Question

What is Microsporangium ???


explain with neat explanation and diagram


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Answer 1

Answer:

Microsporangium is a structure in the plant’s male reproductive organ where the development of pollen takes place.

Explanation:

Microsporangia are sporangia that produce microspores that give rise to male gametophytes when they germinate.

Structure of Microsporangia

A microsporangium appears to have a circular outline when viewed transversely. It is surrounded by four layers:

Epidermis

Endothecium

Middle layers

Tapetum

The outer three layers protect the pollen and help in the splitting of anther to release the pollen. The tapetum nourishes the pollen grain. The cells of the tapetum are multinucleated and have dense cytoplasm. A young anther comprises of a group of compactly arranged homogenous cells called sporogenous tissue.

Answer 2

Answer:

Microsporangia are sporangia that produce microspores that give rise to male gametophytes when they germinate. Microsporangia occur in all vascular plants that have heterosporic life cycles, such as seed plants, spike mosses and the aquatic fern genus Azolla