# Bacillales

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Order of bacteria

Bacillales Scientific classification Domain: Bacteria Kingdom: Bacillati Phylum: Bacillota Class: Bacilli Order: Bacillales Prévot 1953 Type genus Bacillus Families See text Synonyms "Plectridiales" Prevot 1938

**Bacillales**, from [Latin](/source/Latin) "bacillus", meaning "little staff, wand", are an [order](/source/Order_(biology)) of [Gram-positive bacteria](/source/Gram-positive_bacteria), placed within the [Bacillota](/source/Bacillota).[1] The *Bacillales* are the most productive order of the phylum "[Firmicutes](/source/Firmicutes)".[2] Representative [genera](/source/Genus) include *[Bacillus](/source/Bacillus)*, *[Listeria](/source/Listeria)* and *[Staphylococcus](/source/Staphylococcus)*.[3]

## Phylogeny

The currently accepted taxonomy based on the [List of Prokaryotic names with Standing in Nomenclature](/source/List_of_Prokaryotic_names_with_Standing_in_Nomenclature) (LPSN)[1] and the [National Center for Biotechnology Information](/source/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] "Bacillia" s.s. Hydrogenibacillus Thermicanales Thermicanaceae Alicyclobacillales Alicyclobacillaceae [incl. Effusibacillaceae, Kyrpidiaceae, Sulfoacidibacillaceae, Tumebacillaceae] Paenibacillales Paenibacillaceae Thermoactinomycetales Thermoactinomycetaceae Novibacillaceae Caldalkalibacillales Caldalkalibacillaceae "Caldibacillales" Caldibacillaceae Calditerricolales Calditerricolaceae Microaerobacter Desulfuribacillales Desulfuribacillaceae Tepidibacillales Tepidibacillaceae Oxalophagaceae [incl. "Ammoniphilaceae"] Aneurinibacillales Aneurinibacillaeae Brevibacillales Brevibacillaceae "Bacillus thermozeamaize" Bacillales s.s. Bacillaceae~3 Bacillaceae~4 Bacillaceae~5 Sporolactobacillaceae Bacillaceae~6 Heyndrickxiaceae Bacillaceae~7 Jeotgalibacillaceae Bacillaceae~8 Bacillaceae~9 Caryophanaceae Bacillaceae~11 Listeriaceae Exiguobacteriales Exiguobacteriaceae Staphylococcales Staphylococcaceae [incl. Abyssicoccaceae, Salinicoccaceae] Gemellaceae other Lactobacillales "Bacillia" s.s. "Pasteuriales" Pasteuriaceae Kyrpidiales Kyrpidiaceae Tumebacillales Collibacillus {BOQE01} Effusibacillaceae Tumebacillaceae Alicyclobacillales Sulfoacidibacillaceae Alicyclobacillaceae Desulfuribacillales Desulfuribacillaceae Calditerricolales Calditerricolaceae Bacillales_F "Bacillus thermozeamaize" {Bacillaceae_M} Thermicanales Thermicanaceae "Brockiales" "Brockiaceae" Thermoactinomycetales Novibacillaceae "Polycladomycesaceae" "Planifilaceae" "Desmosporaceae" Mechercharimyces {JANTPT01} Thermoactinomycetaceae Paenibacillales "Reconcilibacillaceae" "Xylanibacillaceae" Insulibacter {DA-C8} "Longirhabdaceae" Paenibacillus_AK & AE {YIM-B00363} "Gorillibacteriaceae" Paenibacillus swuensis {DY6} Paenibacillaceae DSM‑22679 Microaerobacter {DSM-22679} Aneurinibacillales "Ammoniphilaceae" Aneurinibacillaceae Brevibacillales Brevibacillaceae Tepidibacillales Tepidibacillaceae "Rubeoparvulales" "Rubeoparvulaceae" Caldalkalibacillales Caldalkalibacillus_A {JCM-10596} Caldalkalibacillaceae Exiguobacteriales Exiguobacteriaceae "Harrysmithimonadales" "Harrysmithimonadaceae" "Bacillidae" "Caldibacillales" Bacillus_CG & BF {JC228} Caldibacillaceae Heyndrickxiaceae Bacillus smithii {DSM-4216} Oikeobacillus {DSM-23947} Domibacillaceae Falsibacillaceae Mangrovibacillus {R1DC41} Bacillus coahuilensis {Bacillaceae_K} Jeotgalibacillaceae Rossellomoreaceae Pradoshiaceae Peribacillus {DSM-1321} Cytobacillaceae Bacillales_B Bacillales s.s. Bacillus_BS {SA4} Bacillaceae_G Priestia {Bacillaceae_H} Bacillaceae_L Anoxybacillaceae Sutcliffiellaceae Bacillus carboniphilus {JAIVKR01} Aeribacillaceae Bacillaceae Bacillales_C Bacillus solimangrovi {Bacillaceae_N} Schinkiaceae Bacillales_E Lottiidibacillaceae "Massilibacteriaceae" Bacillales_K Sporolactobacillaceae Bacillales_G "Maribacillaceae" Pseudalkalibacillus species-group 2 {HB172195} Fictibacillaceae Bacillales_H Marinococcaceae Salisediminibacteriaceae Anaerobacillaceae "Desertibacillaceae" Alkalihalobacterium {Bacillaceae_F} Bacillaceae_D Bacillales_I Bacillus marinisedimentorum {Bacillaceae_O} DSM‑28697 Aureibacillaceae Bacillales_D Alkalibacillaceae Pontibacillus {BH030062} Halobacillaceae Amphibacillaceae Caryophanales Caryophanaceae Staphylococcales Gemellaceae Abyssicoccaceae Salinicoccaceae Staphylococcaceae other Lactobacillales Listeriaceae other

## See also

- [List of bacteria genera](/source/List_of_bacteria_genera)

- [List of bacterial orders](/source/List_of_bacterial_orders)

## References

1. ^ [***a***](#cite_ref-LPSN_1-0) [***b***](#cite_ref-LPSN_1-1) J.P. Euzéby. ["Bacillales"](https://lpsn.dsmz.de/order/Bacillales). [List of Prokaryotic names with Standing in Nomenclature](/source/List_of_Prokaryotic_names_with_Standing_in_Nomenclature) (LPSN). Retrieved 2018-07-20.

1. **[^](#cite_ref-2)** Harirchi, Sharareh; Sar, Taner; Ramezani, Mohaddaseh; Aliyu, Habibu; Etemadifar, Zahra; Nojoumi, Seyed Ali; Yazdian, Fatemeh; Awasthi, Mukesh Kumar; Taherzadeh, Mohammad J. (December 2022). ["Bacillales: From Taxonomy to Biotechnological and Industrial Perspectives"](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9781867). *Microorganisms*. **10** (12): 2355. [doi](/source/Doi_(identifier)):[10.3390/microorganisms10122355](https://doi.org/10.3390%2Fmicroorganisms10122355). [ISSN](/source/ISSN_(identifier)) [2076-2607](https://search.worldcat.org/issn/2076-2607). [PMC](/source/PMC_(identifier)) [9781867](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9781867). [PMID](/source/PMID_(identifier)) [36557608](https://pubmed.ncbi.nlm.nih.gov/36557608).

1. **[^](#cite_ref-Bergey_3-0)** George M. Garrity; Vos, P.; Garrity, G.; Jones, D.; Krieg, N.R.; Ludwig, W.; Rainey, F.A.; Schleifer, K.-H.; Whitman, W.B. (September 15, 2009). [*The Firmicutes*](https://www.springer.com/life+sciences/book/978-0-387-95041-9). Bergey's Manual of Systematic Bacteriology. Vol. 3 (2nd ed.). New York: Springer. p. 1450. [ISBN](/source/ISBN_(identifier)) [978-0-387-95041-9](https://en.wikipedia.org/wiki/Special:BookSources/978-0-387-95041-9). British Library no. GBA561951.

1. **[^](#cite_ref-4)** Sayers; et al. ["Bacillales"](https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Undef&id=1385&lvl=3&lin=f&keep=1&srchmode=1&unlock). [National Center for Biotechnology Information](/source/National_Center_for_Biotechnology_Information) (NCBI) taxonomy database. Retrieved 2018-07-20.

1. **[^](#cite_ref-5)** ["The LTP"](https://imedea.uib-csic.es/mmg/ltp/#LTP). Retrieved 10 December 2024.

1. **[^](#cite_ref-6)** ["LTP_all tree in newick format"](https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_all_10_2024.ntree). Retrieved 10 December 2024.

1. **[^](#cite_ref-7)** ["LTP_10_2024 Release Notes"](https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_10_2024_release_notes.pdf) (PDF). Retrieved 10 December 2024.

1. **[^](#cite_ref-about_8-0)** ["GTDB release 09-RS220"](https://gtdb.ecogenomic.org/about#4%7C). *[Genome Taxonomy Database](/source/Genome_Taxonomy_Database)*. Retrieved 10 May 2024.

1. **[^](#cite_ref-tree_9-0)** ["bac120_r220.sp_labels"](https://data.gtdb.ecogenomic.org/releases/release220/220.0/auxillary_files/bac120_r220.sp_labels.tree). *[Genome Taxonomy Database](/source/Genome_Taxonomy_Database)*. Retrieved 10 May 2024.

1. **[^](#cite_ref-taxon_history_10-0)** ["Taxon History"](https://gtdb.ecogenomic.org/taxon_history/). *[Genome Taxonomy Database](/source/Genome_Taxonomy_Database)*. Retrieved 10 May 2024.

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v t e Prokaryotes: Bacteria classification Domain Archaea Bacteria Eukaryota (major groups Metamonada Discoba Diaphoretickes Hacrobia Cryptista Rhizaria Alveolata Stramenopiles Plants Amorphea Amoebozoa Opisthokonta Animalia Fungi Mesomycetozoea) Candidate Phyla Radiation "Elulimicrobiota" "Elulimicrobia" Minisyncoccota "Absconditibacteria" "Andersenbacteria" "Berkelbacteria" "Baikalibacteria" "Dojkabacteriia" "Doudnabacteria" "Gracilibacteriia" "Howlettbacteria" "Katanibacteriia" "Kazanbacteria" "Microgenomatia" Minisyncoccia "Patescibacteriia" "Saccharimonadia" "Torokbacteria" "Wirthbacteria" Thermotogati "Bipolaricaulota" "Acetithermia" "Bipolaricaulia" Deinococcota "Deinococcia" "Synergistetes" Atribacterota Atribacteria "Phoenicimicrobiia" Synergistota Synergistia "Thermocalda" Caldisericota Caldisericia Coprothermobacterota Coprothermobacteria Dictyoglomerota Dictyoglomeria "Lithacetigenota" "Lithacetigenia" Thermodesulfobiota "Thermodesulfobiia" Thermotogota "Thermotogia" "Zhurongbacterota" Bacillati Actinomycetota Acidimicrobiia Actinomycetes "Aquicultoria" Coriobacteriia "Geothermincolia" "Humimicrobiia" Nitriliruptoria Rubrobacteria Thermoleophilia Armatimonadota "Abditibacteriia" Armatimonadia Chthonomonadia "Fervidibacteria" Fimbriimonadia "Heboniibacteriia" "Zipacnadia" Chloroflexota "Caldilineia" Chloroflexia Dehalococcoidia "Dormibacteria" Ktedonobacteria "Limnocylindria" "Martimicrobiia" "Poriflexia" "Spiritibacteria" "Tarhunnaeia" "Uliximicrobiia" "Sysuimicrobiota" "Sysuimicrobiia" Vulcanimicrobiota Vulcanimicrobiia "Xenobiia" "Cyanoprokaryota" Cyanobacteriota Cyanophyceae "Sericytochromatia" Vampirovibrionophyceae "Margulisiibacteriota" "Marinamargulisbacteria" "Riflemargulisbacteria" "Saganbacteria" "Termititenacia" "Firmicutes" Bacillota "Bacillia" Bacillota D "Dethiobacteria" Natranaerobiia "Proteinivoracia" Bacillota E "Fermentithermobacillia" Sulfobacillia Symbiobacteriia Thermaerobacteria Bacillota G "Hydrogenisporia" Limnochordia "Clostridiota" "Clostridiia" "Thermoanaerobacteria" Thermosediminibacteria "Desulfotomaculota" "Carboxydocellia" "Carboxydothermia" "Dehalobacteriia" Desulfitobacteriia Desulfotomaculia "Moorellia" Peptococcia Syntrophomonadia "Thermacetogeniia" Thermincolia "Halanaerobiaeota" "Halanaerobiia" "Selenobacteria" "Selenomonadia" Pseudomonadati "Sphingobacteria" Bacteroidota Bacteroidia Chlorobiia "Ignavibacteriia" "Kapaibacteria" "Kryptoniia" Rhodothermia Calditrichota Calditrichia "Cloacimonadota" "Cloacimonadia" "Cosmopoliota" "Cosmopolitia" "Delongiibacteriota" "Edwardsiibacteriota" "Effluvivivacota" "Eiseniibacteriota" "Electryoneota" "Electryoneia" "Tariuqbacteria" "Fermentibacterota" "Fermentibacteria" Fibrobacterota Chitinivibrionia Fibrobacteria "Raymondbacteriia" Gemmatimonadota Gemmatimonadia "Glassbacteria" "Hydrothermota" "Hydrothermia" "Stahlbacteria" "Krumholzibacteriota" "Krumholzibacteriia" "Heilongiota" "Heilongiia" "Latescibacterota" "Handelsmanbacteria" "Latescibacteria" "Marinisomatota" "Marinisomatia" "Zixiibacteriota" "Zhuqueibacterota" "Zhuqueibacteria" "Planctobacteria" "Abyssobacterota" "Aerophobota" "Aerophobia" "Auribacterota" "Ancaeobacteria" "Auribacteria" "Erginobacteria" "Tritonobacteria" Chlamydiota Chlamydiia "Desantisiibacteriota" Elusimicrobiota Elusimicrobiia Endomicrobiia Fidelibacterota Fidelibacteria "Firestoneibacteriota" "Goldiibacteriota" "Heilongiota" "Hinthialibacterota" "Hinthialibacteria" "Hydrogenedentota" "Hydrogenedentia" "Omnitrophota" "Omnitrophia" "Velamenicoccia" Planctomycetota "Brocadiia" "Phycisphaeria" Planctomycetia "Uabimicrobiia" "Poribacteriota" "Ratteibacteriota" "Saltatorellota" "Saltatorellae" "Sumerlaeota" "Sumerlaeia" "Tangaroaeota" "Tianyaibacteriota" Verrucomicrobiota Kiritimatiellia Lentisphaeria Verrucomicrobiia "Proteobacteria" Acidobacteriota "Acidobacteriia" "Aminicenantia" Blastocatellia "Fischerbacteria" "Guanabaribacteriia" "Holophagia" "Polarisedimenticolia" Thermoanaerobaculia Vicinamibacteria "Acidulidesulfobacteriota" "Acidulodesulfobacteriia" Aquificota Aquificia Bdellovibrionota Bacteriovoracia Bdellovibrionia "Binatota" "Binatia" "Calescibacteriota" "Calescibacteriia" Campylobacterota "Campylobacteria" Desulfurellia "Canglongiota" "Canglongiia" Chrysiogenota Chrysiogenia "Dadaibacteriota" "Dadabacteria" Deferribacterota "Deferribacteria" "Deferrimicrobiota" "Deferrimicrobiia" "Deferrisomatota" Deferrisomatia "Leptospirillaeota" "Leptospirillia" "Lernaellota" "Lernaellia" "Methylomirabilota" "Methylomirabilia" "Moduliflexota" "Moduliflexia" Myxococcota "Bradymonadia" "Kuafubacteriia" Myxococcia Polyangiia "Nitrosediminicolota" Nitrospinota Nitrospinia Nitrospirota Nitrospiria Thermodesulfovibrionia "Oligoflexaeota" Oligoflexia Pseudomonadota "Anaeropigmentatia" "Caulobacteria" Magnetococcia "Mariprofundia" "Pseudomonadia" "Schekmaniibacteriota" Desulfobacterota G Syntrophorhabdia "Tectimicrobiota" "Entotheonellia" Thermosulfidibacterota Thermosulfidibacteria Thermodesulfobacteriota "Anaeroferrophilia" Desulfarculia "Desulfatiglandia" Desulfobaccia Desulfobacteria Desulfobulbia "Desulfofervidia" Desulfomonilia Desulfovibrionia Desulfuromonadia Dissulfuribacteria Syntrophobacteria Syntrophia "Thermodesulfobacteriia" "Zymogenia" Incertae sedis "Babelota" "Babeliae" Fusobacteriota Fusobacteriia "Lindowiibacteriota" "Macinerneyibacteriota" "Macinerneyibacteriia" "Muiribacteriota" "Muiribacteriia" "Ozemibacteria" "Wallbacteriia" Spirochaetota "Brevinematia" "Brachyspirae" "Exilispiria" "Leptospiria" Spirochaetia Incertae sedis "Qinglongiota" "Qinglongiia" "Salinosulfoleibacteria" "Teskebacteria" GTDB 10-RS226; LTP_10_2024

Taxon identifiers Bacillales Wikidata: Q149088 Wikispecies: Bacillales CoL: 8ZXVV EoL: 7777 EPPO: 1BACIO GBIF: 576 iNaturalist: 152313 IRMNG: 12172 ITIS: 956194 LPSN: bacillales NCBI: 1385 NZOR: f1796b5b-2d8d-41d5-adf6-2cb5da6c6690 Open Tree of Life: 1068893 SeqCode Registry: 34415 WoRMS: 393160

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