| Rhizobacter (Piscinibacter) gummiphilus |
Positive results for casein hydrolysis, catalase, esculin hydrolysis, beta-galactosidase, H2S production, indole production, lipase
(Tween 80), nitrate reduction, oxidase, Voges-Proskauer test.
Can assimilate (API 20NE):, D-glucose, L-arabinose, D-mannose, maltose and gluconate.
Can utilize (Biolog GN2 tests): dextrin, glycogen, D-cellobiose, D-fructose, gentibiose, alpha-D-glucose, maltose, D-mannitol,
D-mannose, pyruvic acid methyl ester, succinic acid mono-methyl-ester, D-gluconic acid, beta-hydroxybutyric acid, DL-lactic
acid,quinic acid, sebacic acid and L-glutamic acid.
Negative results for gelatin hydrolysis, lecithinase, starch hydrolysis and urease.
No utilization of methanol, ethanol, N-acetylglucosamine, succinic acid, bromosuccinic acid, succinamic acid and alpha-ketoglutaric
acid.
(Tween 80), nitrate reduction, oxidase, Voges-Proskauer test.
Can assimilate (API 20NE):, D-glucose, L-arabinose, D-mannose, maltose and gluconate.
Can utilize (Biolog GN2 tests): dextrin, glycogen, D-cellobiose, D-fructose, gentibiose, alpha-D-glucose, maltose, D-mannitol,
D-mannose, pyruvic acid methyl ester, succinic acid mono-methyl-ester, D-gluconic acid, beta-hydroxybutyric acid, DL-lactic
acid,quinic acid, sebacic acid and L-glutamic acid.
Negative results for gelatin hydrolysis, lecithinase, starch hydrolysis and urease.
No utilization of methanol, ethanol, N-acetylglucosamine, succinic acid, bromosuccinic acid, succinamic acid and alpha-ketoglutaric
acid.
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae,
Genus Rhizobacter, Rhizobacter gummiphilus Imai et al. 2016.
Moved to genus Piscinibacter as Piscinibacter gummiphilus (Imai et al. 2016) Liu et al.
2023.
Genus Rhizobacter, Rhizobacter gummiphilus Imai et al. 2016.
Moved to genus Piscinibacter as Piscinibacter gummiphilus (Imai et al. 2016) Liu et al.
2023.
Gram-negative, straight rods, 0.6-0.7 x 1.2-1.5 µm. Motile by a single polar flagellum.
Colonies are yellowish and smooth on R2A agar. Growth occurs at 10-35 ºC and pH
6-9, and optimal growth is observed at 15-30 ºC and pH 7-8.
6-9, and optimal growth is observed at 15-30 ºC and pH 7-8.
Isolated from a soil sample of a botanical garden in Niigata, Japan.
Can degrade natural rubber.
Can degrade natural rubber.
Undetermined.
- Imai S, Yoshida R, Endo Y, Fukunaga Y, Yamazoe A, Kasai D, Masai E, Fukuda M. Rhizobacter gummiphilus sp. nov., a rubber-
degrading bacterium isolated from the soil of a botanical garden in Japan. J Gen Appl Microbiol 2013; 59:199-205. - Liu Y, Du J, Pei T, Du H, Feng GD, Zhu H. Genome-based taxonomic classification of the closest-to-Comamonadaceae group
supports a new family Sphaerotilaceae fam. nov. and taxonomic revisions. Syst Appl Microbiol 2022; 45:126352.
(c) Costin Stoica
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