Proteobacteria

Most are G-, chemohererotrophs, photosynthetic ancestor.

Alpha: Agricultural importance.

Agrobacterium tumefaciens: Plant pathogen, causes crown gall, inserts plasmid into host cells.
Caulobacter: Divides into cell with anchor stalk and cell with flagellum.
Nitrobacter: Oxidizes nitrite into nitrate.
Rickettsia: Rocky Mountain Spotted Fever, obligate intracellular parasite, dog ticks cause Typhus.
Rickettsia typhi: Endemic to humans from rodents / fleas.
Rickettsia prowazekii: Epidemic from lice, high mortality.
Rhizobium: Fixes nitrogen into ammonia for plants.
Wolbachia: Symbiont, influences insects, parthogenesis, antibiotic can treat against nematodes.

Beta: Decay, nitrogen, sulphur.

Neisseria gonorrhoeae: Gonorrhea, diplococci, STI, The Clap, endemic, attach to epithelium mucosal cells, inflammation, pus, discharge, Pelvic Inflammatory Disease, can cause sterility / newborn blindness.
Nitrosomonas: Oxidizes ammonium into nitrite.
Thiobacillus: Oxidizes inorganic sulphur.

Gamma: Most diverse of Proteobacteria.

Escherichia coli: Gastroenteritis, G-, enterobacteria, Shiga enterotoxin.
Pseudomonas aeruginosa: Rod / cocci, aerobic, opportunistic nosocomial infection from hospitals, pneumonia, metabolizes many substrates, difficult to kill.
Salmonella enterica: Salmonella food infection, enterobacteria, divided into serovars based on cell surface antigens, serovars divided into biovars.
Thiomargarita: Coccus, visible to the naked eye.
Vibrio cholerae: Cholera, facultative anaerobe, fecal contaminated water / seafood, intestinal, exotoxin inhibits ion balance, lose gallons of water a day.
Yersinia pestis: Bubonic / Pneumonic plague, rod, subcutaneous hemorrhaging, in prairie dogs / squirrels, rats / fleas, affects lymph nodes.

Delta: Predatory, prey on other bacteria.

Bdellovibrio: Attach to G-, pass through outer membrane, replicate in periplasm.

Epsilon: Helical or vibrioid.

Nonproteobacteria

G-, not closely related to proteobacteria.

Cyanobacteria: Photosynthetic, oxygenic, blue-green algae, rare anatoxin exotoxin.

Firmicutes: Low G + C content.

Bacillus anthracis: Anthrax, Bacillales, facultative anaerobe.
Clostridium botulinum: Botulism, spores on canned goods, anaerobe, in soil / water / intestines, sporadic, neurotoxin targets nerves, flaccid paralysis in muscles, botox.
Clostridium tetani: Tetanus, rod, in soil.
Epulopiscium: In gut of Red Sea surgeon fish, visible to naked eye.
Lactobacillus: Rod, Lactobacillales, found in GI tract, lactic acid fermentation.
Listeria monocytogenes: Listeriosis, Bacillales, grows in refrigerators, contaminates deli meats + dairy products, infects GI tract, flu-like symptoms, meningitis, affects fetuses.
Mycoplasma pneumonia: Pneumonia, no cell wall, very small.
Staphylococcus aureus: Cocci, Bacillales, food / ear / skin infections, pneumonia, toxic shock syndrome, plasmids cause high antibiotic resistance.
Streptococcus: Strep, Lactobacillales, pneumonia, endotoxins, scarlet / rheumatic fever, necrotizing fasciitis.

Actinobacteria: High G + C content.

Corynebacterium diptheriae: Diptheria, respiratory issues, heart failure, paralysis.
Mycobacterium leprae: Leprosy, attacks nerves / skin / eyes / nose / muscles.
Mycobacterium tuberculosis: Tuberculosis, attacks lungs.
Streptomyces: Aerobic, asexual spores, in soil, produce antibiotics.

G-, helical rod, axial filaments, in contaminated water / soil / sewage / decaying matter / animal mouths.

Borrelia burgdorferi: Lyme disease, deer ticks, field mice, rash, heart / flue / arthritic symptoms.
Treponema pallidum: Syphilis, STD, can be latent, rash, damage to heart, joints, and bones.

G-, anaerobic, rod, in human intestines, most common on / in us.

G-, ovoid, obligate intracellular in eukaryotic cells.