Family Micromonosporaceae

Name: Micromonosporaceae Krassilnikov 1938 (Approved Lists 1980)

Category, proposed as: family, fam. nov.

Etymology: Mi.cro.mo.no.spo.ra’ce.ae. N.L. fem. n. Micromonospora, type genus of the family; L. fem. pl. n. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Micromonosporaceae, the Micromonospora family

Pronunciation (Latin), gender: mi-kro-mo-no-spo-RA-ke-a͡e, feminine

Type genus: Micromonospora Ørskov 1923 (Approved Lists 1980)

Effective publication: Krassilnikov NA. Ray fungi & related organisms, Actinomycetales. Akademii Nauk SSSR, Moscow, 1938.

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

• Synonyms:

  • Name	Kind
    Actinocatenisporaceae Salam et al. 2020	heterotypic synonym, validly published under the ICNP
    Phytomonosporaceae Salam et al. 2020	heterotypic synonym, validly published under the ICNP
    Actinoplanetaceae corrig. Couch 1955 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Actinoplanaceae Couch 1955 (Approved Lists 1980)	heterotypic synonym, inaccurate spelling

• Emendations:
  • Koch et al. 1996 Koch C, Kroppenstedt RM, Rainey FA, Stackebrandt E. 16S ribosomal DNA analysis of the genera Micromonospora, Actinoplanes, Catellatospora, Catenuloplanes, Couchioplanes, Dactylosporangium, and Pilimelia and emendation of the family Micromonosporaceae. Int J Syst Bacteriol 1996; 46:765-768. 🇩🇪 Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 46, part 3 of the IJSB. Int J Syst Bacteriol 1996; 46:1191.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 7 genera in the family.
    • 😢 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 usage of the term "coherent taxon" (or equivalent) is cautioned against. See the LPSN phylogeny page for details.
  • Stackebrandt et al. 1997 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. 🇩🇪 Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 47, part 2 of the IJSB. Int J Syst Bacteriol 1997; 47:917-919.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 7 genera in the family.
    • ⊖ Emendation accompanied by the removal of 1 genus from the family.
  • Zhi et al. 2009 Zhi XY, Li WJ, Stackebrandt E. An update of the structure and 16S rRNA gene sequence-based definition of higher ranks of the class Actinobacteria, with the proposal of two new suborders and four new families and emended descriptions of the existing higher taxa. Int J Syst Evol Microbiol 2009; 59:589-608. 🇨🇳 Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 3 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:1259-1261.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 16 genera in the family.
  • Nouioui et al. 2018 Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 29 genera in the family.

• Notes:
  • 🧕 Boone et al. (2001) assigned this family to the suborder Micromonosporineae Stackebrandt et al. 1997. Publication: Garrity GM, Holt JG. The Road Map to the Manual. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, p. 119-166. 🇺🇸
  • 🧕 Koch et al. (1996) assigned this family to the order Actinomycetales Buchanan 1917 (Approved Lists 1980). Publication: Koch C, Kroppenstedt RM, Rainey FA, Stackebrandt E. 16S ribosomal DNA analysis of the genera Micromonospora, Actinoplanes, Catellatospora, Catenuloplanes, Couchioplanes, Dactylosporangium, and Pilimelia and emendation of the family Micromonosporaceae. Int J Syst Bacteriol 1996; 46:765-768. 🇩🇪
  • 🧕 Stackebrandt et al. (1997) assigned this family to the suborder Micromonosporineae 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. 🇩🇪
  • 🧕 Zhi et al. (2009) assigned this family to the suborder Micromonosporineae Stackebrandt et al. 1997. Publication: Zhi XY, Li WJ, Stackebrandt E. An update of the structure and 16S rRNA gene sequence-based definition of higher ranks of the class Actinobacteria, with the proposal of two new suborders and four new families and emended descriptions of the existing higher taxa. Int J Syst Evol Microbiol 2009; 59:589-608. 🇨🇳
  • 🧒 Krassilnikov and Agre (1964) assigned the genus "Actinobifida" Krassilnikov and Agre 1964 to this family. Publication: Krasilnikov NA. [A NEW GENUS OF ACTINOMYCETES--ACTINOBIFIDA N. GEN. A YELLOW GROUP--ACTINOBIFIDA DICHOTOMICA N. SP]. Mikrobiologiia 1964; 33:935-943.
  • 🚃 The type genus of this family has alternatively been placed in the family Streptomycetaceae Waksman and Henrici 1943 (Approved Lists 1980). Publication: Waksman SA, Henrici AT. The Nomenclature and Classification of the Actinomycetes. J Bacteriol 1943; 46:337-341.
  • 🚃 The type genus of this family has alternatively been placed in the family Streptomycetaceae Waksman and Henrici 1943 (Approved Lists 1980). Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • 🚃 The type genus of this family has alternatively been placed in the family Streptomycetaceae Waksman and Henrici 1943 (Approved Lists 1980). Publication: Waksman SA, Henrici AT. Family III. Streptomycetaceae Waksman and Henrici. In: Breed RS, Murray EGD, Hitchens AP (eds), Bergey's Manual of Determinative Bacteriology, 6th ed., The Williams & Wilkins Co, Baltimore, 1948, p. 929-980.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Micromonosparaceae"; "Micronomosporaceae"; "Microtnonosporaceae"; "Mioromonosporaceae".
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Ara et al. (2008), Xie et al. (2011), Mingma et al. (2016), Tamura et al. (2006), Inahashi et al. (2012). 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: 326; JCM: 245; NBRC: 211; IFO: 117; ATCC: 115; NRRL: 112; VKM: 66; CGMCC: 60; KCTC: 54; NEAU: 38.
  • 🧍 A genome-scale phylogenetic analysis of the genus Micromonospora was conducted by Carro et al. (2018). Publication: Carro L, Nouioui I, Sangal V, Meier-Kolthoff JP, Trujillo ME, Montero-Calasanz MDC, Sahin N, Smith DL, Kim KE, Peluso P, et al. Genome-based classification of micromonosporae with a focus on their biotechnological and ecological potential. Sci Rep 2018; 8:525. 🇪🇸

Subdivision:

Number of child taxa with a validly published and correct name: 34
Number of child taxa with a validly published name, including synonyms: 45
Total number of child taxa: 51

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Actinaurispora Thawai et al. 2010	validly published under the ICNP	synonym
    Actinocatenispora Thawai et al. 2006	validly published under the ICNP	correct name
    Actinoplanes Couch 1950 (Approved Lists 1980)	validly published under the ICNP	correct name
    Actinorhabdospora Mingma et al. 2016	validly published under the ICNP	correct name
    Allocatelliglobosispora Lee and Lee 2011	validly published under the ICNP	correct name
    Allorhizocola Sun et al. 2019	validly published under the ICNP	correct name
    Amorphoplanes Roman et al. 2024	validly published under the ICNP, illegitimate name	synonym
    Amorphosporangium Couch 1963 (Approved Lists 1980)	validly published under the ICNP	synonym
    "Ampullaria" Couch 1963	not validly published	synonym
    Ampullariella Couch 1964 (Approved Lists 1980)	validly published under the ICNP	synonym
    Asanoa Lee and Hah 2002	validly published under the ICNP	correct name
    Catellatospora Asano and Kawamoto 1986	validly published under the ICNP	correct name
    Catelliglobosispora Ara et al. 2008	validly published under the ICNP	correct name
    Catenuloplanes Yokota et al. 1993	validly published under the ICNP	correct name
    Couchioplanes Tamura et al. 1994	validly published under the ICNP	correct name
    Dactylosporangium Thiemann et al. 1967 (Approved Lists 1980)	validly published under the ICNP	correct name
    Hamadaea Ara et al. 2008	validly published under the ICNP	correct name
    Jidongwangia Han et al. 2023	validly published under the ICNP	correct name
    Jishengella Xie et al. 2011	validly published under the ICNP	synonym
    Krasilnikovia Ara and Kudo 2007	validly published under the ICNP	correct name
    Longispora Matsumoto et al. 2003	validly published under the ICNP	correct name
    Luedemannella Ara and Kudo 2007	validly published under the ICNP	correct name
    Mangrovihabitans Liu et al. 2017	validly published under the ICNP	correct name
    Melissospora Tellatin et al. 2025	validly published under the ICNP	correct name
    Micromonospora Ørskov 1923 (Approved Lists 1980)	validly published under the ICNP	correct name
    Natronosporangium Sorokin et al. 2025	validly published under the ICNP	correct name
    Nucisporomicrobium Han et al. 2022	validly published under the ICNP	correct name
    Paractinoplanes Roman et al. 2024	validly published under the ICNP	synonym
    Phytohabitans Inahashi et al. 2010	validly published under the ICNP	correct name
    Phytomonospora Li et al. 2011	validly published under the ICNP	correct name
    Pilimelia Kane 1966 (Approved Lists 1980)	validly published under the ICNP	correct name
    Planopolyspora Petrolini et al. 1993	validly published under the ICNP	synonym
    Planosporangium Wiese et al. 2008	validly published under the ICNP	correct name
    Plantactinospora Qin et al. 2009	validly published under the ICNP	correct name
    Polymorphospora Tamura et al. 2006	validly published under the ICNP	correct name
    Pseudosporangium Ara et al. 2008	validly published under the ICNP	correct name
    Rhizocola Matsumoto et al. 2014	validly published under the ICNP	correct name
    Rhizomonospora Yoon and Tamura 2025	validly published under the ICNP	correct name
    Rugosimonospora Monciardini et al. 2009	validly published under the ICNP	correct name
    Salinispora Maldonado et al. 2005	validly published under the ICNP	correct name
    "Salinospora" Mincer et al. 2002	not validly published	preferred name
    "Solwaraspora" Magarvey et al. 2004	not validly published	preferred name
    Spirilliplanes Tamura et al. 1997	validly published under the ICNP	correct name
    [Streptothrix]	preliminary entry that lacks crucial information
    Symbioplanes Roman et al. 2024	validly published under the ICNP	synonym
    Verrucosispora Rheims et al. 1998	validly published under the ICNP	synonym
    Virgisporangium corrig. Tamura et al. 2001	validly published under the ICNP	correct name
    Virgosporangium Tamura et al. 2001	inaccurate spelling	misspelling
    "Wangella" Jia et al. 2013	not validly published	synonym
    Winogradskya Roman et al. 2024	validly published under the ICNP	synonym
    Xiangella Wang et al. 2013	validly published under the ICNP	synonym

Parent taxon: Micromonosporales Genilloud 2015

Assigned by: Genilloud O. Order XI Micromonosporales ord. nov. In: Goodfellow M, Kämpfer P, H.-J. B, Trujillo ME, K.-I. S, Ludwig W, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 5 (The Actinobacteria), part B, Springer, New York, 2012, p. 1035. 🇬🇧

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Record number: 885