A. bovis A. bowdenii A. canis A. cardiffensis A. catuli A. coleocanis A. dentalis A. denticolens A. europaeus A. funkei A. georgiae A. gerencseriae A. graevenitzii A. hongkongensis A. hordeovulneris A. howellii A. humiferus A. hyovaginalis A. israelii A. marimammalium A. meyeri A. naeslundii A. nasicola A. neuii A. odontolyticus A. oricola A. radicidentis A. radingae A. slackii A. streptomycini A. suimastitidis A. suis A. turicensis A. urogenitalis A. vaccimaxillae A. viscosus
Actinomyces is a genus of Gram-positivebacteria. Some species are anaerobic, while others are facultatively anaerobic . Actinomyces species do not form spores, and, while individual bacterium are rod-shaped, morphologically Actinomyces colonies form fungus-like branched networks of hyphae. Image File history File links Download high resolution version (2580x1930, 3883 KB)Agar plate culture of Actinomyces sp. ... Wikibooks Transwiki has more about this subject: Agar plate An agar plate streaked with microorganisms isolated from a deep-water sponge. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ... Classes Actinobacteria The Actinobacteria or Actinomycetes are a group of Gram-positive bacteria. ... Suborders Actinomycineae Corynebacterineae Frankineae Glycomycineae Micrococcineae Micromonosporineae Propionibacterineae Pseudonocardineae Streptomycineae Streptosporangineae Actinomycetales is an order of Actinobacteria. ... Actinomyces naeslundii are Gram positive rod shaped bacteria that occupy the oral cavity. ... Gram-positive bacteria are those that are stained dark blue or violet by gram staining, in contrast to gram-negative bacteria, which are not affected by the stain. ... Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ... Look up Anaerobic in Wiktionary, the free dictionary. ... A facultative anaerobic organism is an organism, usually a bacterium, that makes ATP by aerobic respiration if oxygen is present but is also capable of switching to fermentation under anaerobic conditions. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Divisions Chytridiomycota Deuteromycota Zygomycota Glomeromycota Ascomycota Basidiomycota Fungus growing on a tree in Borneo A fungus (plural fungi) is a eukaryotic organism that digests its food externally and absorbs the nutrient molecules into its cells. ... Hyphae as seen under a log A hypha (plural hyphae) is a long, branching filament found primarily in fungi, but also in fungus-like bacteria such as Actinomyces and Streptomyces. ...
Many Actinomyces spp. are oppotunistic pathogens of humans and other mammals, particularly in the oral cavity. In rare cases, these bacteria can cause actinomycosis, a disease characterized by the formation of abscesses in the mouth, lungs, or the gastrointestinal tract. The mouth, also known as the buccal cavity or the oral cavity, is the opening through which an animal or human takes in food. ... Abscess An abscess is a collection of pus collected in a cavity formed by the tissue on the basis of an infectious process (usually caused by bacteria or parasites) or other foreign materials (e. ... The gastrointestinal tract or digestive tract, also referred to as the GI tract or the alimentary canal or the gut, is the system of organs within multicellular animals which takes in food, digests it to extract energy and nutrients, and expels the remaining waste. ...
References
Holt JG (editor) (1994). Bergey's Manual of Determinative Bacteriology, 9th ed., Williams & Wilkins. ISBN 0-683-00603-7.
Madigan M; Martinko J (editors). (2005). Brock Biology of Microorganisms, 11th ed., Prentice Hall. ISBN 0131443291.
Studies of oral disease have shown that Actinomyces are chemotactic, activate lymphocyte blastogenesis, and stimulate the release of lysosomal enzymes from polymorphonuclear leukocytes and macrophages.
Actinomyces israelii, A gerencseriae, A georgiae, A naeslundii, A odontolyticus, A meyeri, possibly A pyogenes and P propionicus are normal inhabitants of the human mouth and are found in saliva, on the tongue, in gingival crevice debris, and frequently in tonsils in the absence of clinical disease.
Actinomyces bovis is not found in humans and, to date, the other species described from animals, with the exception of A pyogenes, have not been found in human specimens.
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