Explain the stages involved in the maturation of microspore into male gametophyte ?
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• The nucleus of each microspore mother cell undergoes meiosis or reduction division and gives rise to four haploid nuclei. This process is called microsporogenesis.
• The four nuclei are arranged tetrahedrally and soon get enclosed with cell walls. These are now called microspores or pollen grains.
• These microspores fiurther divide once by mitosis to form two-celled microspore.
differentiates into pollen grain.
• Each microspore The pollen grains soon dry up and become powdery while the tapetum gets absorbed.
• The partition walls between the sporangia get destroyed and the microspores are liberated by the dehiscence of the anther.
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