Ureibacillus

Ureibacillus is a genus of gram-positive bacteria within the largely gram-positive Bacillota.^[2] Ureibacilli are motile and form spherical endospores. The type species of the genus is Ureibacillus thermosphaericus.^[2]

Ureibacillus
Scientific classification
Domain:	Bacteria
Phylum:	Bacillota
Class:	Bacilli
Order:	Caryophanales
Family:	Caryophanaceae
Genus:	Ureibacillus Fortina et al. 2001[1]
Type species
Ureibacillus thermosphaericus (Andersson et al. 1996) Fortina et al. 2001
Species
See text

History

The genus Ureibacillus was split from the genus Bacillus in 2001 to encompass Bacillus thermosphaericus (now Ureibacillus thermosphaericus) as well as several newly discovered similar strains of bacteria.^[2]

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.^[3] 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]

Analysis of genome sequences from Ureibacillus species identified three conserved signature indels (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.^[3] These CSIs provide a reliable molecular method for distinguishing Ureibacillus species from other genera within the family Caryophanaceae and all other bacteria.

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)^[1] and National Center for Biotechnology Information (NCBI)^[4]

16S rRNA based LTP_10_2024[5][6][7]

120 marker proteins based GTDB 09-RS220[8][9][10]

Ureibacillus U. defluvii Zhou et al. 2014 U. thermosphaericus U. terrenus U. composti Weon et al. 2007 non (Hayat et al. 2014) Li et al. 2024 U. suwonensis Kim et al. 2006 U. thermophilus Lysinibacillus ~1 "U. alkaliphilus" (Zhao et al. 2015) Gupta and Patel 2020 U. composti (Hayat et al. 2014) Li et al. 2024 non Weon et al. 2007 Lysinibacillus ~2 "U. halotolerans" "U. antri" U. endophyticus U. xlyeni Gupta & Patel 2020 Ureibacillus ~1 U. massiliensis U. acetophenoni U. manganicus "U. telephonicus" U. yapensis Ureibacillus ~2 U. chungkukjangi U. sinduriensis

Ureibacillus U. thermosphaericus (Andersson et al. 1996) Fortina et al. 2001 U. terrenus Fortina et al. 2001 U. thermophilus Weon et al. 2007 U. composti Weon et al. 2007 non (Hayat et al. 2014) Li et al. 2024 U. composti (Hayat et al. 2014) Li et al. 2024 non Weon et al. 2007 U. massiliensis (Glazunova, Raoult & Roux 2006) Gupta & Patel 2020 "Lysinibacillus timonensis" Ndiaye et al. 2019 U. acetophenoni (Azmatunnisa et al. 2015) Gupta & Patel 2020 U. manganicus (Liu et al. 2013) Gupta & Patel 2020 "U. antri" (Narsing Rao et al. 2020) Yadav et al. 2024 U. endophyticus (Yu et al. 2017) Li et al. 2024 U. xlyeni Gupta & Patel 2020 "U. telephonicus" (Rahi et al. 2017) Gupta and Patel 2020 U. galli Pallen 2024 "U. halotolerans" (Kong et al. 2014) Gupta and Patel 2020 U. yapensis (Yu et al. 2020) Li et al. 2024 U. chungkukjangi (Kim et al. 2013) Gupta & Patel 2020 U. sinduriensis (Jung et al. 2012) Gupta & Patel 2020

Unassigned species:

• "U. aquaedulcis" Yadav et al. 2024

See also

• List of bacterial orders
• List of bacteria genera