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According to histogen theory, stem epidermis is derived from
Option: 1
Calyptrogen
Option: 2
Dermatogen
Option: 3
Protoderm
Option: 4
Periblem
Answers (1)
As we learned
Histogen theory -
According to Histogen (1870), The root and shoot apices are distinguished in to three meristematic regions or three layers of Histogen cells.(Histogen Theory).
1- Dermotogen - Outer most single layer of cells of forms uniseriate epidermis by anticlinal division
2- Periblem - Situated just below the dermatogen and cortex (hypodermis endodermis and cortex).
3- Plerome - Innermost region, stele formation takes place by division of these cells.
ex. pericycle vascular bundles, pift rays, medullary rays
- wherein
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