Comamonadaceae Willems et al. 1991
General information
Description and emendation
Cells are straight or slightly curved rods or spirilla. Gram negative. Mostly motile by means of either one polar flagellum, bipolar tufts of one to five flagella, or degenerate peritrichous flagella. No endospores or microcysts are formed. Coccoid bodies are rarely formed in some [Aquaspirillurn] species. Chemoorganotrophic or chemolithotrophic at the expense of H2 or CO oxidation. Oxidative metabolism, using oxygen as a terminal electron acceptor; some species can also use nitrates. Oxidase positive, except for members of the genus Xylophilus. The optimal growth temperature ranges from 28 to 30°C, except for Xylophilus spp. and [Aquaspirillum] psychrophilum, which grow best at 24 and 18°C, respectively. Yellow insoluble pigments are produced by Xylophilus, Hydrogenophaga, and Variovorax strains. Nitrogen fixation has been described for some Hydrogenophaga strains. Generally, these organisms use only very few carbohydrates, but they use a wide variety of organic acids, including amino acids. The major fatty acids are palmitoleic acid (16:1), palmitic acid (16:0), and cis-vaccenic acid (Δ11-18:1). The mean G+C contents of the DNAs range from 57 to 70 mol%. Strains have been isolated from soil, water in natural and industrial environments, clinical samples, and infected plant material. No pathogenic effects have been reported for the strains isolated from clinical samples (genera Comamonas and Acidovorax). Members of the genus Xylophilus are pathogenic for grapevines, and the strains belonging to the [P.] avenae rRNA branch are pathogenic for various grasses, orchids, or members of the family Cucurbitaceae. The family Comamonadaceae belongs to rRNA superfamily III or the beta subclass of the Proteobacteria. Strains belonging to this family have Tm(elvalues of at least 75°C versus rRNA from C. acidovorans Stanier 14T. All strains group within a detlTm(e) range of 5°C. The type genus is Comamonas. The following other taxa belong to the Comamonadaceae: the genera Acidovorax, Variovorax, Hydrogenophaga, and Xylophilus, [Aquaspirillum] anulus, [Aquaspirillum] delicatum, [Aquaspirillum] giesbergeri, [Aquaspirillum] gracile, [Aquaspirillum] metamorphum, [Aquaspirillum] sinuosum, [Aquaspirillum] psychrophilum, and the [P.] avenae rRNA branch, which contains [Pseudomonas] cattleyae, '[Pseudomonas] setariae', [Pseudomonas] rubrilineans, [Pseudomonas pseudoalcaligenes] subsp. citrulli, and [Pseudomonus pseudoalcaligenes] subsp. konjaci.
Subdivision(s)
MID | Name | Rank | Taxon ID |
---|---|---|---|
MSG073516 | 'Comamonadaceae bacterium' | Species | |
MSG073506 | 'Serpentinimonas maccroryi' | Species | |
MSG073244 | 'Serpentinomonas mccroryi' | Species | |
M022503010301 | Acidovorax | Genus | 12916 |
M022503010302 | Alicycliphilus | Genus | 201096 |
M022503010303 | Brachymonas | Genus | 28219 |
M022503010304 | Caenimonas | Genus | 763439 |
M022503010305 | Caldimonas | Genus | 196013 |
M022503010336 | Calidifontimicrobium | Genus | |
M022503010306 | Comamonas | Genus | 283 |
M022503010307 | Corticibacter | Genus | 1758230 |
M022503010308 | Curvibacter | Genus | 281915 |
M022503010309 | Delftia | Genus | 80865 |
M022503010310 | Diaphorobacter | Genus | 238749 |
M022503010311 | Extensimonas | Genus | 1434001 |
M022503010312 | Giesbergeria | Genus | 352449 |
M022503010313 | Hydrogenophaga | Genus | 47420 |
M022503010314 | Hylemonella | Genus | 232523 |
M022503010315 | Kinneretia | Genus | 683756 |
M022503010316 | Lampropedia | Genus | 198705 |
M022503010317 | Limnohabitans | Genus | 665874 |
M022503010318 | Macromonas | Genus | 183669 |
M022503010319 | Malikia | Genus | 263066 |
M022503010320 | Melaminivora | Genus | 1649468 |
M022503010321 | Oryzisolibacter | Genus | 2038733 |
M022503010322 | Ottowia | Genus | 219181 |
M022503010323 | Pelomonas | Genus | 335058 |
M022503010324 | Polaromonas | Genus | 52972 |
M022503010325 | Pseudacidovorax | Genus | 433923 |
M022503010326 | Pseudorhodoferax | Genus | 747294 |
M022503010337 | Pulveribacter | Genus | 2678886 |
M022503010327 | Ramlibacter | Genus | 174951 |
M022503010328 | Rhodoferax | Genus | 28065 |
M022503010329 | Schlegelella | Genus | 215579 |
M022503010330 | Simplicispira | Genus | 352450 |
M022503010331 | Tibeticola | Genus | 1940136 |
M022503010332 | Variovorax | Genus | 34072 |
M022503010333 | Verminephrobacter | Genus | 364316 |
M022503010334 | Xenophilus | Genus | 151754 |
M022503010335 | Zhizhongheella | Genus | 1649514 |