Question

Periblem gives rise to

• A. Epidermis
• B. Cortex
• C. Cortex and endodermis
• D. Endodermis

Answer 1

The correct option is C Cortex and endodermis

In the histogen theory Henstein divided the shoot apex into various zones. Each zone consists of a group of initial cells and called as histogen or a tissue builder.

The major histogens of the stem and roots are -(a) the dermatogen, a meristematic external layer, (b) the plerome, a central core and (c) the periblem, the region between the two.

The dermatogen gives rise to the epidermis, the prerome to the primary vascular bundles and the periblem develops into the cortex and endodermis.