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Moneran/Prokaryotic Organism Subclassification All members of these groups are prokaryotic. The Archaee differ from the Eubacteria in that Archaea have introns, cell membrane lipids with ether binds rather than ester bonds between glycerol and fatty acids, lack peptidoglycan (cell wall polymer) which eubacteria have, and have histones in their DNA. Archaea share features of histones and introns with eukaryotes, and are believed to be more closely related to eukaryotes than the eubacteria are. Kingdom? Division? Classes? Alpha Proteobacteria (gram -) (from purple photosynthetic ancestor) Eubacteria Beta Bordatella (pertussis), Neisseria (meningitis), Salmonella, E. coli, Yersinia (plague), some Pseudomonas (mostly plant parasites) Gamma Enterobactor (, Haemophilus, Legionella, Pasteurella, Vibrio, some Pseudomonas Delta Bdellovibrio (parasite on other gram - bacteria) Epsilon Helicobacter (human ulcers) human sexually-transmitted intracellular parasites human sexually-transmitted syphilis blue-green bacteria, commonly mixed with algae in ponds Chlamydias Spirochetes Cyanobacteria Gram+ bacteria Archaea Species Agrobacterium, Brucella (disease in humans and cattle), corn mitochondrion, rickettsias (rocky mountain spotted fever) strep and staph bacteria that are ubiquitous on human skin and foods; peptidoglycan walls Korarchaeotes thermophiles live in hot springs environments live in extreme salt environments - salt brine areas and anaerobic areas of ungulate gut systems Euryarchaeotes halophiles Crenarchaeotes thermo and non-thermophiles hot springs and extremely cold environments Nanoarchaeotes extremely small archaeans only 400 nm in diameter, live on other archaens attached to their cell walls; have extremely small genomes