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Gram positive cocci
staphylococcus
micrococcus
peptococcus
peptostreptococcus
streptococcus
staphylococcus
gram + cocci
clusters/pairs
facultative
catalase +
halotolerant
alpha hemolysis
partial RBC breakdown
beta hemolysis
complete RBC breakdown
gamma hemolysis
no RBC breakdown
micrococcus
gram + cocci
clusters. tetrads
catalase +
obligate aerobe
non-pathogenic
peptococcus, peptostreptococcus
gram + cocci
obligate anaerobe
ferments peptone
streptococcus
gram + cocci
chains
aerotolerant
catalase -
ferment lactic acid
beta and alpha hemolytic groups
gram + rods
bacillus
clostridium
lactobacillus
listeria
mycobacterium
cornyebacterium
propionibacterium
eubacterium
actinomyces
streptomyces
mycoplasma
bacillus
endospore forming
aerobic or facultative
catalase +
forms capsule
found in soil
clostridium
endospore forming
strict anaerobe
catalase -
found in soil/intestines
lactobacillus
produce lactic acid
no spores
common in dairy
acidophile
listeria
very short rods (0.5 microns)
no spores
psychotolerant
foodborne illness
mycobacterium
gram + and acid fast
mycoplasma
only live inside other cells
very small, small genome
no cell wall
corynebacterium
aerobic
non motile
club or V shaped
propionibacterium
aerotolerant
gram +
ferment lactic acid (produce propionic acid)
eubacterium
obligate anaerobe
gram +
major normal flora of large intestine
opportunistic pathogen
actinomyces
gram +
no spores
branching filaments
streptomyces
gram +
branching filaments
form true spores
