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PSEUDOMONAS - Coggle Diagram

- - - - widespread occurrence ; soils, water, surfaces, human skin
    - - produce water-soluble fluorescent pigments
        
        pyocyanin - blue pigment
        
        pyoverdin – yellow pigment
        
        fluorescein, diffuse into the medium and fluoresce under uv
        
        example species
        -Pseudomonas aeruginosa - Pseudomonas putida
        -Pseudomonas syringae - Pseudomonas fluorescens
    - - versatile
        
        can use different sugars, fatty acids, dicarboxylic acids, alcohols, amino acids, amines and miscellaneous organic compounds
        
        Glucose catabolized via Entner-Doudoroff pathway
        
        6-phosphogluconate dehydrase
        
        2-keto-3-deoxyglucosephosphate aldolase
    - - Some species are human and plant pathogens
        
        Pseudomonas aeruginosa - human pathogens
        
        causes serious skin infections of burn victim
        
        grow in the lung of patients with cystic fibrosis
        
        cause urinary tract and lung infections of normal individual
        
        Pseudomonas marginalis - infecting stems and shoots but rarely leaves
        
        Pseudomonas syringae - plant pathogen form ice crystals that damage the plant tissue
  - - - non-sporing, rod-shaped, motile by 1 polar flagellum or non-motile
    - - most species digest starch, and produce acid in lactose
    - - formed yellow-colored pigment
    - - plant pathogen - stem wilt, leaf necrosis
  - - - Fermentors of sugars to alcohol
        
        has higher yield of ethanol production than many yeast
        
        tolerate < 10 % alcohol (yeast <15 %)
  - - - in polluted fresh water and in waste waters treatment plants
    - - masses of cell enclosed in a polysaccharide gelatinous matrix
    - - Bacillus
      - Found in organically enriched aqueous environment
      - Polarly flagellated
      - A mixotroph (inorganic for energy; organic for carbon)
      - Able to form flocs
        
        A floc is a collection of cells that grow in an aggregated form