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Bacteria. Proteobacteria. Purple phototrophic bacteria. Bacteriochlorophyll. Carotenoids. Purple Sulfur Bacteria. H 2 S. S o. hydrogen sulfide. Elemental sulfur. Purple sulfur bacteria. Purple nonsulfur bacteria. Photoheterotrophs. Nitrifying Bacteria. Nitrosococcus oceani.
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Purple phototrophic bacteria Bacteriochlorophyll Carotenoids
Purple Sulfur Bacteria H2S So hydrogen sulfide Elemental sulfur
Purple nonsulfur bacteria Photoheterotrophs
Nitrosococcus oceani Nitrobacter winogradskyi
Ammonia monooxygenase : ammonia to hydroxylamine Nitrite oxidase : nitrite to nitrate
Methanotrophs & Methylotrophs Methanotrophs=Obligate aerobes
Vibrio and Photobacterium Vibrio cholerae Broza & Halper. Nature. 2001 Jul 5;412(6842):40 Pathogen reservoirs. Chironomid egg masses and Vibrio cholerae
coral-bleaching pathogen Vibrio shiloi Fireworm Hermodice carunculata
Bioluminescent bacteria Vibrio fischeri Photobacterium phosphoreum Luciferase FMNH2 + O2 + RCHO FMN + H2O + RCOOH+light FMN –flavin mononucleotide Autoinduction, quorum sensing
Rickettsias Obligate intracellular parasites
Wolbachia Parthenogenesis Killing of males Feminization
Buchnera aphidicola Gammaproteobacteria
Gram-Positive bacteria Low GC
Lactic acid bacteria NO porphyrins and cytochromes Electron transport phosphorylation Substrate level Phosphorylation only Aerotolerant anaerobes
High GC Streptomyces Actinomyces conidia
Cyanobacteria Chlorophyll a Phycobilins N2 fixation (some)
Cyanobacteria Divinyl Chlorophyll a Chlorophyll b a-carotene Prochlorococcus
Planctomyces No peptidoglycan Nucleated prokaryotes
Green Sulfur Bacteria Chlorobium limicola Chlorobaculum
Green Sulfur Bacteria “Chlorochromatium aggregatum”
Hyperthermophiles Thermotoga Aquifex Thermodesulfobacterium