Bacillus circulans

Bacillus circulans is a soil-dwelling human pathogen which has been associated with "septicemia, mixed abscess infections, and wound infections",[1] as well as with meningitis.[2]

Bacillus circulans
Scientific classification
Domain: Bacteria
Phylum: Bacillota
Class: Bacilli
Order: Bacillales
Family: Bacillaceae
Genus: Bacillus
Species:
B. circulans
Binomial name
Bacillus circulans
Jordan, 1890

This species has been recently transferred into the genus Niallia.[3] The correct nomenclature is Niallia circulans.

Morphology

Staining

Gram-positive, Gram-variable or Gram-negative. Positive spore stain result.[2]

Vegetative cell

Straight, occasionally curved rods, 2.0-4.2 x 0.5-0.8 μm, motile by peritrichous flagella.[2]

Spores

Has ellipsoidal spores which are subterminal or terminal; swelling the sporangia. These are "centrally located" and either cylindrical or "Kidney-shaped".[2]

References
  1. "Bacillus circulans". The Free Dictionary by Farlex. Retrieved 12 December 2015.
  2. "ABIS Encyclopedia: Bacillus Circulans". Advanced Bacterial Identification Software Encyclopedia. Retrieved 12 December 2015.
  3. Gupta, Radhey S.; Patel, Sudip; Saini, Navneet; Chen, Shu (2020-11-01). "Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species". International Journal of Systematic and Evolutionary Microbiology. 70 (11): 5753–5798. doi:10.1099/ijsem.0.004475. ISSN 1466-5026.


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