Actinomycetia

Actinomycetia
Scanning electron micrograph of Actinomyces israelii.
Scientific classification
Domain:	Bacteria
Phylum:	Actinomycetota
Class:	Actinomycetia (Stackebrandt et al. 1997) Salam et al. 2020[1]
Type genus
Actinomyces Harz 1877 (Approved Lists 1980)
Orders
See text
Synonyms
Actinobacteria Stackebrandt et al. 1997 Actinomycetes Krassilnikov 1949 (Approved Lists 1980) Arabobacteria Cavalier-Smith 2002 Arthrobacteria Cavalier-Smith 2002 Mycobacteria Pribram 1929 Streptomycetes Cavalier-Smith 2002

The Actinomycetia are a class of bacteria.^[2]

Taxonomy

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)^[3] and National Center for Biotechnology Information (NCBI).^[1]

• Acidothermales Sen et al. 2014
• Actinomycetales Buchanan 1917 (Approved Lists 1980)
• ?Bifidobacteriales Stackebrandt et al. 1997
• Catenulisporales Donadio et al. 2015
• Cryptosporangiales Nouioui et al. 2018
• Frankiales Sen et al. 2014
• Geodermatophilales Sen et al. 2014
• ?Glycomycetales Labeda 2015
• Jatrophihabitantales Salam et al. 2020
• Jiangellales Tang et al. 2015
• Kineosporiales Kämpfer 2015
• ?Micrococcales Prévot 1940 (Approved Lists 1980)
• Micromonosporales Genilloud 2015
• Motilibacterales Salam et al. 2020
• Mycobacteriales Janke 1924 (Approved Lists 1980)
• Nakamurellales Sen et al. 2014
• Propionibacteriales (Rainey et al. 1997) Patrick and McDowell 2015
• Pseudonocardiales Labeda and Goodfellow 2015
• Sporichthyales Nouioui et al. 2018
• Streptomycetales Cavalier-Smith 2002
• Streptosporangiales Goodfellow 2015

Phylogeny

Whole-genome based phylogeny[4]	16S rRNA based LTP_08_2023[5][6][7]	120 marker proteins based GTDB 08-RS214[8][9][10]
Nitriliruptoria Actinomycetia Frankiales Jiangellales Propionibacteriales Streptosporangiales Acidothermales Sporichthyales Catenulisporales Streptomycetales (incl. Kitasatosporales) Cryptosporangiales Glycomycetales (incl. ?Phytomonosporales) Micromonosporales (incl. Actinocatenisporales, Actinoplanetales) Jatrophihabitantales Geodermatophilales [incl. Antricoccales] Nakamurellales Mycobacteriales (incl. Corynebacteriales) Pseudonocardiales [incl. Actinopolysporales] Microbacteriales Kineosporiales (incl. Dermatophilales) Bifidobacteriales Actinomycetales Cellulomonadales (incl. Beutenbergiales; Bogoriellales; Cellulomonadales; Demequinales; Ruaniales) Micrococcales (incl. Dermabacterales; Brevibacteriales)	Acidimicrobiia Nitriliruptoria Actinomycetia Carbonactinosporaceae Acidothermales Jatrophihabitantales Frankiales Geodermatophilales (incl. Antricoccales) Cryptosporangiales Sporichthyales Nakamurellales Kineosporiales Actinomycetales (incl. Aquipuribacterales; Dermatophilales; Beutenbergiales; Bifidobacteriales; Bogoriellales; Cellulomonadales; Demequinales; Dermabacterales; Ruaniales; Brevibacteriales; Microbacteriales; Micrococcales) Catenulisporales Motilibacterales Streptomycetales (incl. Kitasatosporales) Streptosporangiales Propionibacteriales Jiangellales Micromonosporales (incl. Actinocatenisporales, Actinoplanetales, Glycomycetales, Phytomonosporales) Mycobacteriales (incl. Corynebacteriales) Pseudonocardiales (incl. Actinopolysporales)	Actinomycetia Nitriliruptoridae Actinobacteridae Actinomycetales Kineosporineae (incl. Kineosporiales, Aquipuribacterales; Dermatophilales) Actinomycetineae (incl. Beutenbergiales; Bifidobacteriales; Bogoriellales; Cellulomonadales; Demequinales; Dermabacterales; Ruaniales) Micrococcineae (incl. Brevibacteriales; Microbacteriales; Micrococcales) "Nanopelagicales" Jiangellales Propionibacteriales Motilibacterales Sporichthyales Streptomycetales (incl. Carbonactinosporaceae; Catenulisporales, Kitasatosporales) Streptosporangiales Acidothermales Mycobacteriales Frankineae (incl. Frankiales) Unnamed (incl. Antricoccales; Geodermatophilales; Jatrophihabitantales) Micromonosporineae (incl. Actinocatenisporales; Actinoplanetales; Cryptosporangiales; Glycomycetales; Micromonosporales; Phytomonosporales) Corynebacterineae (incl. Actinopolysporales; Corynebacteriales; Nakamurellales; Pseudonocardiales)

See also

• List of bacteria genera
• List of bacterial orders

References

1. Sayers; et al. "Actinomycetia". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2021-03-20.
2. Stackebrandt E, Rainey FA, Ward-Rainey NL (1997). "Proposal for a new hierarchic classification system, Actinobacteria classis nov". Int. J. Syst. Bacteriol. 47 (2): 479–491. doi:10.1099/00207713-47-2-479.
3. Euzéby JP, Parte AC. "Actinobacteria". List of Prokaryotic names with Standing in Nomenclature(LPSN). Retrieved June 7, 2021.
4. Nouioui I, Carro L, García-López M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Markus Göker M (2018). "Genome-Based Taxonomic Classification of the Phylum Actinobacteria". Front. Microbiol. 9: 2007. doi:10.3389/fmicb.2018.02007. PMC 6113628. PMID 30186281.
5. "The LTP". Retrieved 20 November 2023.
6. "LTP_all tree in newick format". Retrieved 20 November 2023.
7. "LTP_08_2023 Release Notes" (PDF). Retrieved 20 November 2023.
8. "GTDB release 08-RS214". Genome Taxonomy Database. Retrieved 10 May 2023.
9. "bac120_r214.sp_label". Genome Taxonomy Database. Retrieved 10 May 2023.
10. "Taxon History". Genome Taxonomy Database. Retrieved 10 May 2023.