Why tapetum is binucleated and how?
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Meghna Thapar 5 years, 3 months ago
Tapetal cells are very large cells with more than one nucleus. They assist with pollen grain growth and development. Tapetal cells undergo endomitosis where the nucleus in the nuclear membrane splits, but cytokinesis does not happen. They become bi / multinucleate because of this. The tapetum is a specialised layer of nutritive cells found within the anther, of flowering plants, where it is located between the sporangenous tissue and the anther wall. Tapetum is important for the nutrition and development of pollen grains, as well as a source of precursors for the pollen coat.
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