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In order to accurately target the embryo sac and deliver the sperm cells, the pollen tube has to find an efficient path through the pistil and respond to precise directional cues produced by the female tissues. Although many chemical and proteic signals have been identified to guide pollen tube growth, the mechanism by which the tube changes direction in response to these signals is poorly understood...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.