GRAM NEGATIVE COCCI Flashcards
Neisseria characteristics
Pili G (-) diplococci except elongata obligate aerobe Fastidiuos Capnophilic Non motile
Superoxol
Catalase
Oxidase
results
Positive
transport system for Neisseria
JEMBEC system
Oxidase test aka
Taxo N
presumptive (screening) test for gram negative cocci
Oxidase test
Uses the reagent 1%
tetramethylparaphenylenediaminedihydrochloride
Oxidase test
positive oxidase test
purple
organisms with (+) Oxidase
Pseudomonas
Aeromonas
Moraxella
Neisseria
*Superoxol Catalase Test reagent
30% H2O2
Kidney (coffee) bean shaped in PMN
Neisseria gonorrhea
carb fermented by N. gonorrhea
Glucose
virulence of N. gonorrhea
pili
diseases known for N. gonorrhea
- Opthalmia neonatorum ‐ blindness
- Fitz‐Hugh Curtis
‐ PPNG (Penicillinase Producing Neisseria gonorrhea
(Capsular
Antigens of N. meningitidis
: A, B, C, Y, W135
virulence of of N. meningitidis
: capsule and endotoxin
can lead to DIC (Disseminated
Intravascular Coagulation)
Meningococcemia
– disease of the
adrenal glands associated with N. meningitidis
Waterhouse‐Freiderichsen Syndrome
Moraxella catarrhalis aka
Neisseria catarrhalis or
Branhamella catarrhalis)
Oxidase positive, reduce nitrate to nitrite, DNase
positive
Moraxella catarrhalis
best test to differentiate from other
Moraxella
DNase test
Tributyrin Hydrolysis (Butyrate Esterase Disc Test) result of M. catarrhalis
positive (+)
carb fermented by M. catarrhalis
Assacharolytic
3rd cause of otitis media
M. catarrhalis
GC agar
Thayer -Martin Agar
Modifier Thayer-Martin agar
new york city agar (mycoplasma & ureaplasma)
Martin Lewis agar
