| Actinomyces ruminicola |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Actynomycetales, Suborder Actinomycinae, Family Actinomycetaceae, Genus
Actinomyces, Actinomyces ruminicola An, Cai and Dong 2017.
Actinomyces, Actinomyces ruminicola An, Cai and Dong 2017.
Gram-positive straight rods, 0.5-1.0 x 2.5-4.0 µm. Non-motile. Non-spore-forming.
Colonies are white, slightly convex, 0.5-0.8 mm in diameter on PYRG (peptone-yeast
extract-glucose and 15% rumen fluid) agar after 48 h at 46 ºC; grow in PYRG broth.
Strictly anaerobic. Grows at: 20-55 ºC, pH 8.0-8.5.
extract-glucose and 15% rumen fluid) agar after 48 h at 46 ºC; grow in PYRG broth.
Strictly anaerobic. Grows at: 20-55 ºC, pH 8.0-8.5.
Isolated from cattle rumen. A feature of their natural niche is xylan degradation.
Undetermined.
- An D, Cai S and Dong X, 2006. Actinomyces ruminicola sp. nov., isolated from cattle rumen. Int J Syst Evol Microbiol 56, 2043-
2048.
Positive results for acid production from D-arabinose, cellobiose, cyclodextrin, erythritol,
fructose (weak reaction), galactose, glucose, lactose, maltose, melibiose, melezitose,
rhamnose, ribose, sorbitol, sucrose (saccharose), trehalose and D-xylose.
Negative results for catalase, hippurate hydrolysis,methyl red test, nitrate reduction, urease, Voges-Proskauer test, acid production
from adonitol, dulcitol, glycerol, inulin and starch (amidon).
Variable results for esculin hydrolysis, acid production from glycogen, inositol, mannose, mannitol, salicin and xylitol.
fructose (weak reaction), galactose, glucose, lactose, maltose, melibiose, melezitose,
rhamnose, ribose, sorbitol, sucrose (saccharose), trehalose and D-xylose.
Negative results for catalase, hippurate hydrolysis,methyl red test, nitrate reduction, urease, Voges-Proskauer test, acid production
from adonitol, dulcitol, glycerol, inulin and starch (amidon).
Variable results for esculin hydrolysis, acid production from glycogen, inositol, mannose, mannitol, salicin and xylitol.
(c) Costin Stoica
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