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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Betaproteobacteria, Order Burkholderiales, Family Burkholderiaceae, Genus
Lautropia, Lautropia mirabilis Gerner-Smidt et al. 1995, type species of the genus.
Lautropia, Lautropia mirabilis Gerner-Smidt et al. 1995, type species of the genus.
Gram-negative coccoid cells,1-2 to more than 5 μm in diameter (sphaeroblast-like cells). Motile by a tuft of 3-9 flagella. Non-spore-
forming. Capsulated and non-capsulated forms occurs.
forming. Capsulated and non-capsulated forms occurs.
Colonies are non-pigmented, 1 to 5 mm in diameter, usually adherent to the
substrate. At least three colony morphologies are seen: (1) flat, dry, circular colonies
predominating in young cultures, becoming (2) larger, wrinkled, crisp and crateriform
on prolonged incubation, and (3) smooth, glistering, raised, round, mucoid colonies.
Grows on most enriched media, especially on chocolate, Levinthal, TGY and Tween
80 agar; grows slower with no haemolysis on horse-blood agar. Growth temperature
range is 30-44 ºC. Facultative, but grows best under aerobic conditions with no
requirement for CO2. Produce polysaccharide on sucrose agar.
substrate. At least three colony morphologies are seen: (1) flat, dry, circular colonies
predominating in young cultures, becoming (2) larger, wrinkled, crisp and crateriform
on prolonged incubation, and (3) smooth, glistering, raised, round, mucoid colonies.
Grows on most enriched media, especially on chocolate, Levinthal, TGY and Tween
80 agar; grows slower with no haemolysis on horse-blood agar. Growth temperature
range is 30-44 ºC. Facultative, but grows best under aerobic conditions with no
requirement for CO2. Produce polysaccharide on sucrose agar.
Isolated from human dental plaque. Sensitive to penicillin G, ampicillin, piperacillin, cefuroxime, gentamicin and erythromycin.
Undetermined.
- Gerner-Smidt P., Keiser-Nielsen H., Dorsch M., Stackebrandt E., Ursing J., Blom J., Christensen A.C., Christensen J.J.,
Frederiksen W., Hoffmann S., Holten-Anderson W. And Ying Y.T.: Lautropia mirabilis gen. nov., sp. nov., a gram-negative motile
coccus with unusual morphology isolated from the human mouth. Microbiology, 1994, 140, 1787-1797. - 2018 Culture Collection University of Gothenburg, accessed on 11/11/2019. https://www.ccug.se
(c) Costin Stoica
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| R E G N U M PROKARYOTAE |
Some characters are based on API 20 NE and API ZYM results.
Positive results for acid phosphatase, catalase, esculin hydrolysis (most strains), esterase (C4), alpha-glucosidase, nitrate and nitrite
reduction, oxidase, urease, beta-xylosidase (most strains), acid production from glucose (type strain is negative in API 20 NE), fructose,
maltose, sucrose and mannitol.
Can assimilate glucose (weak / variable), arabinose (weak / variable), maltose, mannitol (weak and delayed), and
N-acetyl-glucosamine (weak / variable).
Negative results for alkaline phosphatase, arginine dihydrolase, alpha- and beta-galactosidase, beta-glucuronidase,
beta-glucosidase, gelatin hydrolysis, H2S production, indole production, hippurate hydrolysis, lysine decarboxylase, ornithine
decarboxylase, phenylalanine deaminase, starch hydrolysis, Tween 80 hydrolysis, Voges-Proskauer test, esterase lipase (C8), lipase
(C14), valine arylamidase, cystine arylamidase, trypsin, alpha-chymotrypsin and acid production from lactose, trehalose, raffinose,
inulin, salicin, adonitol, dulcitol, sorbitol, inositol, xylose, rhamnose or arabinose.
No assimilation of mannose, gluconate, caprate, adipate, malate, citrate and phenylacetate.
Positive results for acid phosphatase, catalase, esculin hydrolysis (most strains), esterase (C4), alpha-glucosidase, nitrate and nitrite
reduction, oxidase, urease, beta-xylosidase (most strains), acid production from glucose (type strain is negative in API 20 NE), fructose,
maltose, sucrose and mannitol.
Can assimilate glucose (weak / variable), arabinose (weak / variable), maltose, mannitol (weak and delayed), and
N-acetyl-glucosamine (weak / variable).
Negative results for alkaline phosphatase, arginine dihydrolase, alpha- and beta-galactosidase, beta-glucuronidase,
beta-glucosidase, gelatin hydrolysis, H2S production, indole production, hippurate hydrolysis, lysine decarboxylase, ornithine
decarboxylase, phenylalanine deaminase, starch hydrolysis, Tween 80 hydrolysis, Voges-Proskauer test, esterase lipase (C8), lipase
(C14), valine arylamidase, cystine arylamidase, trypsin, alpha-chymotrypsin and acid production from lactose, trehalose, raffinose,
inulin, salicin, adonitol, dulcitol, sorbitol, inositol, xylose, rhamnose or arabinose.
No assimilation of mannose, gluconate, caprate, adipate, malate, citrate and phenylacetate.
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