Researchers explore pollen fertilization mechanisms

A group of researchers from four countries has worked out exactly how a pollen tube, the plant cell that emerges from a grain of pollen, grows up to a thousand-fold to reach an ovule deep inside the flower. The key to this growth is an inflow and outflow of protons that creates electrical activity at the cell membrane and makes the cell grow. The results of the study will help scientists understand an array of related phenomena, such as seed production, the growth of fungi, and even how neurons develop.

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