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Extremophiles
Thermophiles and Hyperthomophiles
Halophiles
Methanothermobacter thermoautotrophicus
Methanogens
Methanobacterium ruminatium
Phototrophic Bacteria
Blue-Green Bacteria (Cyanobacteria)
Green Sulfur Bacteria
Green Nonsulfur Bacteria
Gram Positive Bacteria
Low G+C Bacteria
Clostridium botulinumClostridium tetani
Clostridium perfringens
Characteristics
•Obligate anaerobic rods•Forms endospores
Diseases
•Tetanus•Botulism•Gangrene•Severe Diarrhea
Clostridium
Bacilli [Bacillus, Streptococcus,Staphylococcus]Bacillus anthracis Streptococcus pyogenes Staphylococcus aureus
Characteristics
•Facultative anaerobic rods•Endospore forming
Diseases
•Anthrax•Vomitting, nausea, cramping
Characteristics
•Cocci in chains
Diseases
•Strep throat•Scarlet fever•Impetigo•Pneumonia
Characteristics
•Cocci in clusters
Diseases
•Bacteremia•Food poisoning•Toxic shock syndrome
Gram Positive Bacteria
High G+C Bacteria
CorynebacteriumCorynebacterium diphtheriae
Characteristics
•Pleomorphic—can be rod shaped•Aerobes and facultative anaerobes•Produces metachromatic granules•Snapping division
Diseases
•Diptheria
Mycobacterium
Mycobacterium leprae Mycobacterium tuberculosisCharacteristics•waxy cell walls•grow very slowly
Diseases•Tuberculosis•Leprosy•Meningitis
Streptomyces
Characteristics
•Produces antibiotics•Ecologically important
Diseases
•Rare sinus infections
Gram Negative Bacteria
Alphaproteobacteria
Rhizobium
Nitrogen Fixers
Gram Negative Bacteria
Betaproteobacteria
Neisseria
Characteristics•Diplococci•Gram (-)•Inhabit mucous membranesof mammals
Diseases•Gonorrhea•Meningitis,•Pelvic Inflammatory Disease
Neisseria gonorrhea
Gram Negative Bacteria
Gammaproteobacteria
Legionella
Characteristics•Intracellular pathogens•Metabolizes amino acids
Diseases•Legionnaire’s Disease•Q fever
Legionella pneumophila.
Yersinia
Yersinia pestis
Characteristics•Facultative anaerobe•Coccobacillus•Antiphagocytic slime layer
Diseases•Bubonic Plague•Pneumonic Plague
Klebsiella
Characteristics•Gram (-)•Complex polysaccharide capsule•Aerobic
Diseases•Pneumonia
Klebsiella pneumoniae
Gram Negative Bacteria
Epsilonproteobacteria
Helicobacter
Characteristics•Gram (-)•Spirals•Aerobic
Diseases•Stomach ulcers•Gastritis
Gram Negative BacteriaSpirochetes
Treponema and Borrelia
Characteristics•Gram (-)•Axial filament (endoflagella)•Diverse habitats and metabolisms
Diseases•Syphilis•Lyme disease
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