Salisediminibacterium
Salisediminibacterium is a genus of Gram-positive bacteria from the family of Bacillaceae.[1][2][3] The type species is Salisediminibacterium halotolerans.[1]
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| Genus: | Salisediminibacterium Jiang et al. 2012[1] |
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Salisediminibacterium beveridgei and Salisediminibacterium selenitireducens were previously species belonging to Bacillus, a genus that has been recognized as displaying extensive polyphyly and has been restricted by recent phylogenetic studies to only include species closely related to Bacillus subtilis and Bacillus cereus. [4][5]
The name Salisediminibacterium is derived from the prefix "-salisedimini" (from the Latin noun sal, which translates to "salt" and the Latin noun sedimen, referring to sediment), and the suffix "-bacterium" (from the Latin noun bacterium, referring to a rod).[5] Together, Salisediminibacterium translates to a rod from salt sediment.
Biochemical Characteristics and Molecular Signatures[5][6]
Cells are either non-spore formers or spore forming and are variably motile. Catalase and nitrate reduction activities are variable. Most species are halophilic and alkali-tolerant requiring a minimum of 1% (w/v) NaCl in the medium for growth to occur. S. selenitireducens demonstrates weak microaerophilic growth and anaerobic respiratory growth with Se(IV), As(V), nitrate, nitrite, trimethylamine oxide and fumarate as electron acceptors.
Analyses of genome sequences from Salisediminibacterium species identified four conserved signature indels (CSIs) for this genus in the following proteins: insulinase family protein, alpha-ketoacid dehydrogenase subunit beta, MBL fold metallo-hydrolase and excinuclease ABC subunit UvrA, which in most cases are exclusively shared by either all or most members of this genus.[5] These CSIs provide a reliable method of identification and differentiation for this genus from other Bacillaceae genera and bacteria.
Taxonomy
Salisediminibacterium, as of May 2021, contains a total of 5 species with validly published names.[1] This branching pattern is also observed in the Genome Taxonomy Database (GTDB).[7]
References
- Parte, A.C. "Salisediminibacterium". LPSN.
- "Salisediminibacterium". www.uniprot.org.
- Parker, Charles Thomas; Garrity, George M. "Nomenclature Abstract for Salisediminibacterium Jiang et al. 2012 emend. Sultanpuram et al. 2015". The NamesforLife Abstracts. doi:10.1601/nm.23320.
- 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.
- 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.
- Parker, Charles Thomas; Osier, Nicole Danielle; Garrity, George M. "Nomenclature Abstract for Caldalkalibacillus Xue et al. 2006 emend. Zhao et al. 2008". The NamesforLife Abstracts. doi:10.1601/nm.10093.
- "GTDB - Tree". gtdb.ecogenomic.org. Retrieved 2021-05-28.
Further reading
- Sultanpuram, VR; Mothe, T; Mohammed, F (May 2015). "Salisediminibacterium haloalkalitolerans sp. nov., isolated from Lonar soda lake, India, and a proposal for reclassification of Bacillus locisalis as Salisediminibacterium locisalis comb. nov., and the emended description of the genus Salisediminibacterium and of the species Salisediminibacterium halotolerans". Archives of Microbiology. 197 (4): 553–60. doi:10.1007/s00203-015-1081-8. PMID 25638045.
- Jiang, F; Cao, SJ; Li, ZH; Fan, H; Li, HF; Liu, WJ; Yuan, HL (September 2012). "Salisediminibacterium halotolerans gen. nov., sp. nov., a halophilic bacterium from soda lake sediment". International Journal of Systematic and Evolutionary Microbiology. 62 (Pt 9): 2127–32. doi:10.1099/ijs.0.034488-0. PMID 22039006.