Niallia circulans

Niallia circulans
Scientific classification
Missing taxonomy template ( fix ):	Niallia
Species:	Template:Taxonomy/Niallia N. circulans
Binomial name
	Template:Taxonomy/Niallia Niallia circulans; (Jordan 1890) Gupta et al. 2020
Synonyms
	Bacillus circulans Jordan, 1890 (Approved Lists 1980);

Last updated June 12, 2025

Niallia 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]

Morphology

Staining

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

Shape and size

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

↑ "Bacillus circulans". The Free Dictionary by Farlex. Retrieved 12 December 2015.
1 2 3 4 "ABIS Encyclopedia: Bacillus Circulans". Advanced Bacterial Identification Software Encyclopedia. Retrieved 12 December 2015.
↑ 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. PMID 33112222.

External links

Type strain of Bacillus circulans at BacDive - the Bacterial Diversity Metadatabase

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[1] "Bacillus circulans". The Free Dictionary by Farlex. Retrieved 12 December 2015.

[ABIS-2] 1 2 3 4 "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. PMID 33112222.

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