Bilophila wadsworthia

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Classification

cellular organisms; Bacteria; Proteobacteria; delta/epsilon subdivisions; Deltaproteobacteria; Desulfovibrionales; Desulfovibrionaceae; Bilophila; Bilophila wadsworthia

Bilophila wadsworthia

[[File: Bilophila.jpg |thumb|right|Bilophila wadsworthia [1] ]]

Description and Significance

Bilophila wadsworthia is a gram negative anaerobic rod [2]. This bacteria carries out fermentation within the gut using taurine as the final electron acceptor [3]. It is urease-positive, bile resistant, catalase-positive [4]. It is largely found in patients that have appendicitis [4]. -- >

Structure, Metabolism, and Life Cycle

This organism does not have a capsule. This organism uses hydrogen as a growth substrate [3]. It has a 92% genomic DNA homology and is a bacteria. It also is a common, non-pathogenic organism growing in the colon of human and pigs [5].

Ecology and Pathogenesis

Bilophila wadsworthia is normal flora in human feces and can be found occasionally in the saliva and vagina [4]. [This organism has been found to cause intra-abdominal abscesses and has been found in human feces. It was also found in the peridontal pockets of dogs as well [2]. The specific virulence factor of this organism is something that has yet to be determined [2]. This is also found in humans that have appendicitis.

References

[1] Lounatmaa,K. SCIENCE PHOTO LIBRARY. "Bilophila wadsworthia" http://www.sciencephoto.com/media/11412/view

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[2] Baron,E. 1996. "Bilophila wadsworthia a Unique Gram-negative Anaerobic Rod.""Anaerobe".3:83–86. http://www.afrh.fr/web-content/documents/Basedocumentairemedicale/1997/1997%20B.Wadsworthia%20Bacteria%20HS%20Baron.pdf

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[3] Silva,S.;Venceslau,S.;Fernandes,C;Valente,F;Pereira,I. 2008. "Hydrogen as an energy source for the human pathogen Bilophila wadsworthia"."Antonie van Leeuwenhoek".93:381-390. http://link.springer.com/article/10.1007%2Fs10482-007-9215-x

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[4] Finegold S, Summanen P, Hunt Gerardo S, Baron E. 1992. "Clinical importance of Bilophila wadsworthia". "Eur J Clin Microbiol Infect Dis".11:1058-63. http://www.ncbi.nlm.nih.gov/pubmed/1295759

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[5] McOrist,S.; Keller,L.; and McOrist,A. 2003. "Search for Lawsonia intracellularis and Bilophila wadsworthia in malabsorption-diseased chickens". "Can J Vet Res".3: 232–234. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC227059/

Author

Page authored by Elise Widrig , student of [mailto:helv0010@umn.ed Mandy Brosnahan], Instructor at the University of Minnesota - Twin Cities, MICB 3301/3303: Biology of Microorganisms. <! -- Do not edit or remove this line -- >[[Category:Pages edited by students of Mandy Brosnahan at the University of Minnesota - Twin Cities]]