POLLEN MOTHER CELL Meaning and
Definition
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Pollen mother cell refers to a specific type of cell found in the anther of flowering plants, specifically in the male reproductive organ known as the stamen. It is also known as a microspore mother cell or a microsporocyte. The main function of the pollen mother cell is to undergo meiosis, a specialized type of cell division, resulting in the production of haploid cells known as microspores.
During meiosis, the pollen mother cell undergoes a series of divisions, resulting in the formation of four microspores. These microspores contain half the normal number of chromosomes found in other cells of the plant, making them haploid. Each of these microspores has the potential to develop into a male gametophyte, which is essential for sexual reproduction in plants.
After meiosis, the microspores are released from the pollen mother cell and then undergo a process of maturation, which includes the development of a tough outer coat to protect them. Once mature, the microspores are capable of being dispersed from the anther and transported to the female reproductive organ, known as the pistil, where they play a central role in fertilization.
In summary, the pollen mother cell is a specialized cell within the stamen of flowering plants that undergoes meiosis to produce microspores. These microspores serve as the starting point for the formation of the male gametophyte and ultimately play a vital role in the fertilization process of flowering plants.
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