Actinomycetia

Actinomycetia
Scanning electron micrograph of Actinomyces israelii .
Scientific classification
Domain:	Bacteria
Kingdom:	Bacillati
Phylum:	Actinomycetota
Class:	Actinomycetia (Stackebrandt et al. 1997) Salam et al. 2020 [1]
Orders [2]
See text
Synonyms
Actinobacteria Stackebrandt, Rainey & Ward-Rainey 1997 Actinobacteridae Stackebrandt, Rainey & Ward-Rainey 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. ^[3]

Taxonomy

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). ^[2]

• 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_10_2024 [5] [6] [7]	120 marker proteins based GTDB 09-RS220 [8] [9] [10]
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)	Actinomycetia Bifidobacteriales other Propionibacteriales Actinopolysporales Streptosporangiales Micromonosporales (incl. Actinocatenisporales, Actinoplanetales, Glycomycetales, Phytomonosporales) Jiangellales Pseudonocardiaceae~ Pseudonocardiales Mycobacteriales (incl. Corynebacteriales) Cryptosporangiales Sporichthyales Nakamurellales Jatrophihabitantales Geodermatophilales (incl. Antricoccales) Carbonactinosporaceae Acidothermales Frankiales Catenulisporales Motilibacterales Streptomycetales (incl. Kitasatosporales) Kineosporiales (incl. Aquipuribacterales) Microbacteriales Cellulomonadales (incl. Demequinales) Actinomycetales (incl. Beutenbergiales; Bogoriellales; Ruaniales) Dermatophilales (incl. Dermabacterales) Micrococcales (incl. Brevibacteriales)	Actinomycetia "Nanopelagicales" Motilibacterales Jiangellales Propionibacteriales Actinomycetales "Polyseptineae" (incl. Dermatophilales) Kineosporineae (incl. Kineosporiales, Aquipuribacterales) Actinomycetineae (incl. Beutenbergiales; Bifidobacteriales; Bogoriellales; Cellulomonadales; Demequinales; Dermabacterales; Ruaniales) Micrococcineae (incl. Brevibacteriales; Microbacteriales; Micrococcales) Sporichthyales Streptomycetales (incl. Carbonactinosporaceae; Catenulisporales, Kitasatosporales) Streptosporangiales Acidothermales Mycobacteriales Frankineae (incl. Frankiales) Unnamed (incl. Antricoccales; Geodermatophilales) Micromonosporineae (incl. Actinocatenisporales; Actinoplanetales; Cryptosporangiales; Glycomycetales; Micromonosporales; Phytomonosporales) Corynebacterineae (incl. Actinopolysporales; Corynebacteriales; Jatrophihabitantales; Nakamurellales; Pseudonocardiales)

See also

• List of bacteria genera
• List of bacterial orders

References

1. A.C. Parte; et al. "Actinomycetia". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2025-02-28.
2. C.L. Schoch; et al. "Actinomycetes". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2025-02-28.
3. 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 .
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 10 December 2024.
6. "LTP_all tree in newick format" . Retrieved 10 December 2024.
7. "LTP_10_2024 Release Notes" (PDF). Retrieved 10 December 2024.
8. "GTDB release 09-RS220". Genome Taxonomy Database . Retrieved 10 May 2024.
9. "bac120_r220.sp_labels". Genome Taxonomy Database . Retrieved 10 May 2024.
10. "Taxon History". Genome Taxonomy Database . Retrieved 10 May 2024.