Gram-Negative Microbe Identification (First Aid 2015) – Flashcards
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Neisseria meningitidis
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• gram negative • diplococci • maltose fermenter
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Neisseria gonorrhoeae
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• gram negative • diplococci • maltose non-fermenter
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Klebsiella
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• gram negative • rod • lactose fermenter • fast fermenter
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E. coli
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• gram negative • rod • lactose fermenter • fast fermenter
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Enterobacter
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• gram negative • rod • lactose fermenter • fast fermenter
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Citrobacter
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• gram negative • rod • lactose fermenter • slow fermenter
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Serratia
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• gram negative • rod • lactose fermenter • slow fermenter
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Pseudomonas
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• gram negative • rods • lactose non-fermenter • oxidase positive
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Salmonella
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• gram negative • rods • lactose non-fermenter • oxidase negative • produces H_2S
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Proteus
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• gram negative • rods • lactose non-fermenter • oxidase negative • produces H_2S
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Yersinia
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• gram negative • rods • lactose non-fermenter • oxidase negative • produces H_2S
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Shigella
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• gram negative • rods • lactose non-fermenter • oxidase negative • does not produce H_2S
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Campylobacter jejuni
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• gram negative • comma-shaped • oxidase positive • grows in 42°C
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Vibrio cholerae
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• gram negative • comma-shaped • oxidase positive • grows in alkaline media
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Helicobacter pylori
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• gram negative • comma-shaped • oxidase positive • produces urease
