plant defence systems

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  • plant defence systems
    • physical
      • thick waxy layers
      • cell walls stop pathogen entry
    • mechanical
      • thorns
      • curling up leaves to prevent being eaten
    • chemical
      • antibacterial toxins made by plant
    • identification of plant diseases
      • reference to gardening manual or website
      • laboratory test for pathogens
    • detection of plant diseases
      • stunted growth
      • spots on leaves
      • area of decay
      • malformed stem/leaves
      • discolouration
      • presence of pests


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