Killing of anaerobic pathogens by predatory bacteria. 2011

M Van Essche, and M Quirynen, and I Sliepen, and G Loozen, and N Boon, and J Van Eldere, and W Teughels
Department of Periodontology, Catholic University Leuven, Leuven, Belgium.

Recently, the predation of Bdellovibrio bacteriovorus on a periodontal pathogen has been described. The current study explores the potential antimicrobial activity of a range of predatory bacteria against key periodontal pathogens. A number of representatives from the Bdellovibrio, Bacteriovorax and Peredibacter lineages (called 'BALOs') were tested for their activity towards a group of key periodontal pathogens and an optimal multiplicity of infection was established. As the oral cavity contains a wide variety of bacteria that are not preyed upon, it was investigated if they can have an effect on the predation efficiency of BALOs. It was concluded that a number of important variables involved in bacterial predation are found to be compatible with the composition of the oral microbiota. This finding makes the case for continued study of the potential for BALOs to combat periodontal pathogens.

UI MeSH Term Description Entries
D009055 Mouth The oval-shaped oral cavity located at the apex of the digestive tract and consisting of two parts: the vestibule and the oral cavity proper. Oral Cavity,Cavitas Oris,Cavitas oris propria,Mouth Cavity Proper,Oral Cavity Proper,Vestibule Oris,Vestibule of the Mouth,Cavity, Oral
D010510 Periodontal Diseases Pathological processes involving the PERIODONTIUM including the gum (GINGIVA), the alveolar bone (ALVEOLAR PROCESS), the DENTAL CEMENTUM, and the PERIODONTAL LIGAMENT. Parodontosis,Pyorrhea Alveolaris,Disease, Periodontal,Diseases, Periodontal,Parodontoses,Periodontal Disease
D002206 Capnocytophaga A gram-negative gliding bacterium isolated from the oral cavity. It is a pathogen often causing PERIODONTITIS.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000190 Actinomyces A genus of gram-positive, rod-shaped bacteria whose organisms are nonmotile. Filaments that may be present in certain species are either straight or wavy and may have swollen or clubbed heads.
D000898 Antibiosis A natural association between organisms that is detrimental to at least one of them. This often refers to the production of chemicals by one microorganism that is harmful to another. Bacterial Interference,Microbial Antagonism,Interference, Bacterial,Antagonism, Microbial,Antagonisms, Microbial,Antibioses,Bacterial Interferences,Interferences, Bacterial,Microbial Antagonisms
D001501 Bdellovibrio A genus of bacteria capable of developing within other bacteria.
D013696 Temperature The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms. Temperatures
D016124 Eikenella corrodens Gram-negative bacteria isolated from infections of the respiratory and intestinal tracts and from the buccal cavity, intestinal tract, and urogenital tract. They are probably part of the normal flora of man and animals. Bacteroides corrodens,Ristella corrodens
D016966 Porphyromonas gingivalis A species of gram-negative, anaerobic, rod-shaped bacteria originally classified within the BACTEROIDES genus. This bacterium produces a cell-bound, oxygen-sensitive collagenase and is isolated from the human mouth. Bacteroides gingivalis

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