| Streptococcus orisuis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Streptococcus, Streptococcus
orisuis Takada and Hirasawa 2007.
Member of the "mutans group".
No reaction with Lancefield antisera.
orisuis Takada and Hirasawa 2007.
Member of the "mutans group".
No reaction with Lancefield antisera.
Gram-positive, 0.5-0.75 um, nonmotile, nonspore-forming, cocci, arranged in pairs or
short chains.
short chains.
Nonhemolytic on blood agar, white, small colonies; 0.75-1.0 mm in diameter.
Facultatively anaerobic (microaerophilic), optimal growth at 37.0 ºC. Grows on:
Trypticase soy agar with 5% defibrinated horse blood, Mitis salivarius agar.
Facultatively anaerobic (microaerophilic), optimal growth at 37.0 ºC. Grows on:
Trypticase soy agar with 5% defibrinated horse blood, Mitis salivarius agar.
Isolated from swine oral cavity. Resistant to bacitracin.
Oral bacteria, cariogenic activity is favorized by an adhesive, insoluble glucan produced from sucrose.
- Kazuko Takada and Masatomo Hirasawa: Streptococcus orisuis sp. nov., isolated from the pig oral cavity. Int J Syst Evol Microbiol
57 (2007), 1272-1275. - TAKADA Kazuko ; IGARASHI Mitsuhiko ; YAMAGUCHI Yasutaka ; HIRASAWA Masatomo: New serotype of mutans streptococci
isolated from pig oral cavity. Microbiology and immunology 2008, vol. 52, no2, pp. 64-68. - Kazuko Takada, Kazuhiko Hayashi, Yutaka Sato, and Masatomo Hirasawa. Streptococcus dentapri sp. nov., isolated from the wild
boar oral cavity. Int J Syst Evol Microbiol April 2010 60:820-823.
Most of biochemical characteristics were tested on API commercial kits.
Positive results for alanine phenylalanine, proline arylamidase, beta-glucosidase, alpha-glucosidase, alpha-galactosidase, acid
phosphatase, leucine arylamidase, valine arylamidase, cystine arylamidase, Voges-Proskauer reaction, acid production from
D-glucose, galactose, D-fructose, D-mannose, mannitol, sorbitol, N-acetylglucosamine, amygdalin, arbutin, aesculin, salicin,
cellobiose, maltose, lactose, melibiose, sucrose, trehalose, inulin, D-raffinose, beta-gentiobiose, methyl beta-D-glucopyranoside and
tagatose.
Negative results for arginine dihydrolase, alkaline phosphatase, catalase, beta-glucuronidase, beta-galactosidase, N-acetyl-beta-
glucosaminidase and hippurate hydrolysis.
Positive results for alanine phenylalanine, proline arylamidase, beta-glucosidase, alpha-glucosidase, alpha-galactosidase, acid
phosphatase, leucine arylamidase, valine arylamidase, cystine arylamidase, Voges-Proskauer reaction, acid production from
D-glucose, galactose, D-fructose, D-mannose, mannitol, sorbitol, N-acetylglucosamine, amygdalin, arbutin, aesculin, salicin,
cellobiose, maltose, lactose, melibiose, sucrose, trehalose, inulin, D-raffinose, beta-gentiobiose, methyl beta-D-glucopyranoside and
tagatose.
Negative results for arginine dihydrolase, alkaline phosphatase, catalase, beta-glucuronidase, beta-galactosidase, N-acetyl-beta-
glucosaminidase and hippurate hydrolysis.
(c) Costin Stoica
| Antibiogram |
| Encyclopedia |
| Culture media |
| Biochemical tests |
| Stainings |
| Images |
| Movies |
| Articles |
| Identification |
| Software |
| R E G N U M PROKARYOTAE |
| Back |