The Root Tip has Four
Developmental Zones
Root Cap
provides Physical Protection for the Root Apical Meristem.
It produces Lubricating
Mucopolysaccharides ("Slime") which ease soil penetration.
These are hydrophilic sugars that contain amino acids.
It also Perceives
Gravity.
SEM Image of a Root Tip |
 |
Meristematic
Zone
Produces the Primary Root Axis
Produces the Root Cap
Produces NO Lateral Appendages
Branch (Secondary) Roots arise in the
Pericycle and are identical to the Primary Roots.
Elongation
Zone
Cell Divisions Cease
Rapid Cell Elongation Occurs
Maturation
Zone
Cell Elongation ceases.
Cells acquire specific, mature
characteristics.
Root Hairs Develop
Radial pattern of tissues is
apparent.
Meristems-2 
