Prevotella histicola: Difference between revisions

From MicrobeWiki, the student-edited microbiology resource
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1.  http://www.homd.org/modules.php?op=modload&name=HOMD&file=index&oraltaxonid=298&view=dynamic#editanchor
1.  http://www.homd.org/modules.php?op=modload&name=HOMD&file=index&oraltaxonid=298&view=dynamic#editanchor


2.  NEW TAXA - Bacteroidetes:
2.  Downes et al. Prevotella histicola sp. nov., isolated from the human oral cavity. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 2008; 58 (8): 1788 DOI: 10.1099/ijs.0.65656-0
Julia Downes, Samuel J. Hooper, Melanie J. Wilson, and William G. Wade
http://ijs.sgmjournals.org/content/58/8/1788
Prevotella histicola sp. nov., isolated from the human oral cavity
Int J Syst Evol Microbiol August 2008 58:1788-1791; doi:10.1099/ijs.0.65656-0
Link:  http://ijs.sgmjournals.org/gca?allch=citmgr&submit=Go&gca=ijs%3B58%2F8%2F1788


3.  Rudney, J. D., Chen, R. & Zhang, G.  (2005).  Steptococci dominate the diverse flora within buccal cells.  J Dent Res 84, 1165-1171.
3.  Rudney, J. D., Chen, R. & Zhang, G.  (2005).  Steptococci dominate the diverse flora within buccal cells.  J Dent Res 84, 1165-1171.

Revision as of 23:19, 10 March 2014

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Prevotella histicola

Classification

Domain: Bacteria

Phylum: Bacteroidetes

Class: Bacteroides

Order: Bacteroidales

Family: Prevotellaceae

Genus: Prevotella

Species: histicola

[1]

Introduction: Description and significance

Prevotella histicola are Gram-negative bacilli that are obligately anaerobic, vary in pigmentation and are non-motile. Prevotella histicola is found in the mucosal tissues of the human oral cavity and is considered a normal flora of the human oral microbiota.[2] It is generally commensal but are known to intrude the epithelial cells lining the cheeks. The human oral cavity is the threshold to the human body. Energy, food, enters the mouth, is broken down and is mixed with saliva prior to traveling through the remainder of the body. This aids in the possibility of spreading the bacteria from the mouth to other parts of the body. Prevotella is the largest genus, with approximately fifty species.[5] The Prevotella species are affiliated with many oral diseases and certain infections found in other areas of the human body.[2][3] The human oral cavity consist of many different habitats, including teeth, gingival sulcus, tongue, cheeks, hard and soft palates, and tonsils which are colonized by bacteria. The oral microbiome is comprised of over six hundred prevalent taxa at the species level, with distinct subsets predominating at different habitats.[5]

Genome Structure Phylogeny

At this time little is known about Prevotella histicola. The most recent research reveals a genome size of 0.7 wide by 0.8-3.0 um long (and occasionally up to 5 um long) while after three days incubation, colonies are 1.5-2.0mm in diameter, circular, entire, convex, cream-coloured and opaque.[2] Some strains produce black colonies in the presence of metronidazole and other strains form bull's-eye colonies with reddish-brown pigmentation in the centers.[2]


Metabolism (energy & carbon source)=

Cells are saccharolytic and are able to ferment fructose, glucose, lactose, maltose, mannose, raffinose and sucrose.[2] Major amounts of acetic acid ad succinct acid and trace to minors amounts of isovaleric acid and lactic acid are produced as end products of metabolism in peptone/yeast extract/glucose broth.[2]

Strain Information

http://www.straininfo.net/strains/842262;jsessionid=8573FE8E465D1173B6BC26CE22061091.straininfo2

References

1. http://www.homd.org/modules.php?op=modload&name=HOMD&file=index&oraltaxonid=298&view=dynamic#editanchor

2. Downes et al. Prevotella histicola sp. nov., isolated from the human oral cavity. INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 2008; 58 (8): 1788 DOI: 10.1099/ijs.0.65656-0 http://ijs.sgmjournals.org/content/58/8/1788

3. Rudney, J. D., Chen, R. & Zhang, G. (2005). Steptococci dominate the diverse flora within buccal cells. J Dent Res 84, 1165-1171.

4. http://www.straininfo.net/strains/842262;jsessionid=8573FE8E465D1173B6BC26CE22061091.straininfo2

5. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2944498/


Edited by (Shayron Minish Yeaw), student of Rachel Larsen at the University of Southern Maine