Systematic Microbiology 2
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- Parasitic (in invertebrate erythrocytes and vascular endothelial cells)
- energy parasite (slow metabolism; lives within host cytoplasm and uses atp)
- cell wall toxicity (lps and low endotoxic activitty
- causes cells to rupture
What does Rickettsia cause?
- murine or endemic typhus (R. typhi)
- Epidemic typhus (R. prowazekii)
- Rocky Mountain spottedd fever (R.ricketsii)
Parasitic : vertebrate erythrocytes and vascular enothelial cells
mutualistic with arthropod vectors
cell wall toxicity
What does Coxiella do?
reproduces inside the phagolysosome of phagocytes causing the cell to rupture
Coxiella brunetti causes Q fever
What are the different beta proteobacteria?
- Neisseria gonorrhoeae
- Neisseria meningiditis
- Bordetella pertussis
- spirillum volutans
- gram negativ
- coffee bean or kidney bean shaped
- Infects mucous membranes of mammals
What is Burkholderia (beta) important for?
- recycling organics
- cegrade >100 molecules
Bordetella pertussis (beta)
- causative agent of whooping cough
- bacteria is covered in a sheath
What is the sheath for in Bordetella pertussis?
attachments and nutrient collection
What are the various gamma-proteobacteria?
cheep flm mppssvyk
- genus Pseudomonas divided into five groups based on rRna
- Produce a fluorescent pigment
- important sewage treatment
- animal and plant pathogens
- human pathogens cause urinary tract infections, complicate burns and cause food spoilage (psuedomonas aeruginosa)
- unusual bioluminescen bacteria due to enzyme lukiferase
- free-living in water or live in fish
- Vibrio cholerae: serious human pathogen causes cholera
- Vibrio angullarum causes diseases in fish.
- enteric bacteria
- can produce large amounts of gas during sugar fermentation.
What are the various important human pathogens in enterobaceriales (enteric bacteria)?
pasture ella had a farm full of livestock and rabbits. she became their owner, stopped feeding them, they got small and then stopped moving (nonmotile).
What does Haemophilus influenza cause, same as Neisseria meningiditis?
meningitis because it infects mucous membranes.
(some members are predetory)
- use elemental sulfur and oxidized sulfur molecules as electron acceptors in anaerobic respiration
- great importance to sulfur cycling in nature
- anaerobic habitats rich in decaying materials:sediments, sewage
Bdellovibrio bacteriovorus (delta)
adell is predatory; has long sheathed flagellum (tail) very fast, when she is in the predatory phase and she can also have kids so he has a reproductive phase.
Myxococcalis (myxobacteria) (delta)
- Aerobic soil bacteia
- gliding motility (to reach nutrients in soil)
- life cycle involves fruiting bodies when no nutrients available (dormant at times in same situation)
- May be predatory
What are the epsilon proteobacteria?
- Helicobacter pylori
- campilobacter jejuni
Campilobacter jejuni (microaerophilic)
- causees gastroenteritis (common cause of food posoning) and septicemia in humans
- pathogen in livestock
Helicobacter pylori (epsilon proteobacteria) (microaerophilic)
- peptic ulcer disease
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