| Phytobacter massiliensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacteriales, Family Enterobacteriaceae, Genus Phytobacter,
Phytobacter massiliensis (Lagier et al. 2014) Ma et al. 2021.
Old synonyms: Enterobacter massiliensis Lagier et al. 2014, Metakosakonia massiliensis (Lagier et al. 2014) Alnajar and Gupta 2017.
Phytobacter massiliensis (Lagier et al. 2014) Ma et al. 2021.
Old synonyms: Enterobacter massiliensis Lagier et al. 2014, Metakosakonia massiliensis (Lagier et al. 2014) Alnajar and Gupta 2017.
Gram-negative rods, 1.02 x 1.90 μm. Motile by polar flagella. Non-spore-forming.
Colonies are 2 mm in diameter on Brain-Heart Infusion agar and are convex, opaque,
light-cream colored and circular with regular margins. Temperature range for growth
is 25-45 ºC (optimum 30-37 ºC). Optimal growth in aerobic atmosphere
supplemented with 5% CO2. Weak growth is observed in microaerophilic conditions.
No growth is observed under anaerobic conditions in the absence of CO2.
light-cream colored and circular with regular margins. Temperature range for growth
is 25-45 ºC (optimum 30-37 ºC). Optimal growth in aerobic atmosphere
supplemented with 5% CO2. Weak growth is observed in microaerophilic conditions.
No growth is observed under anaerobic conditions in the absence of CO2.
Isolated from the fecal flora of a healthy patient in Senegal. Susceptible to ticarcillin, imipenem, trimethoprim/sulfamethoxazole,
gentamicin, amikacin, and colimycin. Resistant to fosfomycin and nitrofurantoin.
gentamicin, amikacin, and colimycin. Resistant to fosfomycin and nitrofurantoin.
Undetermined.
- Lagier JC, El Karkouri K, Mishra AK, Robert C, Raoult D, Fournier PE. Non contiguous-finished genome sequence and description
of Enterobacter massiliensis sp. nov. Stand Genomic Sci 2013; 7:399-412. - Alnajar S, Gupta RS. Phylogenomics and comparative genomic studies delineate six main clades within the family
Enterobacteriaceae and support the reclassification of several polyphyletic members of the family. Infect Genet Evol 2017; 54:108-
127. - Ma Y, Yao R, Li Y, Wu X, Li S, An Q. Proposal for Unification of the Genus Metakosakonia and the Genus Phytobacter to a Single
Genus Phytobacter and Reclassification of Metakosakonia massiliensis as Phytobacter massiliensis comb. nov. Curr Microbiol
2020; 77:1945-1954.
Description is based mainly on API 20E (bioMerieux) results.
Positive results for catalase, indole production, beta-galactosidase, acid production from glucose, mannitol, sorbitol and rhamnose.
Negative results for arginine dihydrolase, citrate utilization, gelatin hydrolysis, H2S production, nitrate reduction, lysine decarboxylase,
ornithine decarboxylase, oxidase, urease, Voges-Proskuer test, acid production from amygdalin, arabinose, inositol, melibiose, and
sucrose.
Positive results for catalase, indole production, beta-galactosidase, acid production from glucose, mannitol, sorbitol and rhamnose.
Negative results for arginine dihydrolase, citrate utilization, gelatin hydrolysis, H2S production, nitrate reduction, lysine decarboxylase,
ornithine decarboxylase, oxidase, urease, Voges-Proskuer test, acid production from amygdalin, arabinose, inositol, melibiose, and
sucrose.
(c) Costin Stoica
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