Hello there!

Greetings!

Pollen grains develop in the stamen, which consists of a filament supporting the anther. The cross-section has four microsporangia. The central cells of the anther, the pollen mother cells (meiocytes), differentiate and become selectively isolated from the mother plant through callose secretion by the meiocyte cytoplasm. The pollen mother cells undergo meiosis to form tetrads. The uni- nucleate young microspores are released from the tetrad, the microspores undergo an asymmetric division to produce the vegetative and generative nucleus.The generative divides to produce two haploids, the non-motile and unicellular male gametes.

Thankyou