Term
CHLAMYDIAE Kingdom Bacteria
Phylum Chlamydiae
Class Chlamydiae |
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Definition
Chlamydia ('a cloak'), Chlamydiae obligate intracellular path. Many coexist in asymptomatic state within hosts, believed tthese hosts provide a natural reservoir grow by infecting eukaryotic host cells. small/smaller than many viruses. Inside cells take on intracellular replicative form; outside survive in extracellular infectious form. cannot be propagated in bacterial culture media,most successfully isolated inside host cell. lack peptidoglycan |
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Term
CHLAMYDIA Kingdom Bacteria
Phylum Chlamydiae
Order Chlamydiales
Family Chlamydiaceae
Genus Chlamydia |
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Definition
G- coccoid obligate intracellular B., route contact/aerosol, 3 species- C. trachomatis Humans-(trachomatis, blindness, n-gonococcal urethritis, lymphogranuloma stds), C. psittaci (psittacosis), C. pneumoniae (pneumonia); C. suis (swine), C. muridarum ( mice/hamsters). |
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Term
SPIROCHAETES Domain Bacteria
Phylum Spirochetes
Class Spirochetes |
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Definition
G- long helically coiled, free-living anaerobic, numerous exceptions, chemoheterotrophs, distinguished by 2 or more axial filaments (endoflagella), found in oral cavity; 3 families (Brachyspiraceae, Leptospiraceae, Spirochaetaceae),single order (Spirochaetales). Path Leptospira (leptospirosis), Borrelia burgdorferi, (Lyme disease), Borrelia recurrentis, (relapsing fever)Treponema pallidum (syphilis) |
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Term
TREPONEMA Kingdom Eubacteria
Phylum Spirochaetes
Class Spirochaetes
Order Spirochaetales
Family Treponemataceae
Genus Treponema
Species T. pallidum |
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Definition
4 known subspecies: T. pallidum pallidum (syphilis), non-venereal--> T. pallidum pertenue (yaws) T. pallidum carateum (pinta) T. pallidum endemicum (bejel);T. pallidum pallidum motile spirochaete -> venereal, via breaches in squamous or columnar epithelium, fetally by transplacental passage (congenital syphilis); considered metabolically crippled |
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