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Bacteriology > Actinomyces > Flashcards

Actinomyces Flashcards

1
Q

Similar to?

A

Mycobaterium

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2
Q

Family Actinomycetaceae has three genera?

A
  • Actinomyces
  • Trueperella
  • Actinobaculum
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3
Q

Habitat Actinobaculum

A

Mucous membrane

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4
Q

Morphology Actinobaculum

A
  • Similar to Mycobacterium

* Heterogenous morphology; curved rods, rods, filaments mixed

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5
Q

Staining Actinobaculum

A

Gram positive

Fastidious - need blood agar

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6
Q

Culture Actinobaculum

A
  • Fastidious - blood agar
  • Oxygen; anaerobic, microaerophilic (reduced 02 tension), facultative anaerobic
  • Haemolysis in some species, Beta hemolysis
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7
Q

Pathogenicity Actinobaculum

A

Facultative pathogens

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8
Q

Habitat; Actinomyces

A

Mucous membranes (oral cavity, alimentary tract, genitals)

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9
Q

Morphology; Actinomyces

A

Rods, filaments, sulphur granules (histiocytes surrounding bacteria)

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10
Q

Culture; Actinomyces

A

Anaerobi (aerotolereant)

Blood agar

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11
Q

Species; Actinomyces

A
  • A. bovis: cattle lumpy jaw
  • A. hyovaginalis: abortion, local purrulent lesions
  • A. suimastiditis: pig, mastitis
  • A. viscosus: causative agent of caries, human and dog
  • A. israeli: human actinomycosis
  • A. hordeovulneris: dog actinomycosis
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12
Q

Habitat; Actinobaculum (Corynebacterium, Eubacterium, Actinomyces) suis:

A

preputial mucosa of boars

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13
Q

Culture; Actinobaculum (Corynebacterium, Eubacterium, Actinomyces) suis:

A

Fastidious bacteria - blood agar

Anaerobic, in the beginning -> later it can tolerate O2

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14
Q

Pathogenicity; Actinobaculum (Corynebacterium, Eubacterium, Actinomyces) suis:

A

Purulent cystitis
Pyelonephritis
Reproduction problems

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15
Q

Habitat; Trueperella

A

Mucous membranes (oropharyngeal cavity)

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16
Q

Morphology; Trueperella

A

Curved rods

Coryneform (broad in one end)

17
Q

Culture; Trueperella

A

Slow growth
Blood agar, serum agar
Haemolysis
Protein demand

18
Q

Species and diseases; Trueperella

A

T. (Arcanobacterium, Corynebacterium) pyogenes:

  • Toxin (haemolysis)
  • Local suppuration: mastitis, metritis, arthritis, pneumonia, navel infection (newborns)

Bacteriology (26 decks)

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