pseudonocardiaceae pseudonocardiaceae the pseudonocardiaceae are a family of bacteria in the order actinomycetales and the only member of the suborder pseudonocardineae. pseudonocardiaceae pseudonocardia pini on agar plate scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: pseudonocardialeslabeda and goodfellow 2015 family: pseudonocardiaceaeembley et al. 1989 genera see text. synonyms pseudonocardiales: actinopolysporales goodfellow and trujillo 2015 pseudonocardiaceae: actinopolysporaceae zhi et al. 2009 actinopolysporineae zhi et al. 2009 actinosynnemataceae labeda and kroppenstedt 2000 mzabimycetaceae saker et al. 2015 pseudonocardineae stackebrandt et al. 1997 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 corynebacterialess. 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. genera pseudonocardiaceae comprises the following genera: actinoalloteichus tamura et al. 2000 actinocrispum hatano et al. 2016 actinokineospora hasegawa 1988 actinomycetospora jiang et al. 2008 actinophytocola indananda et al. 2010 actinopolyspora gochnauer et al. 1975 (approved lists 1980) actinorectispora quadri et al. 2016 actinosynnema hasegawa et al. 1978 (approved lists 1980) allokutzneria labeda and kroppenstedt 2008 allosaccharopolyspora teo et al. 2021 amycolatopsis lechevalier et al. 1986 bounagaea meklat et al. 2015 crossiella labeda 2001 gandjariella ningsih et al. 2019 goodfellowiella labeda et al. 2008 haloactinomyces lai et al. 2017 haloechinothrix tang et al. 2010 halopolyspora lai et al. 2014 halosaccharopolyspora teo et al. 2021 herbihabitans zhang et al. 2016 kibdelosporangium shearer et al. 1986 kutzneria stackebrandt et al. 1994 labedaea lee 2012 lentzea yassin et al. 1995 longimycelium xia et al. 2013 prauserella kim and goodfellow 1999 pseudonocardia henssen 1957 (approved lists 1980) qaidamihabitans tian et al. 2022 saccharomonospora nonomura and ohara 1971 (approved lists 1980) saccharopolyspora lacey and goodfellow 1975 (approved lists 1980) saccharothrix labeda et al. 1984 salinifilum moshtaghi nikou et al. 2017 sciscionella tian et al. 2009 solihabitans jin et al. 2022 streptoalloteichus (ex tomita et al. 1978) tomita et al. 1987 tamaricihabitans qin et al. 2015 thermocrispum korn-wendisch et al. 1995 thermotunica wu et al. 2014 umezawaea labeda and kroppenstedt 2007 phylogeny the currently accepted taxonomy is based on the list of prokaryotic names with standing in nomenclature (lpsn). the phylogeny is based on whole-genome analysis. pseudonocardiales actinomycetospora pseudonocardia sciscionella actinoalloteichus actinopolyspora saccharopolyspora kutzneria allokutzneria streptoalloteichus lentzea goodfellowiella umezawaea saccharothrix actinosynnema kibdelosporangium actinophytocola actinokineospora thermocrispum haloechinothrix amycolatopsis prauserella saccharomonospora outgroup mycobacteriales notes actinocrispum, actinorectispora, bounagaea, crossiella, gandjariella, haloactinomyces, halopolyspora, halosaccharopolyspora, herbihabitans, labedaea, longimycelium, salinifilum, solihabitans, tamaricihabitans, and thermotunica are not included in this phylogenetic tree.