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Do these microorganisms cause disease in the oral cavity or elsewhere?
Do these microorganisms cause disease in the oral cavity or elsewhere?


A review of medical cases studies, from 2000 to February 2016, revealed that C. gingivalis was responsible for causing disease in four separate cases. The diseases were: bacteraemia, pneumonia, sepsis, lung abscess and acute exacerbation of COPD <sup>[[#References|[3]]]</sup>.
Although V. parvula is generally considered to be a commensal or non-pathogenic resident in the bacterial communities of the oropharynx and the gastrointestinal, genitourinary and respiratory tracks [7], it known to be associated with a number of human oral diseases [5]. In particular is has been shown to have a strong association with severe early childhood caries and intraradicular infections [6]. Rarely, however, V. parvula can cause serious and life-threatening infections, including osteomyeltitis, spondylodiscitis, discitis, meningitis and sinus infections [7,8].
 
C. gingivalis has demonstrated resistance to a number of the commonly prescribed antibiotics including: beta-lactams, flurorquinolones, macrolides, lincosamide and streptogramin. More specifically strains of C. gingivalis contain the blacsp-1, blacfxA2, blacfxA3, erm(F) and erm(C) genes <sup>[[#References|[3]]]</sup>, <sup>[[#References|[4]]]</sup>.


==Application to biotechnology==
==Application to biotechnology==

Revision as of 07:10, 19 September 2016

Aimee Davidson Bench E Date [1]

Classification

Higher order taxa

Kingdom – Domain – Phylum – Class – Order – Family – Genus

Kingdom - Bacteria - Firmicutes - Negativicutes - Selenomonadales - Veillonellaceae - Veillonella [3]

Species

Species name and type strain (consult LPSN http://www.bacterio.net/index.html for this information)

Veillonella parvula strain 10790

Description and significance

Give a general description of the species (e.g. where/when was it first discovered, where is it commonly found, has it been cultured, functional role, type of bacterium [Gram+/-], morphology, etc.) and explain why it is important to study this microorganism. Examples of citations [1], [2]

Genome structure

Select a strain for which genome information (e.g. size, plasmids, distinct genes, etc.) is available.

Cell structure and metabolism

Cell wall, biofilm formation, motility, metabolic functions.

Ecology

Aerobe/anaerobe, habitat (location in the oral cavity, potential other environments) and microbe/host interactions.

Pathology

Do these microorganisms cause disease in the oral cavity or elsewhere?

Although V. parvula is generally considered to be a commensal or non-pathogenic resident in the bacterial communities of the oropharynx and the gastrointestinal, genitourinary and respiratory tracks [7], it known to be associated with a number of human oral diseases [5]. In particular is has been shown to have a strong association with severe early childhood caries and intraradicular infections [6]. Rarely, however, V. parvula can cause serious and life-threatening infections, including osteomyeltitis, spondylodiscitis, discitis, meningitis and sinus infections [7,8].

Application to biotechnology

Bioengineering, biotechnologically relevant enzyme/compound production, drug targets,…

Current research

Summarise some of the most recent discoveries regarding this species.

References

References examples

1. Sahm, K., MacGregor, B.J., Jørgensen, B.B., and Stahl, D.A. (1999) Sulphate reduction and vertical distribution of sulphate-reducing bacteria quantified by rRNA slotblot hybridization in a coastal marine sediment. Environ Microbiol 1: 65-74.

2. Human Oral Microbiome

3. List of prokaryotic names with standing in nomenclature

5. Sabine Gronow, Sabine Welnitz, Alla Lapidus,2 Matt Nolan,2 Natalia Ivanova,2 Tijana Glavina Del Rio,2 Alex Copeland,2 Feng Chen,2 Hope Tice,2 Sam Pitluck,2 Jan-Fang Cheng,2 Elizabeth Saunders,2,3 Thomas Brettin,2,3 Cliff Han,2,3 John C. Detter,2,3 David Bruce,2,3 Lynne Goodwin,2,3 Miriam Land,2,4 Loren Hauser,2,4 Yun-Juan Chang,2,4 Cynthia D. Jeffries,2,4 Amrita Pati,2 Konstantinos Mavromatis,2 Natalia Mikhailova,2 Amy Chen,5 Krishna Palaniappan,5 Patrick Chain,2,3 Manfred Rohde,6 Markus Göker,1 Jim Bristow,2 Jonathan A. Eisen,2,7 Victor Markowitz,5 Philip Hugenholtz,2 Nikos C. Kyrpides,2, Hans-Peter Klenk,1 and Susan Lucas2 (2010) Complete genome sequence of Veillonella parvula type strain (Te3). Stand Genomic Sci 2(1): 65-74.

6. Izumi Mashima,1,2 Citra Fragrantia Theodorea,2,3 Boonyanit Thaweboon,4 Sroisiri Thaweboon,4 and Futoshi Nakazawa2 (2016) Identification of Veillonella Species in the Tongue Biofilm by Using a Novel One-Step Polymerase Chain Reaction Method. PLoS One. 11(6):e0157516

7. Chen YC, Ko PH, Yang CJ, Chen YC, Tsai CC, Hsieh MH (2014) Epidural abscess caused by Veillonella parvula: Case report and review of the literature. J Microbiol Immunol Infect. pii:S1684-1182(14)00098-X

8. Bhatti MA, Frank MO (2000) Veillonella parvula meningitis: case report and review of Veillonella infections. Clin Infect Dis. 31(3):839-40.


  1. MICR3004

This page is written by Aimee Davidson for the MICR3004 course, Semester 2, 2016