Micro-Unknown Research

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Unknown #2:

All possibilities: Staphylococcus saprophyticus, Staphylococcus epidermidis, Staphylococcus aureus, Micrococcus

luteus, Kocuria rosea, Streptococcus pyogenes, Streptococcus agalactiae, Enterococcus faecalis, Streptococcus

bovis, Streptococcus mitis, Streptococcus pneumoniae, Streptococcus salvarius, Lactococcus lactis, Bacillus

polymyxa, Bacillus subtilis, Corynebacterium xerosis, Mycobacterium smegmatis, Citrobacter freundii, Escherichia

coli, Enterobacter cloacae, Klebsiella pneumoniae, Proteus vulgaris, Salmonella typhimurium, Shigella flexneri,

Shigella dysenteriae, Serratia marcescens, Neisseria sicca, Moraxella catarrhalis, Alcaligenes faecalis, Pseudomonas

aeruginosa

Confirmation Tests:

1. Mannitol Salt Agar: Positive for growth and acid fermentation-ferments Mannitol

2. Coagulase Test: Positive-clotted

Catalase Test

H2O2

Negative Positive

Cell morphology from

Gram Stain

BacillusCoccus

PositiveNegative

Blood Agar Plate-

Hemolysis

Positive- β NegativeBeta: S. aureus

Gram StainGram Stains: Crystal Violet,

Gram’s Iodine, Alcohol, and

Safranin

Gram Positive: S. saprophyticus, S.

epidermidis, S. aureus, M. luteus, K. rosea, S.

pyogenes, S. agalactiae, E. faecalis, S. bovis, S.

mitis, S. pneumoniae, S. salvarius, L. lactis, B.

polymyxa, B. subtilis, C. xerosis, M. smegmatis

Cocci: S. saprophyticus, S.

epidermidis, S. aureus, M.

luteus, K. rosea, S. pyogenes,

S. agalactiae, E. faecalis, S.

bovis, S. mitis, S. pneumoniae,

S. salvarius, L. lactis

Catalase (+): S. saprophyticus,

S. epidermidis, S. aureus, M.

luteus, K. rosea