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Multiple Single-Cell Genomes Provide Insight into Functions of Uncultured Deltaproteobacteria in the Human Oral Cavity

Journal Article · · PLoS ONE
 [1];  [2];  [3];  [3];  [3];  [2];  [4];  [4];  [4];  [5];
  1. Univ. of Tennessee, Knoxville, TN (United States). Genome Science and Technology Program; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division; DOE/OSTI
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division
  3. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States)
  4. The Ohio State Univ., Columbus, OH (United States). College of Dentistry
  5. Univ. of Tennessee, Knoxville, TN (United States). Genome Science and Technology Program; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Microbiology

Despite a long history of investigation, many bacteria associated with the human oral cavity have yet to be cultured. Studies that correlate the presence or abundance of uncultured species with oral health or disease highlight the importance of these community members. Thus, we sequenced several single-cell genomic amplicons from Desulfobulbus and Desulfovibrio (class Deltaproteobacteria) to better understand their function within the human oral community and their association with periodontitis, as well as other systemic diseases. Genomic data from oral Desulfobulbus and Desulfovibrio species were compared to other available deltaproteobacterial genomes, including from a subset of host-associated species. While both groups share a large number of genes with other environmental Deltaproteobacteria genomes, they encode a wide array of unique genes that appear to function in survival in a host environment. Many of these genes are similar to virulence and host adaptation factors of known human pathogens, suggesting that the oral Deltaproteobacteria have the potential to play a role in the etiology of periodontal disease.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC02-05CH11231; AC05-00OR22725
OSTI ID:
1627591
Journal Information:
PLoS ONE, Journal Name: PLoS ONE Journal Issue: 3 Vol. 8; ISSN 1932-6203
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English

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