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Cell-cell communication - Coggle Diagram

- - - - Cell secretes slimy matrix of polysaccharide
      - Cells release inducer molecules which accumulate
      - Quorum of cells accumulate for sufficient qunatiites of inducer molecules
    - - Correct signal receptor
      - Signal transduction
      - Signal-producing bacteria nearby
    - - Expression of a virulent phenotype by pathogenic bacteria
    - - Recipient cells secrete high concentrations of oligopeptide pheromone cCF10
      - Donor cells upregulate aggregation substance Asc10
- - - - Bacteriophage mediates transfer process following attachment to bacterial surface
      - Two types
        
        Generalised
        
        Productive replication, degradation of host DNA
        
        Packaging of viral DNA
        
        Up to 50% of phage heads have host DNA
        
        Rare packaging of host DNA
        
        Specialised
        
        Lysogeny
        
        Induction
        
        Productive replication
        
        Lambda bacteriophage
        
        Packaging of hybrid DNA
        
        Rare excision error
    - - Naked DNA taken from external environment by bacteria that are competent for transformation
      - Transformation with DNA fragments
        
        Double-stranded DNA
    - - Plasmid mediates its own transfer between bacterial cells
      - Encodes machinery for transfer in its own genome