Root

1
Root Structure
2
Terminal bud
Blade
Leaf
Flower
Petiole
Axillary bud
Stem
SHOOTSYSTEM
Node
Internode
Taproot
Roothairs
ROOTSYSTEM
3

• Monocots and dicots differ in seed leaf number
  and in the structure of roots, stems, leaves, and
  flowers

SEED LEAVES
LEAF VEINS
STEMS
FLOWERS
ROOTS
MONOCOTS
Onecotyledon
Main veins usually parallel
Vascular bundles incomplex arrangement
Floral parts usuallyin multiples of three
Fibrousroot system
DICOTS
Main veins usually branched
Vascular bundles arranged in ring
Floral parts usually in multiples of four or five
Taprootusually present
Twocotyledons
4
Types Of Roots
5
Fibrous Root System
6
Taproot Systems
7
Vascularcylinder
Cortex
Epidermis
DIFFERENTIATION
Root Tip Anatomy
Root hair
ELONGATION
Cellulosefibers
CELLDIVISION
Apical meristemregion
Rootcap
8
Dicot Root Cross Section
Xylem
VASCULARTISSUESYSTEM
Phloem
Epidermis
GROUNDTISSUESYSTEM
Cortex
Endodermis
9
Root Hairs Increase Epidermal Surface Area for
Water Absorption
10
Adventitious Rootsdevelop from tissue other than
the root.
Tomato Plants
Mangrove KneesProp Roots
11
Aerial Roots ofStrangler Fig
Aerial Roots have grown downward from rain forest
canopy.
12
Climbing Roots a special type of adventitious
root
English Ivy