Diversity+notes+Part+2

Diversity+notes+Part+2 - Prokaryotic Diversity Bacteria...

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Prokaryotic Diversity Bacteria (Chapter 12) Phylum 1: ____________________ – all Gram ____________; metabolically diverse. Purple phototrophic bacteria Anoxygenic phototrophs Purple sulfur bacteria, Ex. Chromatium _________ as electron donor Form sulfur ___________ Found in __________________________ zones of lakes Purple nonsulfur bacteria, Ex. Rhodobacter Can use _______, but high levels are toxic Metabolically diverse therefore capable of living in a wide variety of places Most can fix _______ Nitrifying bacteria Chemolithotrophs that use reduced _____________ compounds Found where there are high levels of _______________________________ __________________ Ammonia-oxidizing (NH 3 to NO 2 ) ex. Nitrosococcus __________________ Nitrite-oxidizing (NO 2 to NO 3 ) ex. Nitrobacter Free-living aerobic nitrogen-fixing bacteria Reduce __________________ to ammonia and organic nitrogen compounds Nonsymbiotic Found in the __________ Some produce ____________ or ___________________ Azotobacter In addition to a capsule, Azotobacter forms _______________ which are __________________________ structures similar to endospores in that cysts resist ___________________ and _________________ but different from endospores in that they are not resistant to _____________.
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Methylotrophs Oxidize ___________________________ for energy and carbon source Methanotrophs A methylotroph that uses ______________ Methylomonas Aerobic Near anoxic muds, marshes, natural gas, intestinal tract Sterols in membranes Pseudomonads The characteristics below distinguish Pseudomonads from ___________________ which is often clinically necessary. Straight/slightly-curved rods __________ flagella Not ___________________ Oxidase ________________ Wide variety of organic compounds as carbon sources Soil/water Some animal pathogens such as Pseudomonas aeruginosa are responsible for _______________________. Some plant pathogens such as Xanthomonas campestris are responsible for ________________________, wilt and rot. Enteric Bacteria _______________ or motile by _______________ flagella Facultative aerobes, fermentative _______________ negative Animal intestinal tract, soil and water Some pathogenic Salmonella Escherichia coli O157:H7 - diarrhea Other examples you use in lab: Citrobacter , Serratia , Enterobacter
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Vibrio Facultative ____________, ____________________ _______ rods Polar or peritrichous flagellation _____________ positive Aquatic, some bioluminescent ( V. fischeri ) Pathogenic Vibrio cholerae – cholera Vibrio parahaemolyticus - gastroenteritis Campylobacter & Helicobacter ________________ __________ spirilla Pathogenic Campylobacter jejuni – enteritis Helicobacter pylori – peptic ulcers Neisseria Aerobic ____________ Some _______________ Neisseria gonorrhoeae - gonorrhea Neisseria meningitidis - meningitis Phylum 2: Gram-________________ bacteria with ____________ content Non-sporulating
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This note was uploaded on 03/30/2008 for the course BIOL 2051 taught by Professor Brininstool during the Fall '07 term at LSU.

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Diversity+notes+Part+2 - Prokaryotic Diversity Bacteria...

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