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GRAM NEGATIVE (AEROBIC (PSEUDOMONADS (GENERAL CHARACTERISTIC (Straight or…

- - - - Straight or curved rods
      - ).5-1.0 um by 1.5-4.0 um
      - No Spores
      - Polar flagella (Single/Multiple
      - Chemoorganotrophs
      - Some chemolithotrophs (Hydrogen gas as electron donor)
      - Use low molecular weight due to inability to break polymers into monomers
      - Strict anaerobes
      - Mesophile (T: 20-45 degree Celsius)
    - - Xanthomonas
        
        non-sporing
        
        1 polar flagella
        
        motile
        
        rod-shaped
        
        Digest starch to produce lactic acid
        
        Formed yellow coloured pigments
        
        Plant pathogen
      - Zymomonas
        
        Sugar fermenters
        
        Higher yield of ethanol
        
        Tolerate < 10% alcohol
        
        different from pseudomonas (microphonic to aerobic)
      - Pseudomonas
        
        Most throughly studied
        
        Can be found in: Soils, water, surfaces, human skin
        
        Related based on rRNA analysis
        
        Some produce water-soluble fluorescent pigments
        
        Pyocyanin (Blue Pigments)
        
        Pyoverdin(Yellow Pigment)
        
        Fluorescein (Diffuse into medium and fluoresce under UV)
        
        Pseudomonas aeruginosa, Pseudomonas syringas, Pseudomonas putida, Pseudomonas fluorescens
        
        Use Etner-Doudroff Pathway
        
        6-phosphogluconate dehydrate
        
        2-keto-3-deoxyglucosephosphate aldolase
        
        Some are Pathogen
        
        Pseudomonas aeruginosa
        
        Pseudomonas marginalis
        
        Pseudomonas syringas (Plant Phatogen)
      - Zooglea
        
        cell enclosed by. polysaccharides gelatinous matrix
    - - Catalase Positive
      - Glucose metabolism: No gas Formation (Lain Dari enteric and Aeromonas)
      - Lack of photosynthetic pigments (Lain Dari nonsulfur purple bacteria)