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15 Cards in this Set

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what are the 5 phylum of firmicutes?
what are the 3 phylum of actinobacteria?
ssbcm
streptococcus
staphylococcus
bacillus
clostridium
mollictutes

SHM
streptomyces
heliobacter
mycobacterium
Streptococcus
cocci chains
complex nutritional req
release enzymes to break down org material
tolerant anerobes - grow by fermentaion of sugars even in the presence of oxygen
notable streptococcus pathogens
streptococus pyogenes- scarlet fever
streptococcus pneumoniae
staphylococcus
grape clusters
fac aerobes- no o2 they ferment to make lactic acid
skin and mucous membranes - s aerous non pathogenic and some can cause food poisoning
bacillus
aerobic rod shaped
form endospores
what are the 2 steps to endosposre growth?
1-veg growth - normal period of growth
2-sporulation- period of endospore formation
switch bt two occurs when nutrients deplete
most notable bacillus pathogens
bacillus anthraxis
bacillus cereus- food poisoning
bacillus thuringiensis-insect pathogen
clostriduium
obligate anerobes lack e chain
get energy thru substrate level phosphorylation
strickland rxn
endospores
most notable clostriduium pathogens
c.tetani
c.perfringens-gas gangrene
c.botulism
mollicutes
no cell wall
related to clostridium
complex nutritional req-path or parasitic
myco. pneumoniae - pneumonia
phylum actinobacteria
mycobacteriium
non motile
rod shaped with brancing mycelia
make mycolic acids that are linked to peptidoglycan
nost notable mycobacterium pathogens
m. tuberculosis
m, leprae
streptomyces
mycelial soil bacteria - produce antiobiotics
sporolate as differentiation process
what are the sporulation steps?
cells grow as branching substrate mycelium
nutrient depletion - substrate growth stops and aerial hyphae emerge and grow verticaly antibiotics produced(to kill competeitotrs)
aerial hyphae diff to chains of spores
heliobacter
only PS gram + bacteria known
photoheterotrophs - uses organic molecules
can't grow autotrophically
make endospores