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 (ăk-tĭn′ō-mī′sēz, ăk′tə-nō-)
n. pl. actinomyces
Any of various rod-shaped or filamentous, chiefly anaerobic bacteria of the genus Actinomyces, commonly found in the mammalian oral cavity and including pathogenic species, such as the causative agents of actinomycosis.

[New Latin Actīnomycēs, genus name : actino- + Greek mukēs, fungus.]


a genus of bacteria that causes disease in humans and improves soil ecology


(ækˌtɪn oʊˈmaɪ siz, ˌæk tə noʊ-)

n., pl. -ces.
any of several filamentous, anaerobic bacteria of the genus Actinomyces, certain species of which are pathogenic.
[< New Latin (1877) = Greek aktino- actino- + mýkēs fungus]
ac•tin`o•my•ce′tal, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.actinomyces - soil-inhabiting saprophytes and disease-producing plant and animal parasitesactinomyces - soil-inhabiting saprophytes and disease-producing plant and animal parasites
eubacteria, eubacterium, true bacteria - a large group of bacteria having rigid cell walls; motile types have flagella
genus Actinomyces - type genus of the family Actinomycetaceae
References in periodicals archive ?
Previous studies reported that the most common bacteria identified in mediastinal abscess were of oropharyngeal origin, such as Klebsiella pneumoniae, Actinomyces , hemolytic Streptococcu s, and Streptococcus intermedius , suggesting that the translocation of oral and nasopharyngeal bacteria to deep mediastinal tissues through the transbronchial or transtracheal passage of the needle were the most possible causes of mediastinitis or mediastinal abscess.
One should emphasize, however, that one of the four parts of the new Bethesda classification specifies such inflammatory lesions as: Trichomonas vaginalis, Candida, Actinomyces, Chlamydia, cellular changes consistent with HSV infection, and changes of bacterial flora.
In addition to the Methylobacterium finding, the team discovered that cancer patients' urine samples had increased levels of gram-positive bacteria, including Staphylococcus and Actinomyces.
Actinomyces israelii is classically cited as the most common causative organism of canaliculitis, (1) at the same time, isolation is difficult owing to the anaerobic nature of the pathogen.
Se ensayaron siete cepas Gram positivas: Streptococcus mutans (ATCC 35668), Staphylococcus aureus (ATcC 12398), Staphylococcus epidermidis (ATCC 35984), Staphylococcus epidermidis (donada por la FES Cuautitlan), Staphylococcus epidermidis (ATCC 12228, donada por la Clinica Universitaria de Salud Integral (CUSI), Iztacala), Actinomyces viscosus (WFCC 449), Enterococcus faecalis (CDBB-B1533) y siete cepas Gram negativas: Pseudomonas aeruginosa (CDBB-B-999), Pantoea agglomerans (CDBB-B-959), Enterobacter aerogenes (CDBBB-958), Proteus miriabilis (caso clinico, donada por el Hospital Angeles), Escherichia coli (caso clinico, donada por la CUSI-Iztacala), Vibrio cholerae (caso clinico) y Vibrio cholerae (CDC V12 (El Tor)).
A microbiological study of the oral cavity often different snake species belonging to the families Boidae, Colubridae, Elapidae and Viperidae, identified the bacteria Actinomyces sp.
Actinomycosis is a chronic suppurative and granulomatous infection most commonly caused by the gram-positive bacterium Actinomyces israelii and may be rarely caused by A.
In patients with IUCD, likelihood of Mycobacteria and Actinomyces is more than the normal population.
41) used polymerase chain reaction to reveal a significantly higher prevalence of Actinomyces and Aggregatibacter actinomycetemcomitans in black stain compared to the plaque of the control group.
The most common infectious causes of abscess formation (bacterial and viral) include Staphylococcus and Streptococcus species, Mycobacterium tuberculosis and atypical mycobacterial infections, Bartonella henselae, Toxoplasma gondii, Epstein-Barr virus and Actinomyces israelii.
These morphologic features were suggestive of Actinomyces spp (Figure 5).
In a study from the US Center for Disease Control and Prevention Actinomyces Reference Laboratory, a total of 92 Streptomyces spp.