Micro-Unknown Research
CarlaB
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