Thiomonas Moreira and Amils 1997
General information
Description and emendation
The cells of Thiomonas species are gram-negative, non-spore-forming, short rods that are about 0.3 to 0.5 µm wide and 1 to 3 µm long. Each cell is motile by means of one polar flagellum. Obligate aerobes. The optimum temperature is between 30 and 36°C for the mesophilic species and 50°C for the moderately thermophilic species. The optimum pH is between 3 and 6. Not able to denitrify. Facultative chemolithoautotrophs. Optimum growth occurs in mixotrophic media supplemented with reduced sulfur compounds and organic supplements, such as yeast extract, peptone, some sugars, and some amino acids. Organotrophic growth occurs on yeast extract, peptone, Casamino Acids, and meat extract. Lithoautotrophic growth occurs on thiosulfate, tetrathionate, H2S, and elemental sulfur. No oxidation of ferrous iron occurs. Sulfuric acid is formed during lithotrophic growth. Sensitive to ampicillin. Contains ubiquinone 8. The G+C content of the DNA is between 61 and 69 mol%.
1: Gram-negative, non-spore-forming, short rods that are about 0.3-0.9 μm wide and 1-4 μm long. Cells of most species are motile by means of a single polar flagellum. Obligate aerobes. Optimum temperature 30-37°C for mesophilic species and 50-53°C for the moderately thermophilic species. Optimum pH between 3 and 6. The recognized species are facultative chemolithoautotrophs; optimum growth typically occurs in mixotrophic media supplemented with reduced sulfur compounds and organic supplements (yeast extract, peptone, some sugars or amino acids). Chemoorganotrophic growth is obtained on yeast extract, Casamino acids, peptone and meat extract. Most strains can grow chemolithoautotrophically with thiosulfate, tetrathionate, elemental sulfur or H2S. Some strains can grow on carbon disulfide, dimethylsulfide or dimethyldisulfide as energy sources. Some strains oxidize ferrous iron [Fe(II)] and arsenite [As(III)], and some can oxidize and grow on metal sulfides, including chalcopyrite, arsenopyrite, sphalerite, galena and some synthetic sulfides. Sensitive to ampicillin. Major ubiquinone is Q-8. DNA G+C content is 61-69 mol%.
Subdivision(s)
MID | Name | Rank | Taxon ID |
---|---|---|---|
MSG072220 | 'Thiomonas C4W-32' | Species | |
MSG073132 | 'Thiomonas bacterium' | Species | |
MSG073438 | 'Thiomonas sp.' | Species | |
M022503010019002 | Thiomonas arsenitoxydans | Species | 426114 |
M022503010019003 | Thiomonas bhubaneswarensis | Species | 339866 |
M022503010019004 | Thiomonas delicata | Species | 364030 |
M022503010019001 | Thiomonas intermedia | Species | 926 |
M022503010019005 | Thiomonas islandica | Species | 545537 |
M022503010019006 | Thiomonas perometabolis | Species | 928 |
M022503010019007 | Thiomonas thermosulfata | Species | 40991 |