Pathogens

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  • Created by: AOconnor
  • Created on: 12-05-18 11:28
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  • Pathogens
    • Viral
      • HIV
        • Late stage (AIDS) occurs when body is too damaged to deal with other infections
          • Antiviral drugs delay progression
        • Spread via bodily fluids and sexual contact
      • TMV
        • Mosaic pattern of discolouration reduces chlorophyll content
          • Photosynthesis and growth affected
      • Reproduce rapidly in body cells, causing damage to cells
    • Bacterial
      • May damage cells directly or produce toxins that damage tissues
      • Salmonella
        • Bacteria ingested in food
          • Secretes toxins causing fever, ab. pain, cramps, vomiting and diarrhoea
      • Gonnorhoea
        • STD that causes thick yellow discharge from penis/vagina when urinating
          • Treated via penicillin
        • Prevented via barrier method
    • Fungal
      • Rose black spot
        • spreads via spores being carried by wind
        • Purple/black spots develop on leaf, eventually turning yellow and dropping early
          • Stunted growth due to lack of photosynthesis
          • Treated via fungicides and destroying affected leaves

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