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Meiosis and Gametophyte Development in Flowering Plants

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Meiosis Microspore Tetrad Cells of the Sporogenous tissue Each cell becomes a potential Microspore Mother Cell Microsporogenesis Microsporangia Meiosis One functional Megaspore From the Placenta arise the Megasporangia also called ovules Single Megaspore Mother Cell Megasporogenesis Placenta, inside the ovarian cavity inside the ovary.
The yellowish powdery pollen grains are ready for pollination Pollination is carried out by the pollinating agents Microspores separate from each other and develop into Pollen grains Dehiscence of anther and release of pollen grain Microsporogenesis Microspores clustered as Tetrads An embryo sac at maturity has 7 cells and 8 nuclei Characteristic distribution of cells within the embryo sac Megaspore develops into the female gametophyte Monosporic development in wheat paddy, mango Megasporogenesis One functional megaspore, three degenerate

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Meiosis and Gametophyte Development in Flowering Plants

  • 1.
  • 2.
  • 3. Meiosis Microspore Tetrad Cells of the Sporogenous tissue Each cell becomes a potential Microspore Mother Cell Microsporogenesis Microsporangia Meiosis One functional Megaspore From the Placenta arise the Megasporangia also called ovules Single Megaspore Mother Cell Megasporogenesis Placenta, inside the ovarian cavity inside the ovary.
  • 4. The yellowish powdery pollen grains are ready for pollination Pollination is carried out by the pollinating agents Microspores separate from each other and develop into Pollen grains Dehiscence of anther and release of pollen grain Microsporogenesis Microspores clustered as Tetrads An embryo sac at maturity has 7 cells and 8 nuclei Characteristic distribution of cells within the embryo sac Megaspore develops into the female gametophyte Monosporic development in wheat paddy, mango Megasporogenesis One functional megaspore, three degenerate