The Actinomyces of the Human Mouth

Bibby, Basil G.; Knighton, Holmes T.

doi:10.1093/infdis/69.2.148

Cited by 21 publications

(6 citation statements)

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“…Previous attempts to demonstrate pathogenicity of Actinomyces in various experimental animals have not been uniformly successful (Emmons, 1935;Bibby and Knighton, 1941;Slack, 1942;Hazen, Little and Resnick, 1952;Howell et af., 1959). Rosebury, Epps and Clark (1944) provided an extensive review of the early literature on experimental actinomycosis in laboratory animals and concluded that certain essential factors in the pathogenicity of the disease had not been defined.…”

Section: Discussionmentioning

confidence: 99%

Comparative Pathogenicity of Actinomyces Species in Mice

Behbehani¹,

Jordan²

1982

Journal of Medical Microbiology

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Section: Discussionmentioning

confidence: 99%

Comparative Pathogenicity of Actinomyces Species in Mice

Behbehani¹,

Jordan²

1982

Journal of Medical Microbiology

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“…The Nocardia form part of the ill-defined 'aerobic Actinomyces', and many workers, notably Naselund (1925), Lord & Trevett (1936), Cope (1938), Bibby & Knighton (1941), Crowley (1941), and Bartels (1943), claim that they differ from the Actinomyces proper only by their ability to tolerate oxygen.…”

Section: Introductionmentioning

confidence: 99%

Observations on the life cycle of the Nocardia

Morris

1951

Epidemiol. Infect.

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The life cycle of Nocardia starts-with the microcyst, which germinates by budding. The bud develops into a long multinucleate filament, which becomes divided into individual cells by the formation of transverse cell walls. Microcysts are formed in the same manner as in the Eubacteria. Multiplication of the cells takes place by simple fission, by complex vegetative reproduction, and by branching. They do not have a prolonged diploid phase like the Actinomyces.

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“…Various media have been used in the past for the isolation ofActinomyces from the mouth and from actinomycotic lesions (3,10,13,21,22). The media used in these studies were not selective in relation to the bulk of the competing flora; thus, the isolation and identification of Actinomyces, particularly from the complex oral flora, could be a laborious and time-consuming process.…”

mentioning

confidence: 99%

Development of a selective medium for detection and enumeration of Actinomyces viscosus and Actinomyces naeslundii in dental plaque

Zylber¹,

Jordan²

1982

J Clin Microbiol

181

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A selective medium (CFAT) was developed for the detection and enumeration of Actinomyces viscosus and Actinomyces naeslundii in dental plaque. Neutral acriflavin and potassium tellurite were used in combination with the known selective agents cadmium and fluoride to eliminate most of the competing plaque flora. Composition of CFAT per liter was as follows: Trypticase soy broth (BBL Microbiology Systems), 30 g; glucose, 5 g; agar, 15 g; cadmium sulfate, 13 mg; sodium fluoride, 85 mg; neutral acriflavin, 1.20 mg; potassium tellurite, 2.50 mg; basic fuchsin, 1.25 mg; defibrinated sheep blood, 50 ml. A. viscosus reference strains of human origin grew on CFAT without reduction in numbers under an atmosphere of 90% air-10% CO2. Animal strains of A. viscosus were inhibited at the level of cadmium in CFAT. Two of six A. naeslundii strains did not grow on CFAT. Improved recovery of A. viscosus and A. naeslundii from dental plaque occurred on CFAT, as compared with two other selective media which contained either cadmium sulfate or sodium fluoride, respectively, as selective agents. CFAT was more selective with regard to much of the extraneous gram-positive flora. Bacterionemia, Neisseria, yeasts, and streptococci were virtually eliminated.

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The Actinomyces of the Human Mouth

Cited by 21 publications

References 0 publications

Comparative Pathogenicity of Actinomyces Species in Mice

Comparative Pathogenicity of Actinomyces Species in Mice

Observations on the life cycle of the Nocardia

Development of a selective medium for detection and enumeration of Actinomyces viscosus and Actinomyces naeslundii in dental plaque

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