Anaerobic GNC, GPC, GNRs Flashcards Preview

Liz's Microbiology Module 2 > Anaerobic GNC, GPC, GNRs > Flashcards

Flashcards in Anaerobic GNC, GPC, GNRs Deck (57):
1

Most commonly isolated and only GNC implicated as a pathogen

Veillonella

2

Most pathogenic of the anaerobic GPCs and most frequently isolated in pure culture

Finegoldia magna

3

FInegoldia magna
- Colonial morphology

Donuts (resembles RBCs)

4

Parvimonas micra
- Colonial morphology

Demonstrates slight beta hemolysis

5

Peptostreptococcus anaerobius
- Clonial morphology

Creamy, round colonies

6

Veillonella spp
- Clonial morphology

Circular, raised, smooth, and creamy

7

Bacteroids fragilis
- Clonial morphology

Fine ground glass (CIS)

8

Bacteroides ovatus
- Clonial morphology

?

9

Bacteroides thetaiotaomicron
- Clonial morphology

Mucoid, often w/ white striations

10

Campylobacter ureolyticus
- Clonial morphology

"Pits" the agar

11

Prevotella melaninogenica 'group'
- Clonial morphology

Yellow to tan to brown to black colonies → become darker w/ prolonged incubation

12

Fusbacterium mortiferum
- Clonial morphology

Colonies have whirl appearance

13

Fusobacterium necrophorum
- Clonial morphology

"Fried egg" colonies (raised yellow center)

14

Fusobacterium nucleatum
- Clonial morphology

- Mottled (course ground glass), pinkish to greenish
- Molar tooth forms

15

Peptostreptococcus anaerobius
- GLC

GLC = a...IC

16

Fusobacterium spp
- GLC

GLC = aB

17

Bacteroides fragilis 'group'
- GLC

GLC = ap (ib) iv

18

Porphyromonas spp
- Normal flora

Mouth

19

Veillonella spp
- Normal flora

Oral, respiratory, intestinal, genitourinary... (mucus membrane lined cavities)

20

Finegoldia magna
- Normal flora

Intestine

21

Parvimonas micra
- Normal flora

Mouth/upper respiratory tract

22

Staphylococcus saccharolyticus
- Normal flora

Skin

23

Fusobacteirum mortiferum
- Normal flora

Colon

24

Fusobacterium nucleatum
- Normal flora

Mouth

25

Fusobacteirum necrophorum
- Normal flora

Mouth

26

Bacteroides fragilis 'group'
- Normal flora

Colon

27

Prevotella oralis
- Normal flora

Mouth

28

Prevotella bivia and P. disiens
- Normal flora

Vaginal flora

29

Veillonella spp
- Nitrate reaction

Nitrate +

30

Peptococcus niger
- Pigment

Black to olive green → pigment fades w/ O2 exposure

31

Finegoldia magna
- Associated w/ what kind of infections?

Infections below diaphragm

32

Parvimonas micra
- Associated w/ what kind of infections?

Infections above diaphragm

33

Peptostreptococcus anaerobius
- SPS disk test

Susceptible ( ≥ 12 mm)

34

Staphylococcus saccharolyticus
- Found in what kind of cultures?

Blood and CSF cultures

35

Fusobacterium spp are associated w/ what kind of infections?

Infections of the mouth (human bites, lung abscesses, pleural cavity, brain abscess)

36

Fusobacterium nucleatum
- Indole reaction

Indole +

37

Fusobacterium necrophorum
- Associated w what kind of infection?
- Lipase reaction on EYA

- Common cause of brain abscesses
- Lipase +

38

Fusobacterium mortiferum
- Associated w/ what kind of infections?
- Resistant to ____

- Infections below the diaphragm
- Antibiotics

39

Bacteroides fragilis 'group'
- Stimulated by what?
- Bile disk test

- Stimulated by 20% bile
- Bile resistant

40

Bacteroides fragilis 'group' is a ____ producer and very resistant antimicrobials

Penicillinase

41

Fusobacterium spp
- Vancomycin disk reaction
- Kanamycin disk reaction
- Colistin disk reaction
- Growth on LKV agar?

- Vancomycin: resistant
- Kanamycin: susceptible
- Colistin: susceptible
- No growth on LKV

42

Bacteroides fragilis 'group'
- Vancomycin disk reaction
- Kanamycin disk reaction
- Colistin disk reaction
- Growth on LKV agar?

- Vancomycin: resistant
- Kanamycin: resistant
- Colistin: resistant
- Growth on LKV

43

Bacteroides fragilis 'group'
- Colonial morphology on BBE agar

Large gray-black colonies

44

Bacteroides ovatus
- Indole reaction

Indole +

45

Bacteroides thetaiotaomicron
- Indole reaction

Indole +

46

Bacteroides fragilis
- Indole reaction

Indole --

47

Bacteroides vulgatus
- Indole reaction

Indole --

48

Porphymonas spp
- Indole reaction

Indole +

49

Porphymonas spp
- Vancomycin disk reaction
- Kanamycin disk reaction
- Colistin disk reaction
- Growth on LKV agar?

- Vancomycin: susceptible
- Kanamycin: resistant
- Colistin: resistant
- No growth on LKV agar

50

Porphymonas spp
- Associated w/ what kind of infections?

Oral dental infections

51

This anaerobe is synergistic (usually found w/ other organisms), requires hemin and vitamin K in vivo, and produces beta lactamase?

Prevotella spp

52

Prevotella spp
- Vancomycin disk reaction
- Kanamycin disk reaction
- Colistin disk reaction
- Growth on LKV agar?

- Vancomyin: resistant
- Kanamycin: resistant
- Colistin: variable
- Growth on LKV agar

53

This anaerobe demonstrates brick red fluorescence and its pigment makes protoporphyrin (causing colonies ot become brown/black)

Prevotella melaninogenica

54

Peptostreptococcus anaerobius
- Normal flora

Nose, throat, intestine

55

Campylobacter ureolyticus
- Urease reaction

Urease +

56

Anaerobic GPCs

- Peptococcus niger
- Finegoldia magna (large)
- Parvimonas micra (small)
- Peptostreptococcus anaerobius (elongated)
- Staphylococcus saccharolyticus
- Streptococcus intermedius

57

Anaerobic GNRs

- Fusobacterium spp (spindle-shaped rod → "fusiform")
- Fusobacterium nucleatum (fusiform; thin and tapered)
- Fusobacterium necrophorum (short, long)
- Fusobacterium mortiferum (HUGE)
- Bacteroides fragilis
- Bacteriodes thetaiotaomicron
- Porphyromonas pp
- Prevotella spp
- Prevotella melaninogenic
- Campylobacter gracilis
- Campylobacter urealyticus