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Bacteriology > Enterobacteriaceace; Enterobacter > Flashcards

Enterobacteriaceace; Enterobacter Flashcards

1
Q

Habitat

A

Gut, environment

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2
Q

Morphology

A
  • Rod
  • Capsule, strong, large capsule production
  • Flagella
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3
Q

Culture

A

Mucoid colonies

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4
Q

Biochemical characteristics; Esherichia, Klebsiella and Enterobacter - > Lactose

A

Escherichia: +
Klebsiella: +
Enterobacter: +

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5
Q

Biochemical characteristics; Esherichia, Klebsiella and Enterobacter - > Mannitol

A

Escherichia: +
Klebsiella: +
Enterobacter: +

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6
Q

Biochemical characteristics; Esherichia, Klebsiella and Enterobacter - > Indol production

A

Escherichia: +
Klebsiella: -
Enterobacter: -

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7
Q

Biochemical characteristics; Esherichia, Klebsiella and Enterobacter - > Methyl red

A

Escherichia: +
Klebsiella: -
Enterobacter: -

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8
Q

Biochemical characteristics; Esherichia, Klebsiella and Enterobacter - > Voges-Proskauer

A

Escherichia: -
Klebsiella: +
Enterobacter: +

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9
Q

Biochemical characteristics; Esherichia, Klebsiella and Enterobacter - > Citrate utilization

A

Escherichia: -
Klebsiella: +
Enterobacter: +

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10
Q

Biochemical characteristics; Esherichia, Klebsiella and Enterobacter - > Urease

A

Escherichia: -
Klebsiella: +
Enterobacter: -

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11
Q

Biochemical characteristics; Esherichia, Klebsiella and Enterobacter - > H2S

A

Escherichia: -
Klebsiella: -
Enterobacter: -

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12
Q

Biochemical characteristics; Esherichia, Klebsiella and Enterobacter - > Phenylalanine deaminase

A

Escherichia: -
Klebsiella: -
Enterobacter: -

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13
Q

Differentiation of Klebsiella and Enterobacter?

A

Klebsiella has no flagella

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14
Q

Pathogenicity

A
  • Saprophytic
  • Rarely respiratory infections in humans
  • Can be present as secondary bacteria
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15
Q

Species

A
  • E. cloacae

- E. aerogenes

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16
Q

Negative and positive motility test

A

Neg: thin spiral in middle of sample tube
Pos: spread of bacteria in sample

17
Q

Indole production test, inoculated, neg and pos results

A

Uninoculated: Yellow, clear
Neg: yellow with clear upper layer
Pos: yellow with pink upper layer

18
Q

Methyl red test results

A

Neg: brown/yellow
Pos: red

19
Q

Voges-Proskauer test results

A

Neg: yellow/clear
Pos: yellow/red

20
Q

Urea test results

A

Uninodulated: peach
Neg: yellow
Pos: bright pink

21
Q

Citrate utilization test results

A

Neg: dark green
Pos: dark green/blue

Bacteriology (26 decks)

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