Bacteria Proteobacteria Purple phototrophic bacteria Bacteriochlorophyll Carotenoids.

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Presentation transcript:

Bacteria

Proteobacteria

Purple phototrophic bacteria Bacteriochlorophyll Carotenoids

Purple Sulfur Bacteria H2SH2SSoSo hydrogen sulfideElemental sulfur

Purple sulfur bacteria

Purple nonsulfur bacteria Photoheterotrophs

Nitrifying Bacteria

Nitrosococcus oceani Nitrobacter winogradskyi

Ammonia monooxygenase : ammonia to hydroxylamine Nitrite oxidase : nitrite to nitrate

Methanotrophs & Methylotrophs Methanotrophs=Obligate aerobes

Vibrio and Photobacterium Broza & Halper. Nature Jul 5;412(6842):40 Pathogen reservoirs. Chironomid egg masses and Vibrio cholerae Vibrio cholerae

Fireworm Hermodice carunculata coral-bleaching pathogen Vibrio shiloi

Bioluminescent bacteria FMNH 2 + O 2 + RCHOFMN + H 2 O + RCOOH+light Luciferase FMN –flavin mononucleotide Autoinduction, quorum sensing Vibrio fischeri Photobacterium phosphoreum

Rickettsias Obligate intracellular parasites

Wolbachia Parthenogenesis Killing of males Feminization

Wolbachia

Buchnera aphidicola Gammaproteobacteria

Gram-Positive bacteria

Low GC

Lactic acid bacteria Electron transport phosphorylation NO porphyrins and cytochromes Substrate level Phosphorylation only Aerotolerant anaerobes

High GC Streptomyces Actinomyces conidia

Cyanobacteria

Chlorophyll a Phycobilins N 2 fixation (some) Cyanobacteria

Chlorophyll b  -carotene Divinyl Chlorophyll a Prochlorococcus

Planctomyces No peptidoglycan Nucleated prokaryotes

Green Sulfur Bacteria

Chlorobium limicola Chlorobaculum

Green Sulfur Bacteria “Chlorochromatium aggregatum”

Hyperthermophiles

Thermotoga Thermodesulfobacterium Aquifex

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