| Rhizobacter bergeniae |
Description is based mostly on API 20 NE and API ZYM (bioMerieux) results.
Positive results for acid and alkaline phosphatase, catalase, alpha-chymotrypsin, aesculin hydrolysis, casein hydrolysis,
CM-cellulose hydrolysis, esterase(C4), esterase lipase (C8), alpha-glucosidase, leucine arylamidase,
naphtholAS-BI-phosphohydrolase, oxidase, tyrosine hydrolysis (weak) and valine arylamidase.
Can assimilate L-leucine, D-glucose, L-arabinose, D-mannose, D-mannitol and maltose.
Negative results for arginine dihydrolase, cystine arylamidase, chitin hydrolysis, alpha-fucosidase, gelatin hydrolysis, H2S production,
indole production, lipase (C14), lysine decarboxylase, ornithine decarboxylase, alpha-mannosidase, nitrate reduction, starch
hydrolysis, N-acetyl-beta-glucosaminidase, trypsin, urease, acid production from glucose.
No assimilation of: acetic acid, fructose, lactic acid, propionic acid, sucrose, N-acetylglucosamine, potassium gluconate, capric acid,
adipic acid, malic acid, trisodium citrate or phenylacetic acid.
Positive results for acid and alkaline phosphatase, catalase, alpha-chymotrypsin, aesculin hydrolysis, casein hydrolysis,
CM-cellulose hydrolysis, esterase(C4), esterase lipase (C8), alpha-glucosidase, leucine arylamidase,
naphtholAS-BI-phosphohydrolase, oxidase, tyrosine hydrolysis (weak) and valine arylamidase.
Can assimilate L-leucine, D-glucose, L-arabinose, D-mannose, D-mannitol and maltose.
Negative results for arginine dihydrolase, cystine arylamidase, chitin hydrolysis, alpha-fucosidase, gelatin hydrolysis, H2S production,
indole production, lipase (C14), lysine decarboxylase, ornithine decarboxylase, alpha-mannosidase, nitrate reduction, starch
hydrolysis, N-acetyl-beta-glucosaminidase, trypsin, urease, acid production from glucose.
No assimilation of: acetic acid, fructose, lactic acid, propionic acid, sucrose, N-acetylglucosamine, potassium gluconate, capric acid,
adipic acid, malic acid, trisodium citrate or phenylacetic acid.
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Rhizobacter, Rhizobacter bergeniae Wei et al. 2015.
Species description is based on a single isolate.
Genus Rhizobacter, Rhizobacter bergeniae Wei et al. 2015.
Species description is based on a single isolate.
Gram-negative rods, 0.4-0.6 x 1.7-2.2 µm. Non-spore-forming. Motile by a single polar
flagellum.
flagellum.
Colonies grown on R2A agar for 2 days are yellowish, smooth, circular, convex and
1-2 mm in diameter with regular margins. Good growth on NA and R2A agar;
moderate growth on TSA; no growth on MacConkey agar or Marine Agar. Growth
occurs at 7-33 ºC (optimum, 25-28 ºC), at pH 5.0-10.0 (optimum, pH 6.0-7.0) and in
the presence of 0-0.5% (w/v) NaCl (optimum, 0%). Strictly aerobic.
1-2 mm in diameter with regular margins. Good growth on NA and R2A agar;
moderate growth on TSA; no growth on MacConkey agar or Marine Agar. Growth
occurs at 7-33 ºC (optimum, 25-28 ºC), at pH 5.0-10.0 (optimum, pH 6.0-7.0) and in
the presence of 0-0.5% (w/v) NaCl (optimum, 0%). Strictly aerobic.
Isolated from the root of Bergenia scopulosa collected from Taibai Mountain in Shaanxi Province, north-west China.
Undetermined.
- Wei L, Si M, Long M, Zhu L, Li C, Shen X, Wang Y, Zhao L, Zhang L. Rhizobacter bergeniae sp. nov., isolated from the root of
Bergenia scopulosa. Int J Syst Evol Microbiol 2015; 65:479-484. - Jin L, Ko SR, Ahn CY, Lee HG, Oh HM. Rhizobacter profundi sp. nov., isolated from freshwater sediment. Int J Syst Evol Microbiol
2016; 66:1926-1931.
(c) Costin Stoica
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