BACTE LEC - P. maltophilia to Kingella Flashcards
maltose loving
P. maltophilia
yellow pigment on TSA
P. maltophilia
Grows at 42 C
P. maltophilia
Ammonia like odor
P. maltophilia
Agent of nosocomial infections, UTIs, wound infections
P. maltophilia
coccobacill in pairs
acinetobacter
Grows on MAC, BA, EMB
MAC: bluish to pink
EMB: cornflower blue color
acinetobacter
Agent of nosocomial infections
colonize moist areas of skin
found in oropharynx, vaginal tract, GI tract
acinetobacter
commonly isolated in endotracheal tubes, respiratory care quipment, dialysis equipment, venous catheters
acinetobacter
mistaken as neisseria
acinetobacter
how to differentiate nesseria and acinetobacter
acinetobacter - oxidase -
neisseria - oxidase +
motile, MAC, oxidase and catalse +
Alcaligenes
most important organism in Alcaligenes
A. faecalis
isolated on blood, csf, UT, pleural cavity
A. faecalis
flat dull colonies w/ irregular edge on BA
A. faecalis
Fails to reduce NO3 to NO2 or NO3 to NO2
A. faecalis
Grows in 6.5% NaCl
A. faecalis
A. piechaudii
Fruity odor of apples and pears
A. odorans
oxidize both glucose and xylose in of medium
A. xyclosoxidans
cannot grow in 6.5% NaCl
A. xyclosoxidans
reduce NO3 –> NO2
grows in 6.5% NaCl
A. piechaudii
reduce NO3 –> NO2
reduce NO3 –> N2
alkaline rxns in OF Medium
A. xyclosoxidans subspecies denitrificans
how does moraxella differ from neisseria?
MoraxellaWill not utilize carbohydrates Grow on BA Colonies on the outer zone of inhibition around penicillin (elongated forms)
nonmotile
Free living in soil & water
Moraxella
Gram negative diplococci
Moraxella
Normal flora – mucous membranes, skin, saliva BA – small, pinpoint, nonpigmented colonies Grows poorly or not all on MAC
Moraxella
how does moraxella differ from acinetobacter?
moraxella is both catalase and oxidase positive
nonsaccharolytic
Urethral specimens
Unable to utilize carbohydrates
Phenylalanine deaminase +
O. urethralis
nonsaccharolytic
Oxidase positive
Catalase positive
nonmotile
O. urethralis
UTIs
Peritrichous flagella
Rapid urease reaction
O. ureolytica
Resistant to penicillin & polymyxin B
Flavobacterium
Lavander-green
SBA
Flavobacterium
has the enzyme gelatinase
Flavobacterium
found in Soil, water &
Other moist areas
Plants
Flavobacterium
Dark yellow colonies
on BA
Indol +
F. indologenes
Nonsaccharolytic
Fruity odor
F. odoratum
most important species of Flavobacterium
F. meningosepticum
Meningitis in neonates
Pneumonia
(immunosuppresed adults)
F. meningosepticum
found in Ice machines Water fountains Sinks Incubators Water baths
F. meningosepticum
Indole + Urease negative Positive for esculin hydrolysis ONPG deoxyribonuclease Pinpoint Pale yellow pigment
F. meningosepticum
“corroding bacterium”
Eikenella corrodens
Facial & neck abscesses
Cellulitis
Septicemia
Eikenella corrodens
Isolated from blood cultures
after tooth extractions
Eikenella corrodens
Oxidase & catalase positive
Ferment glucose
Kingella
Require blood for growth
Indole positive
Pit agar surface
Kingella
species of Kingella
K. denitrificans
K. kingae
