| Escherichia ruysiae |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacterales, Family Enterobacteriaceae, Genus Escherichia,
Escherichia ruysiae van der Putten et al. 2021.
Escherichia ruysiae van der Putten et al. 2021.
Gram-negative rods, 1.0 x 2.0 μm. Non-spore-forming. Non-motile.
Colonies are convex, grey-white and semitransparent on Columbia sheep blood agar
incubated overnight at 37 ºC. Grows at/in: 20-42 ºC and 0-6% NaCl. Facultatively
anaerobic.
incubated overnight at 37 ºC. Grows at/in: 20-42 ºC and 0-6% NaCl. Facultatively
anaerobic.
Isolated from human (faecal material of an international traveller returning from Asia, a diarrheal stool sample of an adult woman, a
stool sample from a healthy individual living in India, urine and other), wild animal (wild boars, rat, mouse, sea gull, urban crows,
capybara and other) poultry (chicken), livestock (swine), companion animal (dog) and environment (water, soil, river sediment).
stool sample from a healthy individual living in India, urine and other), wild animal (wild boars, rat, mouse, sea gull, urban crows,
capybara and other) poultry (chicken), livestock (swine), companion animal (dog) and environment (water, soil, river sediment).
Several virulence factor genes were identified, including those encoding colonization factors (fimH), fitness (iutA, kpsMII), toxins (pic,
sat, estB, astA) and effectors (aaiC).
May acquire clinically important Antibiotic Resistance Genes and transmit them to other clinically significant bacteria.
May have pathogenic and zoonotic potential.
sat, estB, astA) and effectors (aaiC).
May acquire clinically important Antibiotic Resistance Genes and transmit them to other clinically significant bacteria.
May have pathogenic and zoonotic potential.
- van der Putten BC, Matamoros S, Mende DR, Scholl ER, COMBAT consortium and Schultsz C, 2021. Escherichia ruysiae sp. nov.,
a novel Gram-stain-negative bacterium, isolated from a faecal sample of an international traveller. Int J Syst Evol Microbiol 71:
004609. - Campos-Madueno EI, Aldeia C, Sendi P, Endimiani A, 2023. Escherichia ruysiae may serve as a reservoir of antibiotic resistance
genes across multiple settings and regions. Microbiology Spectrum 11(4). Doi: 10.1128/spectrum.01753-23.
Positive results for alpha- and beta- galactosidase, beta- glucuronidase, ornithine decarboxylase, acid production from: L-arabinose,
glucose, maltose, D-mannitol, D-mannose, D-sorbitol, and trehalose.
Negative results for arginine dihydrolase, citrate utilization, alpha- and beta-glucosidase, H2S production, indole production,
N-acetyl-glucosaminidase, lipase, phosphatase, oxidase, urease, beta- xylosidase, acid production from: adonitol, L-arabitol,
cellobiose, 5-ketogluconate, sucrose*, tagatose* and D-xylose.
No utilization of histidine, malonate, malate and lactate.
Note: *contradictions in original paper vs supplementary material.
glucose, maltose, D-mannitol, D-mannose, D-sorbitol, and trehalose.
Negative results for arginine dihydrolase, citrate utilization, alpha- and beta-glucosidase, H2S production, indole production,
N-acetyl-glucosaminidase, lipase, phosphatase, oxidase, urease, beta- xylosidase, acid production from: adonitol, L-arabitol,
cellobiose, 5-ketogluconate, sucrose*, tagatose* and D-xylose.
No utilization of histidine, malonate, malate and lactate.
Note: *contradictions in original paper vs supplementary material.
(c) Costin Stoica
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