Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Microbiology > Gram positive II > Flashcards

Gram positive II Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Important Corynebacterium species

A

Corynebacterium bovis, Corynebacterium renale, Corynebacterium pseudotuberculosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Corynebacterium bovis causes

A

Subclinical mastitis in cattle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Usual habitat of Corynebacterium bovis

A

Teat cistern in cattle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Corynebacterium pseudotuberculosis hosts?

A

Sheep, goats, horses, cattle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Corynebacterium pseudotuberculosis biotypes?

A

Non-nitrate reducing biotype

Nitrate reducing biotype

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Non-nitrate reducing biotype of Corynebacterium pseudotuberculosis causes?

A

Caseous lymphadenitis in sheep and goats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Usual habitat of non-nitrate reducing biotype of Corynebacterium pseudotuberculosis?

A

Skin and mucous membranes of small ruminants, environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Nitrate reducing biotype of Corynebacterium pseudotuberculosis causes?

A

Ulcerative lymphangitis and abscesses in horses and cattle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Usual habitat of nitrate reducing biotype of Corynebacterium pseudotuberculosis?

A

Environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Corynebacterium renale causes?

A

Cystitis and pyelonephritis in cattle

Ulcerative balanoposthitis in sheep and goats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Gram appearance of Corynebacterium species?

A

positive pleomorphic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

General media requirements of Corynebacterium species?

A

Fastidious bacteria, require enrichened media

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Majority of Corynebacterium species live where?

A

As commensals on mucous membranes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What type of infections Corynebacterium species cause?

A

Pyogenic infections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Motility of corynebacterium species?

A

Non motile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Atmosphere requirements of Corynebacterium species?

A

Facultative anaerobes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Corynebacterium species catalase?

A

Catalase positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Corynebacterium species oxidase?

A

Oxidase negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Corynebacterium species are said to resemble?

A

Chinese characters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Pathogenesis and pathogenicity of Corynebacterium species?

A

Opportunistic pyogenic bacteria that live in mucous membranes EXCEPT for Corynebacterium bovis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Pathogenesis and pathogenicity of Corynebacterium bovis?

A

Lives in the teat cistern of 20% of cows and protects the mammary gland against invasion by more virulent pathogens (causes mild neutrophil response)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Corynebacterium pseudotuberculosis ilness?

A

Caseous lymphadenitis or pseudotuberculosis. Mostly external lesions with onion ring appearance on cut section. One should be careful with pus because it is highly pathogenic.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Goats with pseudotuberculosis show?

A

Superficial abscesses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Transmission of pseudotuberculosis is via?

A

Herd transmission via pus discharges, nasal oral discharges, coughing, vectors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

How contagious is pseudotuberculosis?

A

Extremely contagious

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Incubation period of pseudotuberculosis

A

3 months

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Corybacterium sampling?

A

Pus, exudate, samples of affected tissue, mid-stream urine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Culture of Corynebacterium?

A

Blood agar, O2, 24-48h, 37C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Rhodococcus equi appearance

A

Gram positve cocci or rods which are individually spread

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Rhodococcus equi grows on?

A

Non enrichened media

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Rhodococcus equi colony appearance?

A

Salmon-pink, mucoid, non-haemolytic colonies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Rhodococcus equi atmospheric requirements?

A

Aerobic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Rhodococcus equi motility?

A

non-motile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Rhodococcus equi lives?

A

As soil saprophyte also in digestive tract of horses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Rhodococcus equi is typically

A

A respiratory pathogen of foals (<6m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Rhodococcus equi spreads?

A

From feces/environment as aerosol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Rhodococcus equi virulence factor

A

Specific superficial antigen

38
Q

Rhodococcus equi virulence depends on?

A

Temperature

in high t 34-41C lot of antigen production

39
Q

Rhodococcus equi causes?

A

Suppurative bronchopneumonia and abscessation in foals when t is high
Ocassionaly in pigs, cats and in immunosuppressed pple

40
Q

Rhodococcus equi lesions?

A

Nodules in lungs

41
Q

Rhodococcus equi diagnosis?

A

Leukocytosis

Lung auscultation and thorax x-ray

42
Q

Rhodococcus equi specimens?

A

Tracheal aspirates and pus from lesions (which need to be sent refrigerated)

43
Q

How is Rhodococcus equi cultured?

A

Aerobically in 37 C 24-48h in

  • nutrient agar
  • blood agar
  • macConkey
44
Q

How do catalase test results look like?

A

foamy if positive

clear/non-foamy if negative

45
Q

How do oxidase test results look like?

A

blue ink on strip if positive

clear paper if negative

46
Q

How is Rhodococcus equi in the oxidation-fermentation and sugar fermentation tests?

A

Unreactive

47
Q

No fermentation in the oxidation-fermentation and sugar fermentation tests?

A

Remains purple

48
Q

Fermentation with production of acid but no gas in the oxidation-fermentation and sugar fermentation tests?

A

Yellow colour

49
Q

Fermentation with production of acid and gas in the oxidation-fermentation and sugar fermentation tests?

A

Yellow colour and bubble

50
Q

Rhodococcus equi appearance in the CAMP test?

A

Arrowhead

51
Q

Actinobacteria is taxinomically a?

A

class

52
Q

Actinobacteria appearance

A

gram +

often branching filaments

53
Q

Actinobacteria as pathogens?

A

opportunistic

54
Q

Actinobacteria cause

A

inflammatory responses

55
Q

Actinobacteria species differenciation?

A

MZN staining

56
Q

MZN + appearance

A

red

57
Q

MZN - appearance

A

blue

58
Q

Actinomyces atmospheric conditions

A

anaerobic or facultatively anaerobic

59
Q

Actinomyces morphology

A

produce filaments, however morphologically heterogenous

60
Q

Actinomyces spore formation

A

no

61
Q

Actinomyces motility

A

no

62
Q

actinomyces MZN?

A

negative

63
Q

Actinomyces live in?

A

mucous membranes

64
Q

Most pathogenic actinomyces?

A

Actinomyces bovis

65
Q

Actinomyces bovis causes

A

Lumpy jaw disease

66
Q

Actinomyces bovis habitat

A

oropharynx

67
Q

Arcanobacterium pyogenes infects which species?

A

cattle, swine and sheep

68
Q

Arcanobacterium pyogenes habitat

A

Nasopharyngeal mucosa

69
Q

Actinobaculum suis habitat?

A

preputial mucosa

70
Q

Virulent factors of Arcanobacterium, Actinobaculum, and Actinomyces?

A

Haemolytic, dermonecrotic exotoxin
Proteases
Neuraminidases

71
Q

What kind of reactions Arcanobacterium causes?

A

Purulent reactions

72
Q

What kind of reactions Actinomyces causes?

A

Pyogranulomatous reactions

73
Q

Arcanobacterium pyogenes causes which illnesses?

A 
Abscessation
mastitis
suppurative pneumonia
endometritis
pyometra
arthritis
umbilical infections
74
Q

Actinomyces bovis causes which illnesses?

A

Bovine actinomycosis = lumpy jaw

75
Q

Actinomyces viscosus causes which illnesses?

A

Canine actinomycosis:

  • cutaneous pyogranulomas
  • pyothorax and proliferative pyogranulomatous pleural lessions
  • disseminated lesions
76
Q

Actinobaculum suis causes

A

pyelonephritis

cystitis

77
Q

Which samples from Actinobaculum, Actinomyces and Arcanobacterium?

A

exudates, aspirates, tissue samples

78
Q

How to culture Actinobaculum, Actinomyces and Arcanobacterium?

A

Blood agar, anaerobiosi or aerobiosi 37C for 5 days

79
Q

How are Actinobaculum, Actinomyces and Arcanobacterium in catalase test?

A

Negative except Actinomyces viscosus

80
Q

What is special about Nocardia?

A

Spore formation

81
Q

Where do you cultivate Nocardia?

A

Sabouraud dextrose agar

82
Q

Nocardia MZN?

A

positive

83
Q

Nocardia lives in

A

Soil as a saprophyte

84
Q

Nocardia atmosphere requirements?

A

Aerobic

85
Q

How Nocardia infections occur?

A

Opportunistic bacteria
infections when immunosuppression
infection by teat canal, skin wounds, and inhalation

86
Q

Nocardia species infect

A

Dogs
Cattle
Pigs
sheep, goat and horses

87
Q

Nocardia species cause which conditions in dogs?

A

Canine nocardiosis:

  • cutaneous pyogranulomas
  • pyogranulomatous pleural lesions and pyothorax
  • disseminated lesions
88
Q

Nocardia species cause which conditions in cattle?

A

Chronic mastitis and abortions

89
Q

Nocardia species cause which conditions in pigs

A

Abortions

90
Q

Nocardia species cause which conditions in sheep, goats, and horses

A

Wound infections, mastitis, pneumonia, other pyogranulomatous conditions

91
Q

Nocardia farcinica causes what?

A

Bovine farcy

Microbiology (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions