Question

describe development of male gametophyta

Answer 1

Answer

• 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 tissue composed of sporogenous cells or microsporoctyes.

• The tapetum is a nutritive tissue which surrounds the sporogenous tissue, the developing pollen grains consumes of tapetum.

• Cells divides and give rise to microspore mother cell (MMC).

• The anther matures, each diploid MMC undergo meiosis to form four haploid microspore or pollen grains.