| Alkalicoccobacillus gibsonii |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Caryophanales, Family Bacillaceae, Genus Alkalicoccobacillus,
Alkalicoccobacillus gibsonii (Nielsen et al. 1995) Kim et al. 2023.
Synonyms: Bacillus gibsonii Nielsen, Fritze and Priest 1995. Shouchella gibsonii (Nielsen et al. 1995) Joshi et al. 2022
Alkalicoccobacillus gibsonii (Nielsen et al. 1995) Kim et al. 2023.
Synonyms: Bacillus gibsonii Nielsen, Fritze and Priest 1995. Shouchella gibsonii (Nielsen et al. 1995) Joshi et al. 2022
Stout rods, 0.6-1.0 x 2.0-3.0 µm, forming subterminally, ellipsoidal (0.6-1.0 x 0.8-1.6
µm) endospores (in ageing cultures are paracentrally and occasionally laterally) in
unswollen sporangia.
µm) endospores (in ageing cultures are paracentrally and occasionally laterally) in
unswollen sporangia.
Colonies are yellow, smooth, shiny and circular. Aerobic. Alkalitolerant. Growth
occurs at pH 7 and 8 (optimum) and at 20-30 ºC (variable growth at 10 & 37 ºC).
Allantoin, urate or NaCl are not required for growth. Growth occurs in nutrient broth
with 2-9% NaCl added. Variable growth in 10% and 12% NaCl.
occurs at pH 7 and 8 (optimum) and at 20-30 ºC (variable growth at 10 & 37 ºC).
Allantoin, urate or NaCl are not required for growth. Growth occurs in nutrient broth
with 2-9% NaCl added. Variable growth in 10% and 12% NaCl.
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. - Kim KH, Han DM, Lee JK, Jeon CO. Alkalicoccobacillus porphyridii sp. nov., isolated from a marine red alga, reclassification of
Shouchella plakortidis and Shouchella gibsonii as Alkalicoccobacillus plakortidis comb. nov. and Alkalicoccobacillus gibsonii
comb. nov., and emended description of the genus Alkalicoccobacillus Joshi et al. 2022. Int J Syst Evol Microbiol 2023; 73:6019.
Positive results for lactose utilization, hydrolysis of gelatin and casein.
Negative results for glycogen utilization, N-acetylglucosamine utilization, deamination of phenylalanine, hydrolysis of hippurate,
hydrolysis of starch, hydrolysis of pullulan, hydrolysis of Tween 20 and 80.
Variable results for nitrate reduction, hydrolysis of Tween 40 and 60.
Negative results for glycogen utilization, N-acetylglucosamine utilization, deamination of phenylalanine, hydrolysis of hippurate,
hydrolysis of starch, hydrolysis of pullulan, hydrolysis of Tween 20 and 80.
Variable results for nitrate reduction, hydrolysis of Tween 40 and 60.
(c) Costin Stoica
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