Gametophytic structure is the adjustment of microspore mother cell into the dust grain. The dust grain develops into the male gametophyte on germination which is started before fertilization happens.
Inside the microsporangium, Pollen mother cell (PMC) goes through meiosis and results in four microspores which at last develop into dust grains. The internal layer called tapetum supports the creating microspores.
The dust grains comprise of two cells-a vegetative cell and a generative cell. When the microsporangium is developed it blasts and deliveries the dust from the anther.
The dust grain comprises of two layers.
a. the external thick layer is known as the exine,
b. the internal slim layer is called intine which shields the dust from harm.
Male gametophyte advancement can be ordered into two phases:
Pre-fertilization improvement and post-fertilization advancement.
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Gametophytic structure is the adjustment of microspore mother cell into the dust grain. The dust grain develops into the male gametophyte on germination which is started before fertilization happens.
Inside the microsporangium, Pollen mother cell (PMC) goes through meiosis and results in four microspores which at last develop into dust grains. The internal layer called tapetum supports the creating microspores.
The dust grains comprise of two cells-a vegetative cell and a generative cell. When the microsporangium is developed it blasts and deliveries the dust from the anther.
The dust grain comprises of two layers.
a. the external thick layer is known as the exine,
b. the internal slim layer is called intine which shields the dust from harm.
Male gametophyte advancement can be ordered into two phases:
Pre-fertilization improvement and post-fertilization advancement.