil their ability to achieve successful seed formation. Fertilization in flowering plants requires transfer male gametes from grain egg contained within an ovule. This occurs via formation a tubular protrusion – tube. specialized structure grows extremely fast has complex task invade stigmatic stylar tissues receptive flower, find ovary ovule, subsequently release central cell double fertilization. Failure tube penetrate or its target results absence fertilization sterility. Understanding signals that regulate compatible interaction all female cells path therefore critical generate tools for breeders quest break species barriers produce hybrids. In this review, we will discuss cues guide tubes targets, mechanism growth how readjusts direction response these signals. addition, present vitro experimental strategies study tube’s and/or ovule’s capacity attract repulse growing