Plant Defences

• 3 types of defences

  • mechanical
  • physical
  • chemical
• mechanical defences

  • adapted to have thorns/hairs
  • droop or curl when touched
  • mimic other organisms
• physical defences - (barriers)

  • waxy cuticle
  • cell wall
  • layers of dead cells around stems
• chemical defences

  • antibacterial chemcials (witch hazel )
  • poison (foxglove)