Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Actinomycinae, Family
Actinomycetaceae, Genus Actinomyces, Actinomyces suimastitidis Hoyles, Falsen, Holmstrom, Persson, Sjoden and Collins, 2001.
Gram-positive straight to slightly curved rods. Non-motile. Non-acid-fast.
Grows on Columbia agar (Difco) with 5% horse blood at 37 ºC in air plus 5% CO2 .
Isolated from pig mastitis. Habitat is not known.
- Hoyles L, Falsen E, Holmstrom G, Persson A, Sjoden B and Collins M D, 2001. Actinomyces suimastitidis sp. nov., isolated from
pig mastitis. J Syst Evol Microbiol 51, 1323-1326.
Description is based on API Coryne and API rapid ID32 Strep results.
Positive results for esculin hydrolysis, alpha- and beta-galactosidase, alpha- and beta-
glucosidase, pyrazinamidase (weak reaction), Voges-Proskauer test (weak reaction), acid production from L-arabinose (weak
reaction), D-glucose, melibiose, D-raffinose, pullulan, ribose (weak reaction), sucrose and D-xylose.
Negative results for arginine dihydrolase, catalase, gelatin hydrolysis, beta-glucuronidase, hippurate hydrolysis, beta-mannosidase,
nitrate reduction, urease, acid production from D-arabitol, methyl-beta-D-glucopyranoside, lactose, mannitol, melezitose, sorbitol,
tagatose and trehalose.
Variable results for alkaline phosphatase, N-acetyl-beta-glucosaminidase, acid production from inositol and maltose.
(c) Costin Stoica