Mycobacteriales

The Mycobacteriales are an order of bacteria.^[1] The current description is genome-based, per Gupta 2019 emendation. Most members produce mycolic acids.^[3]

Mycobacteriales
Corynebacterium ulcerans colonies on a blood agar plate
Scientific classification
Domain:	Bacteria
Kingdom:	Bacillati
Phylum:	Actinomycetota
Class:	Actinomycetia
Order:	Mycobacteriales Janke 1924 (Approved Lists 1980)[1]
Type genus
Mycobacterium Lehmann and Neumann 1896 (Approved Lists 1980)
Families[2]
Corynebacteriaceae Dietziaceae Gordoniaceae Hoyosellaceae Lawsonellaceae Mycobacteriaceae Nocardiaceae Segniliparaceae Tomitellaceae Tsukamurellaceae
Synonyms
Corynebacteriales Goodfellow and Jones 2015 Corynebacteriineae corrig. Stackebrandt et al. 1997 "Mycobacteriineae" Val-Calvo & Vazquez-Boland 2023

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN).^[2]

Whole-genome based phylogeny[4]	16S rRNA based LTP_08_2023[5][6][7]	120 marker proteins based GTDB 08-RS214[8][9][10]
Cryptosporangiales Cryptosporangiaceae Glycomycetales Glycomycetaceae (incl. ?Phytomonosporaceae) Micromonosporales Actinocatenisporaceae Micromonosporaceae (incl. Actinoplanetaceae) Jatrophihabitantales Jatrophihabitantaceae Geodermatophilales Antricoccaceae Geodermatophilaceae Nakamurellales Nakamurellaceae Pseudonocardiales Pseudonocardiaceae [incl. Actinopolysporaceae] Mycobacteriales Lawsonellaceae Dietziaceae Corynebacteriaceae Tsukamurellaceae Gordoniaceae Hoyosellaceae Tomitellaceae Rhodococcus Nocardiaceae Segniliparaceae Mycobacteriaceae	Streptosporangiales Propionibacteriales Jiangellales Micromonosporales Actinocatenisporaceae Phytomonosporaceae Glycomycetaceae Micromonosporaceae (incl. Actinoplanetaceae) Pseudonocardiales Pseudonocardiaceae (incl. Actinopolysporaceae) Mycobacteriales Segniliparaceae Rhodococcus species-group 2 Rhodococcus Gordoniaceae Nocardiaceae Dietziaceae Lawsonellaceae Corynebacteriaceae Tsukamurellaceae Tomitellaceae Hoyosellaceae Mycobacteriaceae	Mycobacteriales Frankineae Frankiaceae Jatrophihabitantaceae Antricoccaceae Geodermatophilaceae Micromonosporineae Cryptosporangiaceae "Fodinicolaceae" Micromonosporaceae (incl. Actinocatenisporaceae; Actinoplanetaceae; Glycomycetaceae; Phytomonosporaceae) Corynebacteriineae Nakamurellaceae Pseudonocardiaceae (incl. Actinopolysporaceae) Mycobacteriaceae (incl. Corynebacteriaceae; Dietziaceae; Gordoniaceae; Hoyosellaceae; Lawsonellaceae; Nocardiaceae; Segniliparaceae; Tomitellaceae; Tsukamurellaceae)

Terminology

Mycolata has been used as a non-taxonomic term for mycolic acid-containing Actinobacteria. Mycobacteriales includes all such species, but it also includes some without mycolic acid, making these two terms imperfect, paraphyletic, aliases.^[11]

See also

• Bacterial taxonomy
• List of bacterial orders
• List of bacteria genera