Question

explain the development of male gametophyte

Answer 1

The functions of the gametophytes are the production of the 'sperm cells and the female cells, and their union in fertilization. In flowering plants, the pollen grain is the male gametophyte and the embryo sac is the female gametoph yte. The male gametophyte completes its early development within the anther

Answer 2

Development of Male Gametophyte

• The development of pollen grains or microspores in the microsporangium of an anther is called microsporogenesis.

• Each lobe contain an elongated microsporangium.

• Within the four lobes, some of the hypodermal cells at each corner become differentiated to form archesporium.

• Each archesporial cell divides to form a primary parietal cell to the epidermis and primary sporogenous cell to the inside.

• The primary parietal cell divides to form wall of the anther.

• The primary sporogenous cells divides repeatedly to form sporogenous tissue.

• Sporogenous tissues are composed of sporogenous cells or microsporoctyes.