''Ureibacillus'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of
gram-negative bacteria
Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wa ...
within the largely
gram-positive
In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall.
Gram-positive bac ...
Bacillota
The Bacillota (synonym Firmicutes) are a phylum of bacteria, most of which have gram-positive cell wall structure. The renaming of phyla such as Firmicutes in 2021 remains controversial among microbiologists, many of whom continue to use the ea ...
.
''Ureibacilli'' are
motile
Motility is the ability of an organism to move independently, using metabolic energy.
Definitions
Motility, the ability of an organism to move independently, using metabolic energy, can be contrasted with sessility, the state of organisms th ...
and form spherical
endospore
An endospore is a dormant, tough, and non-reproductive structure produced by some bacteria in the phylum Bacillota. The name "endospore" is suggestive of a spore or seed-like form (''endo'' means 'within'), but it is not a true spore (i.e., not ...
s. The type species of the genus is ''
Ureibacillus thermosphaericus
''Ureibacillus'' is a genus of gram-negative bacteria within the largely gram-positive Bacillota. ''Ureibacilli'' are motile and form spherical endospores. The type species of the genus is '' Ureibacillus thermosphaericus''.
History
The ge ...
''.
[
]
History
The genus ''Ureibacillus'' was split from the genus ''Bacillus
''Bacillus'' (Latin "stick") is a genus of Gram-positive, rod-shaped bacteria, a member of the phylum '' Bacillota'', with 266 named species. The term is also used to describe the shape (rod) of other so-shaped bacteria; and the plural ''Bacil ...
'' in 2001 to encompass ''Bacillus thermosphaericus'' (now ''Ureibacillus thermosphaericus'') as well as several newly discovered similar strains of bacteria.[
In 2020, multiple ''Lysinibacillus'' species were transferred into ''Ureibacillus'' based on branching patterns in various phylogenetic trees constructed based on conserved genome sequences, indicating their phylogenetic relatedness.]Caryophanaceae
The ''Caryophanaceae'' is a family of Gram-positive bacteria. In 2020, the now defunct family ''Planococcaceae'' was merged into ''Caryophanaceae'' to rectify a nomenclature anomaly. The type genus of this family is '' Caryophanon.''
The family ...
'' 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.conserved signature indels Conserved signature inserts and deletions (CSIs) in protein sequences provide an important category of molecular markers for understanding phylogenetic relationships. CSIs, brought about by rare genetic changes, provide useful phylogenetic markers ...
(CSIs) that are uniquely present in this genus in the following proteins: MFS transporter, EamA family transporter, and DNA internalization-related competence protein ComEC/Rec2.
References
External links
LPSN page on Ureibacillus
{{Taxonbar, from=Q15616678
Bacillales
Bacteria genera