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Pseudonocardiaceae
Pseudonocardia pini on agar plate
Scientific classification
Domain:	Bacteria
Kingdom:	Bacillati
Phylum:	Actinomycetota
Class:	Actinomycetes
Order:	Pseudonocardiales Labeda and Goodfellow 2015
Family:	Pseudonocardiaceae Embley et al. 1989
Genera
See text
Synonyms
Pseudonocardiales: Actinopolysporineae Zhi et al. 2009 Actinopolysporales Goodfellow and Trujillo 2015 Pseudonocardineae Stackebrandt et al. 1997 Pseudonocardiaceae: Actinopolysporaceae Zhi et al. 2009 Actinosynnemataceae Labeda and Kroppenstedt 2000 Mzabimycetaceae Saker et al. 2015

The Pseudonocardiaceae are a family of bacteria in the order Actinomycetales and the only member of the suborder Pseudonocardineae.

Genomics

The species within the family Pseudonocardiaceae form a distinct clade in phylogenetic trees based on concatenated protein sequences. Additionally, Nakamurella multipartite, currently part of the order Frankiales, also formed a clade with the Pseudonocardiaceae species in 100% of the bootstrap replications of the phylogenetic trees. A conserved signature indel has been identified which is found in N. multipartite and all but one of the Pseudonocardiaceae species. This one-amino-acid insertion in UMP kinase serves to both provide a molecular marker for nearly all of the Pseudonocardiaceae and suggests N. multipartite is closely related to this group. Some evidence also suggests the orders Pseudonocardiales and Corynebacteriales are closely related. Several conserved signature indels have been identified which are found in both Pseudonocardiales and Corynebacteriales, including a three-amino-acid insertion in a conserved region of UDP-galactopyranose mutase. This insertion is also present in N. multipartite and Geodermatophilus obscurus, another member of Frankiales. Additionally, five conserved signature proteins have been identified which are found only in the orders Pseudonocardiales and Corynebacteriales. Homologs of the proteins are generally found in N. multipartite and G. obscurus, providing additional evidence of these two species being closely related to the orders Pseudonocardiales and Corynebacteriales.

Phylogeny

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

Whole-genome analysis	16S rRNA based LTP_10_2024	120 marker proteins based GTDB 10-RS226
Pseudonocardiales Actinomycetospora Pseudonocardia Sciscionella Actinoalloteichus Actinopolyspora Saccharopolyspora Kutzneria Allokutzneria Streptoalloteichus Lentzea Goodfellowiella Umezawaea Saccharothrix Actinosynnema Kibdelosporangium Actinophytocola Actinokineospora Thermocrispum Haloechinothrix Amycolatopsis Prauserella Saccharomonospora	Actinopolysporales Halopolyspora Lai et al. 2014 Bounagaea Meklat et al. 2015 Actinopolyspora Gochnauer et al. 1975 Actinopolysporaceae Jiangellales Actinosynnemataceae Longimycelium Xia et al. 2013 Streptoalloteichus Tomita et al. 1978 ex Tomita et al. 1987 Actinophytocola Indananda et al. 2010 Labedaea Lee 2012 Kibdelosporangium Shearer et al. 1986 [incl. Actinocrispum Hatano et al. 2016] Thermotunica Wu et al. 2014 Gandjariella Ningsih et al. 2019 Goodfellowiella Labeda et al. 2008 Actinoalloteichus Tamura et al. 2000 Crossiella Labeda 2001 Allokutzneria Labeda and Kroppenstedt 2008 Kutzneria Stackebrandt et al. 1994 Solihabitans Jin et al. 2022 Umezawaea Labeda and Kroppenstedt 2007 Actinokineospora Hasegawa 1988 Actinorectispora Quadri et al. 2016 Lentzea tibetensis Saccharothrix Labeda et al. 1984 Actinosynnema Hasegawa, Lechevalier & Lechevalier 1978 Lentzea Yassin et al. 1995 Herbihabitans Zhang et al. 2016 Haloactinomyces Lai et al. 2017 Salinifilum Moshtaghi Nikou et al. 2017 Halosaccharopolyspora Teo, Tan & Li 2021 Allosaccharopolyspora Teo, Tan & Li 2021 Saccharopolyspora cavernae Saccharopolyspora Lacey and Goodfellow 1975 Haloechinothrix Tang et al. 2010 Sciscionella Tian et al. 2009 Thermocrispum Korn-Wendisch et al. 1995 Tamaricihabitans Qin et al. 2015 Yuhushiella Mao et al. 2011 Qaidamihabitans Tian et al. 2022 Prauserella shujinwangii Prauserella Kim and Goodfellow 1999 Saccharomonospora Nonomura and Ohara 1971 Amycolatopsis Lechevalier et al. 1986 Pseudonocardiaceae Actinomycetospora Jiang et al. 2008 Pseudonocardia Henssen 1957 Mycobacteriales	Pseudonocardiales Actinomycetospora Pseudonocardia Sciscionella Halosaccharopolyspora Halopolyspora Actinopolyspora Saccharopolyspora Gandjariella Longimycelium Streptoalloteichus Actinoalloteichus Crossiella Allokutzneria Kutzneria Goodfellowiella Solihabitans Umezawaea Actinosynnema [incl. Saccharothrix] Lentzea Actinocrispum Kibdelosporangium Herbihabitans Labedaea Actinophytocola Actinokineospora Tamaricihabitans Haloechinothrix Haloechinothrix_A Thermocrispum Yuhushiella Qaidamihabitans Saccharomonospora_A Prauserella_A Prauserella muralis Prauserella Saccharomonospora Amycolatopsis Pseudonocardiaceae

Genera incertae sedis:

• "Prauseria" Zhou, Whitehead & Goodfellow 1997
• "Saccharothrixopsis" Wang, Qian & Liu 1999a

See also

• List of bacterial orders
• List of bacteria genera