Primary
vs Secondary Growth-1
|
 |
Primary Gtrowth refers to all cells & tissues  produced directly by Derivatives of Apical
Meristems.The heirearchy of tissue
production starts with the Apical
Meristem.This produces Primary Meristems which have distinguishing For instance, the Protoderm is a unicellular layer on the surface of the apex and it only divides Anticlinally (perpendicular to the surface). Note that the Protoderm has a characteristic location and type of cell division. Cells produced by Primary Meristems differentiate to form Primary Tissues. The Protoderm forms Epidermis. There are three Primary Meristems &
Apical Meristem
Primary Meristems -> Primary Tissues Protoderm->Epidermis Ground
Meristem->Ground Tissues Procambium->Vascular Tissues
Primary Growth is responsible for Elongation in all parts of a Plant which include, Stems, Roots, Leaves & Reproductive Structures. |
