| Actinomyces massiliensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Actynomycetales, Suborder Actinomycinae, Family Actinomycetaceae, Genus
Actinomyces, Actinomyces massiliensis Renvoise, Raoult and Roux 2009.
Species description is based on a single isolate.
Actinomyces, Actinomyces massiliensis Renvoise, Raoult and Roux 2009.
Species description is based on a single isolate.
Gram-positive straight rods, 0.5-1.7 / 0.35-0.74 µm.
Colonies are white, shiny and pinpoint on agar (bioMerieux) supplemented with 5%
sheep blood after 48 h at 37 ºC in air plus 5% CO2. Anaerobic or microaerophilic.
Non-haemolytic.
sheep blood after 48 h at 37 ºC in air plus 5% CO2. Anaerobic or microaerophilic.
Non-haemolytic.
Isolated from a human blood sample.
Susceptible to amoxicillin, cefotetan, doxyxycline, erythromycin, trimethoprim + sulfamethoxazole, rifampicin, imipenem, gentamicin,
penicillin and vancomycin.
Susceptible to amoxicillin, cefotetan, doxyxycline, erythromycin, trimethoprim + sulfamethoxazole, rifampicin, imipenem, gentamicin,
penicillin and vancomycin.
Undetermined.
- Renvoise A., Raoult D. and Roux V, 2010. Actinomyces massiliensis sp. nov., isolated from a patient blood culture. Int. J. Syst.
Evol. Microbiol. Vol. 59, 540-544.
Decription is based on API Rapid ID 32 A, API ZYM and API 50CHB results.
Positive results for beta-galactosidase, nitrate reduction, alpha-glucosidase, leucine arylamidase, valine arylamidase, acid production
from: fructose, galactose, D-glucose, lactose, D-lyxose, maltose, mannose (weak reaction), melezitose, ribose (weak reaction),
sucrose, trehalose, turanose and D-xylose.
Negative results for acid and alkaline phosphatase, arginine dihydrolase, catalase, cystine arylamidase, alpha-chemotrypsin, esterase
C4, ester lipase C8, lipase C14, alpha-fucosidase, alpha-galactosidase, N-acetyl-beta-glucosaminidase, beta-glucosidase,
beta-glucuronidase, indole production, nitrate reduction, alpha-mannosidase, oxidase, trypsin, urease, acid production from:
D-arabinose, D- and L-arabitol, D-adonitol, amygdalin, arbutin, cellobiose, dulcitol, erythritol, D- and L-fucose, gentibiose, glycogen,
glycerol,gluconate, 2- and 5-ketogluconate, inositol, inulin, mannitol, melibiose, methyl-beta-D-glucopyranoside, N-acetylglucosamine,
raffinose,rhamnose, salicin, sorbitol, L-sorbose, starch, tagatose, L-xylose and xylitol.
Positive results for beta-galactosidase, nitrate reduction, alpha-glucosidase, leucine arylamidase, valine arylamidase, acid production
from: fructose, galactose, D-glucose, lactose, D-lyxose, maltose, mannose (weak reaction), melezitose, ribose (weak reaction),
sucrose, trehalose, turanose and D-xylose.
Negative results for acid and alkaline phosphatase, arginine dihydrolase, catalase, cystine arylamidase, alpha-chemotrypsin, esterase
C4, ester lipase C8, lipase C14, alpha-fucosidase, alpha-galactosidase, N-acetyl-beta-glucosaminidase, beta-glucosidase,
beta-glucuronidase, indole production, nitrate reduction, alpha-mannosidase, oxidase, trypsin, urease, acid production from:
D-arabinose, D- and L-arabitol, D-adonitol, amygdalin, arbutin, cellobiose, dulcitol, erythritol, D- and L-fucose, gentibiose, glycogen,
glycerol,gluconate, 2- and 5-ketogluconate, inositol, inulin, mannitol, melibiose, methyl-beta-D-glucopyranoside, N-acetylglucosamine,
raffinose,rhamnose, salicin, sorbitol, L-sorbose, starch, tagatose, L-xylose and xylitol.
(c) Costin Stoica
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