Peptostreptococcus

Peptostreptococcus

Taxobox
color = lightgrey
name = "Peptostreptococcus"


image_width = 240px
image_caption = "Peptostreptococcus" spp. growing in characteristic chain formations.
regnum = Bacteria
phylum = Firmicutes
classis = Clostridia
ordo = Clostridiales
familia = Clostridiaceae
genus = "Peptostreptococcus"
genus_authority = Garrity "et al." 2001
subdivision_ranks = Species
subdivision = "P. anaerobius"
"P. asaccharolyticus"
"P. harei"
"P. hydrogenalis"
"P. indoliticus"
"P. ivorii"
"P. lacrimalis"
"P. lactolyticus"
"P. magnus"
"P. micros"
"P. octavius"
"P. prevotii"
"P. tetradius"
"P. vaginalis"
etc.

"Peptostreptococcus" is a genus of anaerobic, Gram-positive, non-spore forming bacteria. The cells are small, spherical, and can occur in short chains, in pairs or individually.cite book | author = Ryan KJ; Ray CG (editors) | title = Sherris Medical Microbiology | edition = 4th ed. | publisher = McGraw Hill | year = 2004 | id = ISBN 0-8385-8529-9 ] "Peptostreptococcus" are slow-growing bacteria with increasing resistance to antimicrobial drugs.cite journal | author = Higaki S, Kitagawa T, Kagoura M, Morohashi M, Yamagishi T | title = Characterization of Peptostreptococcus species in skin infections | journal = J Int Med Res | volume = 28 | issue = 3 | pages = 143–7 | year = 2000 | pmid = 10983864]

Pathogenesis

"Peptostreptococcus" species are commensal organisms in humans, living predominantly in the mouth, skin, gastrointestinal, and urinary tracts, and compose a portion of the bacterial gut flora. Under immunosuppressed or traumatic conditions these organisms can become pathogenic, as well as septicemic, harming their host. "Peptostreptococcus" can cause brain, liver, breast, and lung abscesses, as well as generalized necrotizing soft tissue infections.cite book | author = Mader JT, Calhoun J | title = Bone, Joint, and Necrotizing Soft Tissue Infections. "In:" Baron's Medical Microbiology "(Baron S "et al", eds.)| edition = 4th ed. | publisher = Univ of Texas Medical Branch | year = 1996 | id = [http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mmed.chapter.5381 (via NCBI Bookshelf)] ISBN 0-9631172-1-1 ]

References

External links

* [http://www.emedicine.com/med/topic1777.htm Peptostreptococcus infections] from eMedicine.


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