Microbiology and Immunology 3820A Lecture Notes - Lecture 2: Aspiration Pneumonia, Peritonitis, Cytotoxicity

• School: Western University
• Department: Microbiology and Immunology
• Course: Microbiology and Immunology 3820A
• Professor: Kelly Summers

Document Summary

Any organism which cannot grow on a non-nutrient deficient medium in an aerobic or. Co2 atmosphere but will grow in an oxygen free atmosphere. Strict anaerobes lack superoxide dismutase, which in aerobic organisms serves to protect against superoxide o2. Defined by being susceptible to oxygen poisoning. Some aerobes use oxygen by undergoing the same kind of biochemical respiration that (cid:449)e do a(cid:374)d so(cid:373)e of the(cid:373) do(cid:374)"t. But if theyre not poisoned by oxygen they are aerobes. But if they are poisoned by oxygen theyre anaerobes. Anaerobes are everywhere but how could that be cause oxygen is everywhere. Oxygen is in the atmosphere, but most thi(cid:374)gs, do(cid:374)"t ha(cid:448)e (cid:448)er(cid:455) (cid:373)u(cid:272)h o(cid:454)(cid:455)ge(cid:374) at all u(cid:374)less they have mechanisms for transporting. Anaerobes: widely distributed in soil, fresh and salt water, the gi tract, genitourinary orifices and on the skin, a small number of anaerobes are commonly associated with disease, mostly endogenous.