Name: Pseudonocardia Henssen 1957 (Approved Lists 1980)

Category: Genus

Proposed as: gen. nov.

Etymology: Pseu.do.no.car’di.a. Gr. masc./fem. adj. pseudês, false; N.L. fem. n. Nocardia, a bacterial genus name; N.L. fem. n. Pseudonocardia, false Nocardia

Gender, pronunciation: feminine (stem: Pseudonocardi-), pse͡u-do-no-KAR-di-a

Type species: Pseudonocardia thermophila Henssen 1957 (Approved Lists 1980)

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Henssen A. [Morphology and system of thermophilic actinomycetes]. Arch Mikrobiol 1957; 26:373-414.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    Actinobispora Jiang et al. 1991	heterotypic synonym, validly published under the ICNP
    Pseudoamycolata Akimov et al. 1989	heterotypic synonym, validly published under the ICNP
    Amycolata Lechevalier et al. 1986	heterotypic synonym, validly published under the ICNP

• Emendations:
  • Henssen and Schaefer 1971 Henssen A, Schäfer D. Emended description of the genus Pseudonocardia Henssen and description of a new species Pseudonocardia spinosa Schäfer. International Journal of Systematic Bacteriology 1971; 21:29-34.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 1 new species in the genus.
    • 🧍 As of 2020-09-22 this emendation was not yet included in an IJSEM List of Changes in Taxonomic Opinion.
  • Warwick et al. 1994 Warwick S, Bowen T, McVeigh H, Embley TM. A phylogenetic analysis of the family Pseudonocardiaceae and the genera Actinokineospora and Saccharothrix with 16S rRNA sequences and a proposal to combine the genera Amycolata and Pseudonocardia in an emended genus Pseudonocardia. Int J Syst Bacteriol 1994; 44:293-299. 🇬🇧 Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 44, part 2 of the IJSB. Int J Syst Bacteriol 1994; 44:596.
    Notes:
    • 📧 The e-mail address of the corresponding author given in the associated publication is not functional any more.
    • ⊕ Emendation accompanied by the proposal of 6 new species in the genus.
  • Reichert et al. 1998 Reichert K, Lipski A, Pradella S, Stackebrandt E, Altendorf K. Pseudonocardia asaccharolytica sp. nov. and Pseudonocardia sulfidoxydans sp. nov., two new dimethyl disulfide-degrading actinomycetes and emended description of the genus Pseudonocardia. Int J Syst Bacteriol 1998; 48:441-449. 🇩🇪 Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 48, part 2 of the IJSB. Int J Syst Bacteriol 1998; 48:633-634.
    Notes:
    • 📧 The e-mail address of the corresponding author given in the associated publication is not functional any more.
    • ⊕ Emendation accompanied by the proposal of 2 new species in the genus.
    • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details.
  • Huang et al. 2002 Huang Y, Wang L, Lu Z, Hong L, Liu Z, Tan GY, Goodfellow M. Proposal to combine the genera Actinobispora and Pseudonocardia in an emended genus Pseudonocardia, and description of Pseudonocardia zijingensis sp. nov.. Int J Syst Evol Microbiol 2002; 52:977-982. 🇨🇳 Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 3 of the IJSEM. Int J Syst Evol Microbiol 2002; 52:1077-1079.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 5 new species in the genus.
    • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. The phrase "validly described" is misleading. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details.
  • Park et al. 2008 Park SW, Park ST, Lee JE, Kim YM. Pseudonocardia carboxydivorans sp. nov., a carbon monoxide-oxidizing actinomycete, and an emended description of the genus Pseudonocardia. Int J Syst Evol Microbiol 2008; 58:2475-2478. 🇰🇷 Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 58, part 11 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:205-206.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 1 new species in the genus.

• Notes:
  • 🥇 Nomenclatural type of the family Pseudonocardiaceae Embley et al. 1989. Publication: Embley MT, Smida J, Stackebrandt E. The phylogeny of mycolate-less wall chemotype IV Actinomycetes and description of Pseudonocardiaceae fam. nov. Syst. Appl. Microbiol. 1988; 11:44-52. 🇬🇧
  • 🥇 Nomenclatural type of the order Pseudonocardiales Labeda and Goodfellow 2015. Publication: Labeda DP, Goodfellow M. Order XIII. Pseudonocardiales ord. nov. In: Goodfellow M, Kämpfer P, H.-J. B, Trujillo ME, Suzuki K, Ludwig W, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology vol. 5, 2nd edn., Springer, New York, 2012, p. 1301. 🇬🇧
  • 🥇 Nomenclatural type of the suborder Pseudonocardineae Stackebrandt et al. 1997. Publication: Stackebrandt E, Rainey FA, Ward-Rainey NL. Proposal for a new hierarchic classification system, Actinobacteria classis nov. Int. J. Syst. Bacteriol. 1997; 47:479-491. 🇩🇪
  • 🥇 Nomenclatural type of the suborder Pseudonocardiineae corrig. Stackebrandt et al. 1997. Publication: Stackebrandt E, Rainey FA, Ward-Rainey NL. Proposal for a new hierarchic classification system, Actinobacteria classis nov. Int. J. Syst. Bacteriol. 1997; 47:479-491. 🇩🇪
  • 🧕 Goodfellow and Williams (1983) assigned this genus to the uncategorized "Micropolysporas" Goodfellow and Williams 1983. Publication: Goodfellow M, Williams ST. Ecology of actinomycetes. Annu Rev Microbiol 1983; 37:189-216.
  • 🧕 Goodfellow et al. (2012) assigned this genus to the order Pseudonocardiales Labeda and Goodfellow 2015. Publication: Labeda DP, Goodfellow M. Order XIII. Pseudonocardiales ord. nov. In: Goodfellow M, Kämpfer P, H.-J. B, Trujillo ME, Suzuki K, Ludwig W, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology vol. 5, 2nd edn., Springer, New York, 2012, p. 1301. 🇬🇧
  • 🧕 Stackebrandt et al. (1997) assigned this genus to the suborder Pseudonocardiineae corrig. Stackebrandt et al. 1997. Publication: Stackebrandt E, Rainey FA, Ward-Rainey NL. Proposal for a new hierarchic classification system, Actinobacteria classis nov. Int. J. Syst. Bacteriol. 1997; 47:479-491. 🇩🇪
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Pseaudonocardia"; "Pseirdonocardia"; "Psendonocardia"; "Pseudacardia"; "Pseudollocardia"; "Pseudonocadia"; "Pseudonocanlia"; "Pseudonocar"; "Pseudonocardian"; "Pseudonocardin"; "Pseudonocardirr"; "Pseudonocargia"; "Pseudonocavdia"; "Pseudonodardia"; "Pseudononcardia"; "Pseudotwcardia"; "Psewdonocardia"; "Psrudonocardia".
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Kaewkla and Franco (2011), Evtushenko et al. (1989), Butdee et al. (2025), Tian et al. (2013), Kaempfer et al. (2006). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 62; JCM: 48; NBRC: 25; CCTCC: 17; NRRL: 13; IFO: 13; KCTC: 13; ATCC: 11; CGMCC: 11; VKM: 10.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🧍 Pittman et al. (1991) suggested the abbreviation "PSNC" for this genus name but this does not appear to be of practical relevance any longer. Publication: Pittman KF, Walczak CA, Lock CM. Codes and abbreviations for approved of effectively published names of genera of bacteria published from January 1980 to December 1990. Int J Syst Bacteriol 1991; 41:571-579.

Subdivision:

Number of child taxa with a validly published and correct name: 69
Number of child taxa with a validly published name, including synonyms: 72
Total number of child taxa: 80

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Pseudonocardia abyssalis Parra et al. 2021	validly published under the ICNP	correct name
    Pseudonocardia acaciae Duangmal et al. 2009	validly published under the ICNP	correct name
    Pseudonocardia acidicola Klaysubun et al. 2020	validly published under the ICNP	correct name
    Pseudonocardia adelaidensis Kaewkla and Franco 2010	validly published under the ICNP	correct name
    Pseudonocardia ailaonensis Qin et al. 2008	validly published under the ICNP	correct name
    Pseudonocardia alaniniphila (Xu et al. 1999) Huang et al. 2002	validly published under the ICNP	correct name
    Pseudonocardia alni (Evtushenko et al. 1989) Warwick et al. 1994	validly published under the ICNP	correct name
    Pseudonocardia ammonioxydans Liu et al. 2006	validly published under the ICNP	correct name
    Pseudonocardia antarctica Prabahar et al. 2004	validly published under the ICNP	synonym
    Pseudonocardia antimicrobica Zhao et al. 2021	validly published under the ICNP	correct name
    Pseudonocardia antitumoralis Tian et al. 2013	validly published under the ICNP	correct name
    Pseudonocardia artemisiae Zhao et al. 2011	validly published under the ICNP	correct name
    Pseudonocardia asaccharolytica Reichert et al. 1998	validly published under the ICNP	correct name
    Pseudonocardia aurantiaca (Xu et al. 1999) Huang et al. 2002	validly published under the ICNP	correct name
    Pseudonocardia autotrophica (Takamiya and Tubaki 1956) Warwick et al. 1994	validly published under the ICNP	correct name
    Pseudonocardia azurea Ōmura et al. 1983	validly published under the ICNP	synonym
    Pseudonocardia babensis Sakiyama et al. 2010	validly published under the ICNP	correct name
    Pseudonocardia bannaensis Zhao et al. 2012	inaccurate spelling	misspelling
    Pseudonocardia bannensis corrig. Zhao et al. 2012	validly published under the ICNP	correct name
    Pseudonocardia benzenivorans Kämpfer and Kroppenstedt 2004	validly published under the ICNP	correct name
    Pseudonocardia broussonetiae Mo et al. 2021	validly published under the ICNP	correct name
    Pseudonocardia carboxydivorans Park et al. 2008	validly published under the ICNP	synonym
    Pseudonocardia charpentierae Nouioui et al. 2025	validly published under the ICNP	correct name
    Pseudonocardia chloroethenivorans Lee et al. 2004	validly published under the ICNP	correct name
    Pseudonocardia compacta Henssen et al. 1983	validly published under the ICNP	correct name
    Pseudonocardia cypriaca Sahin et al. 2014	validly published under the ICNP	correct name
    "Pseudonocardia cytotoxica" Dhaneesha et al. 2021	not validly published	preferred name
    Pseudonocardia dioxanivorans Mahendra and Alvarez-Cohen 2005	validly published under the ICNP	correct name
    Pseudonocardia endophytica Chen et al. 2009	validly published under the ICNP	correct name
    Pseudonocardia eucalypti Kaewkla and Franco 2011	validly published under the ICNP	correct name
    "Pseudonocardia fastidiosa" Celmer et al. 1977	not validly published	preferred name
    Pseudonocardia halophobica (Akimov et al. 1989) McVeigh et al. 1994	validly published under the ICNP	correct name
    Pseudonocardia hierapolitana Sahin et al. 2014	validly published under the ICNP	correct name
    Pseudonocardia hispaniensis Cuesta et al. 2013	validly published under the ICNP	correct name
    "Pseudonocardia humida" Zan et al. 2022	not validly published	preferred name
    Pseudonocardia hydrocarbonoxydans (Nolof and Hirsch 1962) Warwick et al. 1994	validly published under the ICNP	correct name
    Pseudonocardia khuvsgulensis Ara et al. 2011	validly published under the ICNP	correct name
    Pseudonocardia kongjuensis Lee et al. 2001	validly published under the ICNP	correct name
    Pseudonocardia kujensis Sahin et al. 2014	validly published under the ICNP	correct name
    Pseudonocardia kunmingensis Zhao et al. 2011	validly published under the ICNP	correct name
    Pseudonocardia lacus Liu et al. 2024	validly published under the ICNP	correct name
    Pseudonocardia lutea Gao et al. 2018	validly published under the ICNP	correct name
    "Pseudonocardia mahuensis" Liu et al. 2026	not validly published	preferred name
    Pseudonocardia mangrovi Chanama et al. 2018	validly published under the ICNP	correct name
    Pseudonocardia mongoliensis Ara et al. 2011	validly published under the ICNP	correct name
    Pseudonocardia nantongensis Xing et al. 2014	validly published under the ICNP	correct name
    Pseudonocardia nematodicida Liu et al. 2015	validly published under the ICNP	correct name
    Pseudonocardia nigra Trujillo et al. 2017	validly published under the ICNP	correct name
    Pseudonocardia nitrificans (ex Schatz et al. 1954) Warwick et al. 1994	validly published under the ICNP	correct name
    Pseudonocardia oceani Parra et al. 2021	validly published under the ICNP	correct name
    Pseudonocardia oroxyli Gu et al. 2006	validly published under the ICNP	correct name
    Pseudonocardia parietis Schäfer et al. 2009	validly published under the ICNP	correct name
    Pseudonocardia petroleophila (Hirsch and Engel 1956) Warwick et al. 1994	validly published under the ICNP	correct name
    "Pseudonocardia phyllosphaerae" Khanoonkon et al. 2025	not validly published	preferred name
    Pseudonocardia pini Kaewkla and Franco 2022	validly published under the ICNP	correct name
    Pseudonocardia profundimaris Zhang et al. 2017	validly published under the ICNP	correct name
    Pseudonocardia rhizophila Li et al. 2012	validly published under the ICNP	correct name
    Pseudonocardia salamisensis Sahin et al. 2014	validly published under the ICNP	correct name
    Pseudonocardia saturnea (Hirsch 1960) Warwick et al. 1994	validly published under the ICNP	correct name
    Pseudonocardia sediminis Zhang et al. 2014	validly published under the ICNP	correct name
    Pseudonocardia seranimata corrig. Zhao et al. 2012	validly published under the ICNP	correct name
    Pseudonocardia serianimatus Zhao et al. 2012	inaccurate spelling	misspelling
    Pseudonocardia sichuanensis Qin et al. 2012	validly published under the ICNP	correct name
    Pseudonocardia soli Thawai 2018	validly published under the ICNP	correct name
    Pseudonocardia spinosa Schäfer 1971 (Approved Lists 1980)	validly published under the ICNP	correct name
    Pseudonocardia spinosispora Lee et al. 2002	validly published under the ICNP	correct name
    Pseudonocardia spirodelae Butdee et al. 2025	validly published under the ICNP	correct name
    Pseudonocardia sulfidoxydans Reichert et al. 1998	validly published under the ICNP	correct name
    Pseudonocardia terrae Muangham and Duangmal 2022	validly published under the ICNP	correct name
    Pseudonocardia tetrahydrofuranoxydans Kämpfer et al. 2006	validly published under the ICNP	correct name
    Pseudonocardia thailandensis Sujarit et al. 2017	validly published under the ICNP	correct name
    Pseudonocardia thermophila Henssen 1957 (Approved Lists 1980)	validly published under the ICNP	correct name
    Pseudonocardia tritici Song et al. 2024	validly published under the ICNP	correct name
    Pseudonocardia tropica Qin et al. 2010	validly published under the ICNP	correct name
    Pseudonocardia xinjiangensis (Xu et al. 1999) Huang et al. 2002	validly published under the ICNP	correct name
    Pseudonocardia xishanensis Zhao et al. 2012	validly published under the ICNP	correct name
    Pseudonocardia yuanmoensis Nie et al. 2012	inaccurate spelling	misspelling
    Pseudonocardia yuanmonensis corrig. Nie et al. 2012	validly published under the ICNP	correct name
    Pseudonocardia yunnanensis (Jiang et al. 1991) Huang et al. 2002	validly published under the ICNP	correct name
    Pseudonocardia zijingensis Huang et al. 2002	validly published under the ICNP	correct name

Parent taxon: Pseudonocardiaceae Embley et al. 1989

Assigned by: Embley MT, Smida J, Stackebrandt E. The phylogeny of mycolate-less wall chemotype IV Actinomycetes and description of Pseudonocardiaceae fam. nov. Syst. Appl. Microbiol. 1988; 11:44-52. 🇬🇧

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Record number: 516421