| Dielma fastidiosa |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Erysipelotrichia, Order Erysipelothrichales, Family Erysipelotrichaceae, Genus Dielma, Dielma
fastidiosa Ramasamy et al. 2016, type species of the genus.
fastidiosa Ramasamy et al. 2016, type species of the genus.
Gram-negative rods, 0.60-2.2 µm. Motile. Non-spore-forming.
Colonies are 0.5-1 mm in diameter on blood-enriched Columbia agar. Growth occurs
between 25 and 45 ºC, with optimal growth observed at 30 ºC. Strictly anaerobic.
between 25 and 45 ºC, with optimal growth observed at 30 ºC. Strictly anaerobic.
Isolated from the stool of a healthy Senegalese patient. Susceptible to amoxicillin, imipenem, metronidazole and ciprofloxacin.
Resistant to trimethoprim/sulfamethoxazole, rifampin, doxycycline and gentamicin.
Resistant to trimethoprim/sulfamethoxazole, rifampin, doxycycline and gentamicin.
Undetermined.
- Ramasamy D, Lagier JC, Nguyen TT, Raoult D, Fournier PE. Non contiguous-finished genome sequence and description of
Dielma fastidiosa gen. nov., sp. nov., a new member of the Family Erysipelotrichaceae. Stand Genomic Sci 2013; 8:336-351.
Positive results for alpha-fucosidase, pyroglutamic acid arylamidase.
With the API 20NE system, a positive reaction is observed for aesculin.
Negative results for alkanine phosphatase, arginine arylamidase, arginine dihydrolase, alpha-arabinosidase, alanine arylamidase,
catalase, alpha- and beta-galactosidase, alpha- and beta-glucosidase, beta-glucuronidase, N-acetyl-beta-glucosaminidase,
glutamic acid decarboxylase, glutamyl glutamic acid arylamidase, glycine arylamidase, histidine arylamidase, indole production,
leucine arylamidase, leucyl glycine arylamidase, nitrate reduction, oxidase, phenylalanine aylamidase, proline arylamidase, serine
arylamidase, tyrosine arylamidase and urease.
Asaccharolytic. No mannose and raffinose fermentation.
With the API 20NE system, a positive reaction is observed for aesculin.
Negative results for alkanine phosphatase, arginine arylamidase, arginine dihydrolase, alpha-arabinosidase, alanine arylamidase,
catalase, alpha- and beta-galactosidase, alpha- and beta-glucosidase, beta-glucuronidase, N-acetyl-beta-glucosaminidase,
glutamic acid decarboxylase, glutamyl glutamic acid arylamidase, glycine arylamidase, histidine arylamidase, indole production,
leucine arylamidase, leucyl glycine arylamidase, nitrate reduction, oxidase, phenylalanine aylamidase, proline arylamidase, serine
arylamidase, tyrosine arylamidase and urease.
Asaccharolytic. No mannose and raffinose fermentation.
(c) Costin Stoica
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