Isolation of a Novel Bacteriophage Specific for the Periodontal Pathogen Fusobacterium nucleatum
| Autor: | Leslie K. Daille, Pamela Machuca, Liliana Berrocal, Mauricio Bittner, Enrique D. Vines |
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| Rok vydání: | 2010 |
| Předmět: |
DNA
Bacterial viruses Molecular Sequence Data Genetics and Molecular Biology Siphoviridae Applied Microbiology and Biotechnology Genome Microbiology Periodontal pathogen Bacteriophage chemistry.chemical_compound Propionibacterium acnes Microscopy Electron Transmission Humans Amino Acid Sequence Periodontal Diseases Base Sequence Fusobacterium nucleatum Ecology biology Fusobacterium Infection biology.organism_classification Virology stomatognathic diseases chemistry Fusobacterium Infections DNA Food Science Biotechnology |
| Zdroj: | APPLIED AND ENVIRONMENTAL MICROBIOLOGY Artículos CONICYT CONICYT Chile instacron:CONICYT |
| ISSN: | 1098-5336 0099-2240 |
| DOI: | 10.1128/aem.01135-10 |
| Popis: | Fusobacterium nucleatum is a periodontal pathogen that has been directly associated with the development and progression of periodontal disease, a widespread pathology that affects the support tissues of the tooth. We isolated a new bacteriophage (FnpΦ02) that specifically infects this bacterium. Transmission electron microscopy showed that the virion is composed of an icosahedral head and a segmented tail. The size of the phage genome was estimated to be approximately 59 kbp of double-stranded DNA. The morphological features and the genetic characteristics suggest that FnpΦ02 is part of the Siphoviridae family. Using one-step growth and adsorption experiments, the latent period, burst size, and adsorption rate were estimated to be 15 h, 100 infectious units per cell, and 7.5 × 10 −10 ml min −1 , respectively. A small fragment of phage DNA was cloned and sequenced, showing 93% nucleotide identity with the phage PA6 of Propionibacterium acnes and amino acid identity with fragments of two proteins (Gp3 and Gp4) of this phage. To our knowledge, FnpΦ02 is the first phage described to infect Fusobacterium nucleatum and provides the base for future exploration of phages in the control of periodontal disease. |
| Databáze: | OpenAIRE |
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