Peribacillus

{{Short description|Genus of bacteria}}

{{Italic title}}

{{Taxobox

| domain = Bacteria

| phylum = Bacillota

| classis = Bacilli

| ordo = Bacillales

| familia = Bacillaceae

| genus = Peribacillus

| genus_authority = Patel and Gupta 2020

| type_species = Bacillaceae simplex

| type_species_authority =(Priest, Goodfellow & Todd 1989) Patel & Gupta 2020

| subdivision_ranks = Species

| subdivision =

See text

}}

Peribacillus is a genus of rod-shaped bacteria that exhibits Gram-positive or Gram-variable staining that belongs in the family Bacillaceae within the order Bacillales.{{Cite journal|last1=Patel|first1=Sudip|last2=Gupta|first2=Radhey S.|date=2020-01-01|title=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.|journal=International Journal of Systematic and Evolutionary Microbiology|language=en|volume=70|issue=1|pages=406–438|doi=10.1099/ijsem.0.003775|issn=1466-5026|pmid=31617837|doi-access=free}}{{Cite book|date=2005|editor-last=Brenner|editor-first=Don J.|editor2-last=Krieg|editor2-first=Noel R.|editor3-last=Staley|editor3-first=James T.|editor4-last=Garrity|editor4-first=George M.|editor5-last=Boone|editor5-first=David R.|editor6-last=De Vos|editor6-first=Paul|editor7-last=Goodfellow|editor7-first=Michael|editor8-last=Rainey|editor8-first=Fred A.|editor9-last=Schleifer|editor9-first=Karl-Heinz|title=Bergey's Manual® of Systematic Bacteriology|url=http://dx.doi.org/10.1007/0-387-28022-7|doi=10.1007/0-387-28022-7|isbn=978-0-387-24144-9}} The type species for this genus is Peribacillus simplex.

Members of Peribacillus were originally part of the genus Bacillus, a large, phylogenetically complicated genus with unclear evolutionary relationships.{{Cite journal|last1=Ash|first1=Carol|last2=Farrow|first2=J.A.E.|last3=Wallbanks|first3=Sally|last4=Collins|first4=M.D.|date=2008-06-28|title=Phylogenetic heterogeneity of the genus Bacillus revealed by comparative analysis of small-subunit-ribosomal RNA sequences|url=http://doi.wiley.com/10.1111/j.1472-765X.1991.tb00608.x|journal=Letters in Applied Microbiology|language=en|volume=13|issue=4|pages=202–206|doi=10.1111/j.1472-765X.1991.tb00608.x|s2cid=82988953|url-access=subscription}} The polyphyletic nature of the genus could be partially attributed to the vague criteria used to classify new species into this genus.{{Cite journal|last1=Logan|first1=N. A.|last2=Berge|first2=O.|last3=Bishop|first3=A. H.|last4=Busse|first4=H.-J.|last5=De Vos|first5=P.|last6=Fritze|first6=D.|last7=Heyndrickx|first7=M.|last8=Kampfer|first8=P.|last9=Rabinovitch|first9=L.|last10=Salkinoja-Salonen|first10=M. S.|last11=Seldin|first11=L.|date=2009-06-30|title=Proposed minimal standards for describing new taxa of aerobic, endospore-forming bacteria|journal=International Journal of Systematic and Evolutionary Microbiology|url=http://dx.doi.org/10.1099/ijs.0.013649-0|volume=59|issue=8|pages=2114–2121|doi=10.1099/ijs.0.013649-0|pmid=19567583|issn=1466-5026|doi-access=free}} To clarify the taxonomic relationships of Bacillus, multiple phylogenetic and comparative genomic analyses have been conducted, resulting in the transfer of many Bacillus species into novel genera such as Virgibacillus, Solibacillus, Brevibacillus and Ectobacillus.{{Cite journal|last1=Heyndrickx|first1=M.|last2=Lebbe|first2=L.|last3=Kersters|first3=K.|last4=Hoste|first4=B.|last5=De Wachter|first5=R.|last6=De Vos|first6=P.|last7=Forsyth|first7=G.|last8=Logan|first8=N. A.|date=1999-07-01|title=Proposal of Virgibacillus proomii sp. nov. and emended description of Virgibacillus pantothenticus (Proom and Knight 1950) Heyndrickx et al. 1998|journal=International Journal of Systematic and Evolutionary Microbiology|volume=49|issue=3|pages=1083–1090|doi=10.1099/00207713-49-3-1083|issn=1466-5026|pmid=10425765|doi-access=free}}{{Cite journal|last1=Shida|first1=O.|last2=Takagi|first2=H.|last3=Kadowaki|first3=K.|last4=Komagata|first4=K.|date=1996-10-01|title=Proposal for Two New Genera, Brevibacillus gen. nov. and Aneurinibacillus gen. nov.|journal=International Journal of Systematic Bacteriology|language=en|volume=46|issue=4|pages=939–946|doi=10.1099/00207713-46-4-939|issn=0020-7713|pmid=8863420|doi-access=free}}{{Cite journal|last1=Mual|first1=Poonam|last2=Singh|first2=Nitin Kumar|last3=Verma|first3=Ashish|last4=Schumann|first4=Peter|last5=Krishnamurthi|first5=Srinivasan|last6=Dastager|first6=Syed|last7=Mayilraj|first7=Shanmugam|date=2016-05-01|title=Reclassification of Bacillus isronensis Shivaji et al. 2009 as Solibacillus isronensis comb. nov. and emended description of genus Solibacillus Krishnamurthi et al. 2009|journal=International Journal of Systematic and Evolutionary Microbiology|language=en|volume=66|issue=5|pages=2113–2120|doi=10.1099/ijsem.0.000982|issn=1466-5026|pmid=26907585|doi-access=free}}{{Cite journal|last1=Gupta|first1=Radhey S.|last2=Patel|first2=Sudip|last3=Saini|first3=Navneet|last4=Chen|first4=Shu|date=2020-11-01|title=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|url=https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.004475|journal=International Journal of Systematic and Evolutionary Microbiology|language=en|volume=70|issue=11|pages=5753–5798|doi=10.1099/ijsem.0.004475|issn=1466-5026|pmid=33112222|doi-access=free}} In addition, the genus was restricted to only include species closely related to Bacillus subtilis and Bacillus cereus.

The name Peribacillus is derived from its placement in phylogenetic trees. The prefix "peri-" comes from the Greek preposition peri, and translates to "about, around or nearby". Bacillus comes from the Latin noun bacillus, referring to both 'a small staff or rod' and Bacillus, the bacterial genus. Put together, the name Peribacillus refers to a genus around or nearby Bacillus.