Micro Week 2 Practical

SCN test results

Cat +

Coag -

Novobiocin S

Beta-lactamase -

Oxacillin R

S. saprophyticus test results

Cat +

Coag -

Novobiocin R

Beta-lactamase -

Oxacillin R

S. aureus test results

Cat +

Coag +

Novobiocin S

Beta-lactamase +

Oxacillin S

Strep pyogenes is

Group A strep

Strep agalactiae is

Group B strep

S. pyogenes test results

Cat -

Bacitracin S

CAMP -

PYR +

S. agalactiae test results

Cat -
Bacitracin R
CAMP +
PYR -

S. pneumoniae test results

Cat -

Optochin S

Deoxycholate +

Virdians group test results

Cat -

Optochin R

Deoxycholate -

Bile Esculin -

PYR -

6.5% NaCl -

Enterococcus spp. test results

Cat +
Bile Esculin +
PYR +
6.5% NaCl +

N. meningitidis test results

Cat +

Oxidase +

Glucose +

Maltose +

Lactose -

Sucrose -

N. gonorrhoeae test results

Cat +

Oxidase +

Glucose +

Maltose -

Lactose -

Sucrose -

Moraxella catarrhalis test results

Cat +

Oxidase +

Glucose -

Maltose -

Lactose -

Sucrose -

catarrhalis disk +

Staph morphology

GPC in cluster

Strep Morphology

GPC in chains

Neisseria morphology

Gram neg diplococci

Moraxella morphology

GNC

SCN plate morphology

gamma hemolysis

S. aureus plate morphology

Beta hemolysis - Butter

S. saprophyticus plate morphology

gamma - White

S. pyogenes plate morphology

beta hemolytic A

S. agalactiae plate morphology

beta hemolytic B

S. pneumoniae plate morphology

small, yellow/green, alpha hemolytic

Viridans group strep

tiny(pinpoint), yellow/green, alpha hemolytic

Enterococcus spp. plate morphology

Alpha, Beta, OR gamma

Catalase Positive Result

Bubbles

Coagulase Positive Result

Clot

Novobiocin Breaking Points

R<16

S>16

PYR Positive Test Result

Pink on disk

Deoxycholate positive result

Colony appearance changes/dissolves

Bile esculin positive result

black precipitate

CTA sugars tube

starts red → pos is Yellow

catarrhalis disk positive

blue/green on disk