The following is the diagram of T.S. of anther. Identify the parts labeled A, B and C.

Options

A. A–Connective tissue, B–, Pollen grain C–Endothecium
B. A–Endothecium, B–Connective tissue, C–Pollen grain
C. A–Pollen grain, B–Connective tissue, C– Endothecium
D. A–Endothecium, B–Pollen grain, C–Connective tissue

Answer

A

Explanation

A – connective (A typical anther is bilobed. The two anther lobes are separated by a deep grove in front of are attached to each other by a band of vacuolated sterile tissue called connective.
B – endothecium – Cell of this layer secretes material that is essential for proper maturation of the pollen grains.
α − Cellulosic fibrous bands arising from inner tangential wall, which helps in dehiscence of anther.
C – Pollen grain C pollen sac on maturity becomes filled with pollen grain.