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9 Cards in this Set

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  • Back
Escherichia coli
The 'classic', gram-negative, facultative anaerobe, mixed acid fermenter, it is a genetic workhorse, opportunistic pathogen, and indicator of fecal contamination.
Rhizobium meliloti
This gram-negative aerobic rod, is a principle symbiotic nitrogen fixer, that creates a micro-anaerobic environment for nitrogenase to work, and also metabolizes mannitol.
Rhodobacter sphaeroides
Dr. Steiner's favorite bacterium, it is a facultative photoheterotroph, belonging to the purple non-sulfur bacteria, which used to be called Rhodopseudomonas.
Serratia marcescens
This gram-negative bacterium, initially considered harmless, produces a 'brick-red' pigment, prodigiosin, and is a primary cause of opportunistic, nosocomial infections.
Caulobacter crescentus
This dimorphic, gram-negative, bacillus shaped baceterium lives in nutrient depleted environments. It displays asymmetric cell division that alternates between a 'stalk' cell and a flagellated 'swarmer' cell.
Bdellovibrio bacteriovorus
This bacterial 'predator' moves extremely fast ("Ramming speeds!") and parasitizes other bacteria in order to reproduce.
Clostridium botulinum
This gram-positive, endospore-forming rod, soil bacterium, causes a flaccid-type of paralysis, and is often spread via eating undercooked/prepared food.
Beggiatoa sp.
Winogradsky worked with/discovered these "colorless, sulfur bacteria" that are gram-negative, extremely long filaments, that grow in high sulfur-containing springs.
Pseudomonas aeruginosa
This ubiquitous, gram-negative rod, obligate anaerobe, with a single polar flagellum, is highly resistant to antibiotics, and produces a variety of pigments and toxins.