Metasolibacillus
| Metasolibacillus | |
|---|---|
Scientific classification 
| |
| Domain: | Bacteria |
| Phylum: | Bacillota |
| Class: | Bacilli |
| Order: | Caryophanales |
| Family: | Caryophanaceae |
| Genus: | Metasolibacillus Gupta and Patel. 2020 |
| Species | |
|
based on LPSN 2021 | |
Metasolibacillus is a genus of gram-positive rod-shaped bacteria in the family Caryophanaceae from the order Caryophanales.[1] The type species of this genus is Metasolibacillus meyeri.[2]
Members of Metasolibacillus are previously species belonging to Lysinibacillus and Bacillus. Instead of branching with species from their respective genus, these four species formed a monophyletic branch in various phylogenetic trees constructed based on conserved genome sequences, indicating their phylogenetic relatedness.[1] The family Caryophanaceae encompassed many branching anomalies such as this one, partially due to the reliance on 16S rRNA sequences as a method for classification, which is known to have low resolution power and give differing results depending on the algorithm used.[3] In 2020, a comparative genomic study emended the family, resulting in the establishment of three new genera, including Metasolibacillus.[1]
The name Metasolibacillus is derived from the Greek adjective meta, translating into "besides" and the Latin term Solibacillus, referring the genus name. Together, Metasolibacillus can be translated as a genus besides Solibacillus.[1]
Biochemical characteristics and molecular signatures[1][edit]
Members of this genus are aerobic, motile and endospore-forming. Metasolibacillus can grow in temperatures ranging from 10 °C to 45 °C but the optimal growth temperature is in the range of 30-37 °C. Studied species are reported to be positive for catalase and Voges–Proskauer tests.
12 conserved signature indels (CSIs) were identified as exclusively present in this genus in the following proteins: DUF456 domain-containing protein, toxic anion resistance protein, undecaprenyldiphosphomuramoylpentapeptide beta-N-acetylglucosaminyltransferase, c-type cytochrome biogenesis protein CcsB, thiol-disulfide oxidoreductase ResA, hypothetical proteins, arginase, preprotein translocase subunit SecY, ATP-binding cassette domain-containing protein, and purine permease.[1] These CSIs were identified through genomic analysis and serve as a reliable molecular means for identifying and distinguishing members of this genus from other genera within the family Caryophanaceae and all other bacteria.
Taxonomy[edit]
Metasolibacillus, as of 2021, contains one species with a validly published name.[2] This genus was identified as a monophyletic clade and phylogenetically unrelated to other species in the family Caryophanaceae in studies examining the taxonomic relationships within the family.[1]
There are three species that are non-validly published, but are considered to be members of this genus due to shared molecular markers and grouping on phylogenetic trees with the type species.
References[edit]
- ^ a b c d e f g Gupta, Radhey S.; Patel, Sudip (2020-01-14). "Robust Demarcation of the Family Caryophanaceae (Planococcaceae) and Its Different Genera Including Three Novel Genera Based on Phylogenomics and Highly Specific Molecular Signatures". Frontiers in Microbiology. 10: 2821. doi:10.3389/fmicb.2019.02821. ISSN 1664-302X. PMC 6971209. PMID 32010063.
- ^ a b "Genus: Metasolibacillus". lpsn.dsmz.de. Retrieved 2021-06-05.
- ^ Ludwig, Wolfgang; Schleifer, Karl‐Heinz; Whitman, William B. (2015-09-14). "Planococcaceae". Bergey's Manual of Systematics of Archaea and Bacteria: 1. doi:10.1002/9781118960608.fbm00116. ISBN 9781118960608.