| Rugamonas rivuli |
Positive results for acid and alkaline phosphatase, catalase, casein hydrolysis, aesculin hydrolysis, gelatin hydrolysis,
alpha-glucosidase, leucine arylamidase, naphthol-ASBI-phosphohydrolase, nitrate reduction, oxidase, starch hydrolysis, trypsin,
Tweens (20, 40, 60 and 80) hydrolysis, urease and valine arylamidase.
Can utilize: L-aspartic acid, L-arabinose, starch, maltose monohydrate, lactose monohydrate, sucrose, sodium pyruvate and
L-glutamic acid.
Negative results for cystine arylamidase, alpha-chymotrypsin, esterase (C4), esterase lipase (C8), alpha-fucosidase, alpha- and
beta-galactosidase, beta-glucuronidase, beta-glucosidase, N-acetyl-betaglucosaminidase, H2S production, indole production, lipase
(C14), alpha-mannosidase, methyl red test, phenylalanine deaminase, Voges-Proskauer test.
No utilization of: D-glucose, D-fructose, trehalose dihydrate, glycerol, mannitol, D-sorbitol, L-valine, glycine, L-proline, L-serine,
sodium oxalate, sodium formate dihydrate, sodium acetate anhydrous or disodium fumarate.
alpha-glucosidase, leucine arylamidase, naphthol-ASBI-phosphohydrolase, nitrate reduction, oxidase, starch hydrolysis, trypsin,
Tweens (20, 40, 60 and 80) hydrolysis, urease and valine arylamidase.
Can utilize: L-aspartic acid, L-arabinose, starch, maltose monohydrate, lactose monohydrate, sucrose, sodium pyruvate and
L-glutamic acid.
Negative results for cystine arylamidase, alpha-chymotrypsin, esterase (C4), esterase lipase (C8), alpha-fucosidase, alpha- and
beta-galactosidase, beta-glucuronidase, beta-glucosidase, N-acetyl-betaglucosaminidase, H2S production, indole production, lipase
(C14), alpha-mannosidase, methyl red test, phenylalanine deaminase, Voges-Proskauer test.
No utilization of: D-glucose, D-fructose, trehalose dihydrate, glycerol, mannitol, D-sorbitol, L-valine, glycine, L-proline, L-serine,
sodium oxalate, sodium formate dihydrate, sodium acetate anhydrous or disodium fumarate.
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Rugamonas, Rugamonas rivuli Lu et al. 2020.
Genus Rugamonas, Rugamonas rivuli Lu et al. 2020.
Gram-negative rods, 0.6-0.7 x 1.5-2.0 µm. Motile by several flagella.
Colonies are light brown, circular with a wrinkled surface and have a tough, rubbery
texture. Growth occurs at 4-30 ºC (optimum, 24 ºC), pH 4.0–9.5 (optimum, pH 7.0-7.5)
and NaCl 0-1% w/v (optimum, 0-0.5% w/v). Aerobic.
texture. Growth occurs at 4-30 ºC (optimum, 24 ºC), pH 4.0–9.5 (optimum, pH 7.0-7.5)
and NaCl 0-1% w/v (optimum, 0-0.5% w/v). Aerobic.
Isolated from a subtropical stream in China.
Undetermined.
- Lu H, Deng T, Liu F, Wang Y, Xu M. Rugamonas aquatica sp. nov. and Rugamonas rivuli sp. nov., isolated from a subtropical
stream in PR China. Int J Syst Evol Microbiol 2020; 70:3328-3334.
(c) Costin Stoica
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