| Alkalihalophilus pseudofirmus |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Alkalihalophilus, Alkalihalophilus
pseudofirmus (Nielsen et al. 1995) Joshi et al. 2022
Synonym: Bacillus pseudofirmus Nielsen, Fritze and Priest 1995, Alkalihalobacillus pseudofirmus (Nielsen et al. 1995) Patel and
Gupta 2020..
It's phenotypically similar to Bacillus firmus, but alkalophilic and phylogenetically distinct.
pseudofirmus (Nielsen et al. 1995) Joshi et al. 2022
Synonym: Bacillus pseudofirmus Nielsen, Fritze and Priest 1995, Alkalihalobacillus pseudofirmus (Nielsen et al. 1995) Patel and
Gupta 2020..
It's phenotypically similar to Bacillus firmus, but alkalophilic and phylogenetically distinct.
Rod shaped, 0.6-0.8 x 3.0-6.0 µm, producing central / subterminal, ellipsoidal
endospores (0.5-0.7 x 0.5-1.2 µm) in unswollen sporangia.
endospores (0.5-0.7 x 0.5-1.2 µm) in unswollen sporangia.
Colonies are white with irregular margins. Grow aerobically (anaerobic growth was
not tested). Alkaliphilic. Growth temperature 10-45 ºC (optimum 30 ºC); pH 7-9
(optimum pH 9). Can grow in 5-16% NaCl. NaCl, alantoin or urate are not required for
growth.
not tested). Alkaliphilic. Growth temperature 10-45 ºC (optimum 30 ºC); pH 7-9
(optimum pH 9). Can grow in 5-16% NaCl. NaCl, alantoin or urate are not required for
growth.
Isolated from soil and animal manure.
Undetermined.
- N.A. Logan and P. De Vos, 2009. Genus I. Bacillus Cohn 1872. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W. Ludwig, F.A.
Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The Firmicutes, Springer, 21-127. - P. Nielsen, D. Fritze and F.G. Priest, 1995. Phenetic diversity of alkaliphilic Bacillus strains: proposal for nine new species.
Microbiology 141, 1745-1761. - Patel S, Gupta RS. 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. Int J Syst Evol Microbiol 2020; 70:406-438. - Joshi A, Thite S, Karodi P, Joseph N, Lodha T. Alkalihalobacterium elongatum gen. nov. sp. nov.: An Antibiotic-Producing
Bacterium Isolated From Lonar Lake and Reclassification of the Genus Alkalihalobacillus Into Seven Novel Genera. Front
Microbiol 2021; 12:722369.
Positive results for deamination of phenylalanine, hydrolysis of gelatin, casein, starch, Tween 40 and Tween 60.
Negative results for nitrate reduction, hydrolysis of hippurate, Tween 20 and Tween 80.
Negative results for nitrate reduction, hydrolysis of hippurate, Tween 20 and Tween 80.
(c) Costin Stoica
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