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Dong X, Zhao W, Ma S, Li X, Li G, Zhang S. Oral microbial profiles of extrinsic black tooth stain in primary dentition: A literature review. J Dent Sci 2024; 19:1369-1379. [PMID: 39035270 PMCID: PMC11259676 DOI: 10.1016/j.jds.2024.02.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 02/28/2024] [Indexed: 07/23/2024] Open
Abstract
The extrinsic black tooth stain (EBS) is commonly found in primary dentition. Patients cannot clean the EBS; this can only be done by professional scaling and debridement. It also has a tendency to reform, which significantly compromises children's aesthetics and even affects their quality of life. However, there is no conclusive evidence on the etiology of the EBS. The associations between the EBS and related oral microbial features is one of the research hot topics. No literature review summarized these research progresses in this area. Therefore, we reviewed the literature on the microbiology of the EBS since 1931 and reported as the following 5 aspects: molecular biotechnology, morphological structure and physiochemical characteristics, microbial etiology hypothesis and core microbial characteristics. The EBS is a special dental plaque mainly composed of Gram-positive bacilli and cocci with scattered calcium deposits that acquired salivary pellicle activates. Early studies showed that the Actinomyces was the main pathogenic bacteria. With advances in biological research techniques, the 'core microbiome' was proposed. The potential pathogenic genera were Actinomyces, Prevotella nigrescens, Pseudotropinibacterium, Leptotrichia, Neisseria and Rothia. However, the pathogenic species of the above genera were still unclear. Currently, it is believed that the EBS consists of iron compounds or black substances that oral bacterial metabolism produces or that the bacterial metabolites formed after chemical reactions in the micro-ecological environment.
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Affiliation(s)
- Xue Dong
- Department of Preventive Dentistry, Kunming Medical University, School and Hospital of Stomatology, Kunming, China
| | - Weijin Zhao
- Department of Preventive Dentistry, Kunming Medical University, School and Hospital of Stomatology, Kunming, China
| | - Sha Ma
- Department of Preventive Dentistry, Kunming Medical University, School and Hospital of Stomatology, Kunming, China
| | - Ximeng Li
- Department of Preventive Dentistry, Kunming Medical University, School and Hospital of Stomatology, Kunming, China
| | - Guiding Li
- Yunnan Key Laboratory of Stomatology, Kunming Medical University, Kunming, China
| | - Shinan Zhang
- Department of Preventive Dentistry, Kunming Medical University, School and Hospital of Stomatology, Kunming, China
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2
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Munson E, Carella A, Carroll KC. Valid and accepted novel bacterial taxa derived from human clinical specimens and taxonomic revisions published in 2022. J Clin Microbiol 2023; 61:e0083823. [PMID: 37889007 PMCID: PMC10662342 DOI: 10.1128/jcm.00838-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023] Open
Abstract
Although some nomenclature changes have caused consternation among clinical microbiologists, the discovery of novel taxa and improving classification of existing groups of organisms is exciting and adds to our understanding of microbial pathogenesis. In this mini-review, we present an in-depth summary of novel taxonomic designations and revisions to prokaryotic taxonomy that were published in 2022. Henceforth, these bacteriology taxonomic summaries will appear annually. Several of the novel Gram-positive organisms have been associated with disease, namely, the Corynebacterium kroppenstedtii-like organisms Corynebacterium parakroppenstedtii sp. nov. and Corynebacterium pseudokroppenstedtii sp. nov. A newly described Streptococcus species, Streptococcus toyakuensis sp. nov., is noteworthy for exhibiting multi-drug resistance. Among the novel Gram-negative pathogens, Vibrio paracholerae sp. nov. stands out as an organism associated with diarrhea and sepsis and has probably been co-circulating with pandemic Vibrio cholerae for decades. Many new anaerobic organisms have been described in this past year largely from genetic assessments of gastrointestinal microbiome collections. With respect to revised taxa, as discussed in previous reviews, the genus Bacillus continues to undergo further division into additional genera and reassignment of existing species into them. Reassignment of two subspecies of Fusobacterium nucleatum to species designations (Fusobacterium animalis sp. nov. and Fusobacterium vincentii sp. nov.) is also noteworthy. As was typical of previous reviews, literature updates for selected clinically relevant organisms discovered between 2017 and 2021 have been included.
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Affiliation(s)
- Erik Munson
- Department of Medical Laboratory Science, Marquette University, Milwaukee, Wisconsin, USA
| | - Arianna Carella
- Department of Medical Laboratory Science, Marquette University, Milwaukee, Wisconsin, USA
| | - Karen C. Carroll
- Division of Medical Microbiology, Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Kahraman-Ilıkkan Ö. Comparison of Propionibacterium genomes: CRISPR-Cas systems, phage/plasmid diversity, and insertion sequences. Arch Microbiol 2022; 204:434. [DOI: 10.1007/s00203-022-03062-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 06/03/2022] [Accepted: 06/08/2022] [Indexed: 11/29/2022]
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Complete Genome Sequence of Arachnia rubra Strain DSM 100122 T, a Cultured Member of the Human Oral Microbiome. Microbiol Resour Announc 2021; 10:e0095921. [PMID: 34854708 PMCID: PMC8638593 DOI: 10.1128/mra.00959-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We report the complete genome of Arachnia rubra strain DSM 100122T. The genome is 3.32 Mb, with a GC content of 64.2%. The genome contains 3,005 predicted genes, including 2,923 predicted protein-coding genes.
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Munson E, Carroll KC. Summary of Novel Bacterial Isolates Derived from Human Clinical Specimens and Nomenclature Revisions Published in 2018 and 2019. J Clin Microbiol 2021; 59:e01309-20. [PMID: 32967902 PMCID: PMC8111135 DOI: 10.1128/jcm.01309-20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Knowledge of novel prokaryotic taxon discovery and nomenclature revisions is of importance to clinical microbiology laboratory practice, infectious disease epidemiology, and studies of microbial pathogenesis. Relative to bacterial isolates derived from human clinical specimens, we present an in-depth summary of novel taxonomic designations and revisions to prokaryotic taxonomy that were published in 2018 and 2019. Included are several changes pertinent to former designations of or within Propionibacterium spp., Corynebacterium spp., Clostridium spp., Mycoplasma spp., Methylobacterium spp., and Enterobacteriaceae Future efforts to ascertain clinical relevance for many of these changes may be augmented by a document development committee that has been appointed by the Clinical and Laboratory Standards Institute.
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Affiliation(s)
- Erik Munson
- College of Health Sciences, Marquette University, Milwaukee, Wisconsin, USA
| | - Karen C Carroll
- Division of Medical Microbiology, Department of Pathology, the Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Deptula P, Loivamaa I, Smolander OP, Laine P, Roberts RJ, Piironen V, Paulin L, Savijoki K, Auvinen P, Varmanen P. Red-Brown Pigmentation of Acidipropionibacterium jensenii Is Tied to Haemolytic Activity and cyl-Like Gene Cluster. Microorganisms 2019; 7:microorganisms7110512. [PMID: 31671651 PMCID: PMC6920887 DOI: 10.3390/microorganisms7110512] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/21/2019] [Accepted: 10/29/2019] [Indexed: 01/28/2023] Open
Abstract
The novel Acidipropionibacterium genus encompasses species of industrial importance but also those associated with food spoilage. In particular, Acidipropionibacterium acidipropionici, Acidipropionibacterium thoenii, and Acidipropionibacterium jensenii play an important role in food fermentation, as biopreservatives, or as potential probiotics. Notably, A. jensenii and A. thoenii can cause brown spot defects in Swiss-type cheeses, which have been tied to the rhamnolipid pigment granadaene. In the pathogenic bacterium Streptococcus agalactiae, production of granadaene depends on the presence of a cyl gene cluster, an important virulence factor linked with haemolytic activity. Here, we show that the production of granadaene in pigmented Acidipropionibacterium, including A. jensenii, A. thoenii, and Acidipropionibacterium virtanenii, is tied to haemolytic activity and the presence of a cyl-like gene cluster. Furthermore, we propose a PCR-based test, which allows pinpointing acidipropionibacteria with the cyl-like gene cluster. Finally, we present the first two whole genome sequence analyses of the A. jensenii strains as well as testing phenotypic characteristics important for industrial applications. In conclusion, the present study sheds light on potential risks associated with the presence of pigmented Acidipropionibacterium strains in food fermentation. In addition, the results presented here provide ground for development of a quick and simple diagnostic test instrumental in avoiding potential negative effects of Acidipropionibacterium strains with haemolytic activity on food quality.
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Affiliation(s)
- Paulina Deptula
- Institute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland.
- Department of Food Sciences, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark.
| | - Iida Loivamaa
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland.
| | | | - Pia Laine
- Institute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland.
| | | | - Vieno Piironen
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland.
| | - Lars Paulin
- Institute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland.
| | - Kirsi Savijoki
- Division of Pharmaceutical Biosciences, University of Helsinki, 00014 Helsinki, Finland.
| | - Petri Auvinen
- Institute of Biotechnology, University of Helsinki, 00014 Helsinki, Finland.
| | - Pekka Varmanen
- Department of Food and Nutrition, University of Helsinki, 00014 Helsinki, Finland.
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Tindall BJ. Arachnia propionica (Buchanan and Pine 1962) Pine and Georg 1969 (Approved Lists 1980), Propionibacterium propionicum corrig. (Buchanan and Pine 1962) Charfreitag et al. 1988 and Pseudopropionibacterium propionicum (Buchanan and Pine 1962) Scholz and Kilian 2016 and the nomenclatural consequences of changes in the taxonomy of the genus Propionibacterium. Int J Syst Evol Microbiol 2019; 69:2612-2615. [DOI: 10.1099/ijsem.0.003442] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- B. J. Tindall
- Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Inhoffenstraße 7B 38124 Braunschweig, Germany
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Antibiotic resistance genes in the Actinobacteria phylum. Eur J Clin Microbiol Infect Dis 2019; 38:1599-1624. [PMID: 31250336 DOI: 10.1007/s10096-019-03580-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/01/2019] [Indexed: 02/07/2023]
Abstract
The Actinobacteria phylum is one of the oldest bacterial phyla that have a significant role in medicine and biotechnology. There are a lot of genera in this phylum that are causing various types of infections in humans, animals, and plants. As well as antimicrobial agents that are used in medicine for infections treatment or prevention of infections, they have been discovered of various genera in this phylum. To date, resistance to antibiotics is rising in different regions of the world and this is a global health threat. The main purpose of this review is the molecular evolution of antibiotic resistance in the Actinobacteria phylum.
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Oren A, Garrity GM. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2018; 68:2707-2709. [DOI: 10.1099/ijsem.0.002945] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Aharon Oren
- 1The Institute of Life Sciences, The Hebrew University of Jerusalem, The Edmond J. Safra Campus, 9190401 Jerusalem, Israel
| | - George M. Garrity
- 2Department of Microbiology and Molecular Genetics, Biomedical Physical Sciences, Michigan State University, East Lansing, MI 48824-4320, USA
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