| Halalkalibacterium halodurans |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Halalkalibacterium, Halalkalibacterium
halodurans (Nielsen et al. 1995 ex Boyer et al. 1973) Joshi et al. 2022.
Synonyms: Bacillus halodurans Nielsen, Fritze and Priest 1995, Bacillus alcalophilus subsp. halodurans Boyer et al., 1973 (the type
strain), Bacillus lentus type lll Gordon and Hyde 1982, Bacillus okuhidensis Li et al. 2002.
halodurans (Nielsen et al. 1995 ex Boyer et al. 1973) Joshi et al. 2022.
Synonyms: Bacillus halodurans Nielsen, Fritze and Priest 1995, Bacillus alcalophilus subsp. halodurans Boyer et al., 1973 (the type
strain), Bacillus lentus type lll Gordon and Hyde 1982, Bacillus okuhidensis Li et al. 2002.
Rods, 0.5-0.6 x 3.0-4.0 µm, occuring in long chains even when sporulated. Produce
subterminally, ellipsoidal (0.5-0.6 x 0.8-1.2 µm) endospores in slightly swollen
sporangia.
subterminally, ellipsoidal (0.5-0.6 x 0.8-1.2 µm) endospores in slightly swollen
sporangia.
Colonies are white with slightly filamentous margins. Aerobic. Alkaliphilic and
moderately halotolerant. Growth occurs at pH 7 to 10 (optimum pH 9-10) and at 15 -
55 ºC. Grow in nutrient broth with 2-12% NaCl added. Allantoin, urate or NaCl are not
required for growth.
moderately halotolerant. Growth occurs at pH 7 to 10 (optimum pH 9-10) and at 15 -
55 ºC. Grow in nutrient broth with 2-12% NaCl added. Allantoin, urate or NaCl are not
required for growth.
Isolated from soil.
Unknown.
- 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. - Nielsen P., Fritze D. and Priest F. G., 1995. Phenetic diversity of alkaliphilic Bacillus strains: proposal for nine new species.
Microbiology 141, 1745-1761. - 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 hydrolysis of gelatin, hydrolysis of casein, hydrolysis of starch, hydrolysis of Tween 40 and 60.
Negative results for deamination of phenylalanine, hydrolysis of hippurate, hydrolysis of Tween 20 and 80.
Variable results for nitrate reduction.
Negative results for deamination of phenylalanine, hydrolysis of hippurate, hydrolysis of Tween 20 and 80.
Variable results for nitrate reduction.
(c) Costin Stoica
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