Where does meiosis takes place during microsporogenesis?

In microspore mother cellls .

Microsporogenesis is the process of forming microspores inside a microsporangium (or pollen sac) by meiotic or reduction division. The formation of pollen grains from the microspores is termed microgametogenesis.

In the young anther, the sporogenous tissue is made up of a group of compactly arranged homogenous cells. These cells are diploid, meaning they have two sets of chromosomes. As the anther develops, the cells of the sporogenous tissue undergo meiosis, which is a type of cell division that reduces the number of chromosomes by half. This results in the formation of haploid microspores, which have only one set of chromosomes.

The microspores are arranged in tetrads, which are groups of four cells that are held together by a thin layer of callose. The microspores then undergo a period of maturation, during which they develop their own cell walls and other structures. Once the microspores are mature, they are released from the anther and can be transported to the female reproductive organs of another plant.

The process of microsporogenesis is essential for the sexual reproduction of flowering plants. It is the first step in the formation of pollen grains, which are the male gametes of flowering plants. Without microsporogenesis, flowering plants would not be able to reproduce sexually.