Question

Development of microsporangia in anther is from a

• A. A single cell - eusporangiate
• B. A single cell - leptosporangiate
• C. Group of hypodermal cells - leptosporangiate
• D. Group of hypodermal cells - eusporangiate

Answer 1

The correct option is D Group of hypodermal cells - eusporangiate

A young anther has a homogeneous mass of hypodermal cells which is surrounded by a single layer of Epidermis. Below the epidermis, some cells contain a prominent nucleus and dense cytoplasm. These cells are called archesporial cells which divide periclinally to form an outer group of cells called parietal cells and an inner group of cells called sporogenous cells. The cells of the parietal group divide by periclinal and anticlinal divisions and form 2-5 layered anther wall. The sporogenous cells directly function as microspore mother cells or they may divide by mitotic divisions and then function as microspore mother cells. Thus, microsporangia are formed from a group of hypodermal cells. The microsporangia developed in this way are eusporangiate as sporangia are formed from several epidermal cells or archesporial cells and not from a single cell.

Hence, development of microsporangia in anther is from a group of hypodermal cells and is eusporangiate.

So, the correct answer is D.