| Turicibacter bilis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Erysipelotrichia, Order Erysipelothrichales, Family Turicibacteraceae, Genus Turicibacter,
Turicibacter bilis Maki and Looft 2022.
Turicibacter bilis Maki and Looft 2022.
Gram-positive, pleomorphic cells (long chains of irregular rods of 0.8-8.2 x 0.5-2.0 μm,
individual or clusters of coccoid cells of 1.0-2.3 μm. Non-motile, Produces spores.
Supplementation of media with 0.1% (v/v) chicken bile induces spore germination.
individual or clusters of coccoid cells of 1.0-2.3 μm. Non-motile, Produces spores.
Supplementation of media with 0.1% (v/v) chicken bile induces spore germination.
Colonies are visible on BHIGL agar after 1-2 days and appear as small to medium-
sized irregularly shaped, umbonate colonies with undulating margins, with the raised
centre an opaque white that transitions to a translucent tan or grey at the margins.
Colonies are 2.5–5.0 mm after 3 days at 42 ºC. Growth is poor in broth alone, but
improves significantly in biphasic media or broth with an agar plug. Grows between
30-45 ºC (optimally at 42 ºC) and at pH 6.5-8.5 (optimally at pH 7.5). The primary
fermentation end products are acetate, butyrate and lactate. The organism is positive
for arginine and gelatin biochemical reactivity. Strictly anaerobic.
sized irregularly shaped, umbonate colonies with undulating margins, with the raised
centre an opaque white that transitions to a translucent tan or grey at the margins.
Colonies are 2.5–5.0 mm after 3 days at 42 ºC. Growth is poor in broth alone, but
improves significantly in biphasic media or broth with an agar plug. Grows between
30-45 ºC (optimally at 42 ºC) and at pH 6.5-8.5 (optimally at pH 7.5). The primary
fermentation end products are acetate, butyrate and lactate. The organism is positive
for arginine and gelatin biochemical reactivity. Strictly anaerobic.
Isolated from the eggshell of two separate white leghorn chicken flocks and the ileum of a healthy pig.
Susceptible to penicillin, kanamycin and vancomycin. Resistant to colistin.
Susceptible to penicillin, kanamycin and vancomycin. Resistant to colistin.
Undetermined.
- Maki JJ, Looft T. Turicibacter bilis sp. nov., a novel bacterium isolated from the chicken eggshell and swine ileum. Int J Syst Evol
Microbiol 2022; 72:5153. - Imamura Y, Motooka D, Nakajima Y, Ito S, Kitakaze M, Iida T, Nakamura S. Turicibacter faecis sp. nov., isolated from faeces of
heart failure mouse model. Int J Syst Evol Microbiol 2024; 74:6379.
Positive results for arginine arylamidase and utilization of gelatin.
Negative results for catalase, alpha-glucosidase, alpha-galactosidase, glycine arylamidase and serine arylamidase
No utilization of: methyl-beta-D-xylopyranoside, D-glucose, arbutin, alicin D-cellobiose D-maltose, D-lactose (bovine origin) and
5-ketogluconate.
Variable utilization of aesculin.
Negative results for catalase, alpha-glucosidase, alpha-galactosidase, glycine arylamidase and serine arylamidase
No utilization of: methyl-beta-D-xylopyranoside, D-glucose, arbutin, alicin D-cellobiose D-maltose, D-lactose (bovine origin) and
5-ketogluconate.
Variable utilization of aesculin.
(c) Costin Stoica
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