Question

describe development of male gamatophyte and structure of microspore​

Answer 1

Answer:

The first gametophytic structure is the modification of microspore mother cell into the pollen grain. The pollen grain grows into the male gametophyte on germination which is initiated before pollination takes place. ... The inner layer called tapetum nourishes the developing microspores.

Answer 2

Answer:

Male Gametophyte: Pollen Grain

The first gametophytic structure is the modification of microspore mother cell into the pollen grain. The pollen grain grows into the male gametophyte on germination which is initiated before pollination takes place. ... The inner layer called tapetum nourishes the developing microspores.

Explanation:

The microspore has three different types of wall layers. The outer layer is called the perispore, the next is the exospore, and the inner layer is the endospore. The perispore is the thickest of the three layers while the exospore and endospore are relatively equal in width.