Shoot Apical Meristem
Apical Organization of Shoot Meristem
Ø Apical meristem is a patch of meristematic tissue present in the apex (tips) of shoot and roots in plants.
Ø Shoot apex is the growing tip of the stem.
Ø It is an undifferentiated region with meristematic cells.
Ø From this region the plant growth proceeds.
Ø The shoot apex also produces lateral organs such as leaves, branches and flowers.
Ø Below the apical meristem, different tissue zones are progressively differentiated.
Tissue zones in the shoot apex
Ø Three main tissue zones are present on the shoot apex of plants, they are:
$. Protoderm: Protoderm gives rise to the epidermis of the plant.
$. Ground meristem (fundamental meristem): The ground meristem gives rise endodermis, pericycle, cortex, medulla and pith.