Bacillus pseudofirmus

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Bacillus pseudofirmus
Scientific classification
B. pseudofirmus
Binomial name
Bacillus pseudofirmus
Nielsen et al. 1995

Bacillus pseudofirmus is a facultative anaerobe bacterium.[1] It is a gram positive, alkaliphilic and alkalitolerant, aerobic endospore-forming bacteria.

In 2019, it was found in a hyperalkaline spring in Zambales (Philippines) a bacterial consortium of a strain of Bacillus pseudofirmus with Bacillus agaradhaerens that can biodegrade LDPE plastic.[2]

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

See also[edit]

Also undergoing research for use in geopolymers that potentially "self heal"


  1. ^ Nielsen, P.; Fritze, D.; Priest, F. G. (1995). "Phenetic diversity of alkaliphilic Bacillus strains: proposal for nine new species". Microbiology. 141 (7): 1745–1761. doi:10.1099/13500872-141-7-1745. ISSN 1350-0872.
  2. ^ G. Cada, Erika Joy (June 2019). "Enhanced in vitro biodegradation of low-density polyethylene using alkaliphilic bacterial consortium supplemented with iron oxide nanoparticles" (PDF). Philippine Science Letters. 12.
  3. ^ Patel, Sudip; Gupta, Radhey S. (2020-01-01). "A phylogenomic and comparative genomic framework for resolving the polyphyly of the genus Bacillus: Proposal for six new genera of Bacillus species, Peribacillus gen. nov., Cytobacillus gen. nov., Mesobacillus gen. nov., Neobacillus gen. nov., Metabacillus gen. nov. and Alkalihalobacillus gen. nov". International Journal of Systematic and Evolutionary Microbiology. 70 (1): 406–438. doi:10.1099/ijsem.0.003775. ISSN 1466-5026.

Further reading[edit]

Preiss, Laura; Langer, Julian D.; Hicks, David B.; Liu, Jun; Yildiz, Oezkan; Krulwich, Terry A.; Meier, Thomas (June 2014). "The c-ring ion binding site of the ATP synthase from Bacillus pseudofirmus OF4 is adapted to alkaliphilic lifestyle". Current Contents Connect. 92 (5): 973–984. doi:10.1111/mmi.12605. PMC 4064006. PMID 24707994.

External links[edit]