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how are prokaryotes classified?
bergey's manual, now divided into 2 separate manuals
gracillicutes (gram neg) 3 classes based on photosynthetic capabilities
firmicutes (gram pos) 2 classes based on cell shape
tenericutes (lack cell wall)
class 1, gram neg, non-photosynthetic (largest class of bacteria)
comma shaped bacteria
all contain flagella, very large cells, feed off hydrogen gas. found in anaerobic environments found in landfill
coiled morphology, shaped and moved by axial filaments
obligate intracellular parasites, transmitted to human thru animal bites
obligate intracellular parasites, can be transmitted thru personal contact
usually inhib mucous membranes of animals
move by polar flagella, found in soil, cultured from soap residue and antiseptics
outbreak of pneumonia (legionellosis) do not grow on conventional media, colonize in warm water supply
the enterics, inhabit intestinal tract
potentially pathogenic, pass thru low ph of stomach intestines.
caused bubonic plague or black death
contains pathogenic bacteria inhabiting mucous membranes
gram negative photosynthetic bacteria that do not produce o2
anoxyphotobacteria aka class 2
gram negative bacteria carrying out o2 photosynthesis, "fixing" nitrogen, blue green pigment
division 2, gram positive
gram positive coccus and bacillus
found on skin and nasal passageways
part of normal flora
anaerobes and can form endospores
form endospores, but not anaerobic
thallobacteria, gram pos bacteria that branch, filamentous bacteria
lack cell walls
division 3, tenericutes
division 4, extremists, cell walls lack peptidoglycan. contain many genes that are different from normal bacteria
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