Bacillus flexus

Bacillus flexus
	Bacillus flexus Gram stain under 1000 magnification
Scientific classification
Domain:	Bacteria
Phylum:	Bacillota
Class:	Bacilli
Order:	Bacillales
Family:	Bacillaceae
Genus:	Bacillus
Species:	Bacillus flexus

Bacillus flexus is an aerobic, Gram-variable, rod-shaped, endospore-forming, oxidase-positive bacterium. The endospores are ellipsoidal, located in central/paracentral, unswollen sporangia. In laboratory conditions, it produces opaque, creamish, raised-margin colonies at 30 ± 2°C when incubated for 24–72 hrs. on tryptic soy agar. This bacterial species may be isolated from feces (poultry) and soil.

Human pathogenicity has not been well described yet.^[1]^[2]

This species has been recently proposed to be transferred into the genus Priestia.^[3] The correct nomenclature would then be Priestia flexa.

References

^ Zhao, Jian; Lan, Xiaojun; Su, Jun; Sun, Lei; Rahman, Erkin (June 2008). "Isolation and identification of an alkaliphilic Bacillus flexus XJU-3 and analysis of its alkaline amylase". Wei Sheng Wu Xue Bao = Acta Microbiologica Sinica. 48 (6): 750–756. ISSN 0001-6209. PMID 18720839.
^ Jebeli, Mohammad Ahmadi; Maleki, Afshin; Amoozegar, Mohammad Ali; Kalantar, Enayatollah; Izanloo, Hassan; Gharibi, Fardin (2017-02-01). "Bacillus flexus strain As-12, a new arsenic transformer bacterium isolated from contaminated water resources". Chemosphere. 169: 636–641. Bibcode:2017Chmsp.169..636J. doi:10.1016/j.chemosphere.2016.11.129. ISSN 0045-6535. PMID 27912188.
^ 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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[1] Zhao, Jian; Lan, Xiaojun; Su, Jun; Sun, Lei; Rahman, Erkin (June 2008). "Isolation and identification of an alkaliphilic Bacillus flexus XJU-3 and analysis of its alkaline amylase". Wei Sheng Wu Xue Bao = Acta Microbiologica Sinica. 48 (6): 750–756. ISSN 0001-6209. PMID 18720839.

[2] Jebeli, Mohammad Ahmadi; Maleki, Afshin; Amoozegar, Mohammad Ali; Kalantar, Enayatollah; Izanloo, Hassan; Gharibi, Fardin (2017-02-01). "Bacillus flexus strain As-12, a new arsenic transformer bacterium isolated from contaminated water resources". Chemosphere. 169: 636–641. Bibcode:2017Chmsp.169..636J. doi:10.1016/j.chemosphere.2016.11.129. ISSN 0045-6535. PMID 27912188.

[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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