Gram Negative Bacteriadoctor2017.jumedicine.com/wp-content/uploads/sites/... · lactose fermenter o...
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Gram Negative Bacteria
Transcript of Gram Negative Bacteriadoctor2017.jumedicine.com/wp-content/uploads/sites/... · lactose fermenter o...
Gram Negative Bacteria
(E.coli)1. Escherichia coli
2. Klebsiella
• Large mucoid poly
saccharide
capsule .
3. Enterobacter
4. Citrobacter
o Gram negative rods , nonlactose fermenter
o Swarming motility ( flagellated )
o Prevent swarming by culturingit on CLED or Macconkey media
Proteu
s
identified by :
•Gram negative rods
•odor : grape-like smell.
•Oxidase positive.
•Produce different pigments colors:• Pyocyanine (blue-green)
• Pyoverdin (fluorescent yellow –greenish pigment).
• Pyorubrin (red).
• Pyomelanin (brown).
Pseudomonas aeruginosa
Pseudomonas aeruginosa on mueller hintion agar
