Name: Isosphaeraceae Kulichevskaya et al. 2016

Category: Family

Proposed as: fam. nov.

Etymology: I.so.sphae.ra’ce.ae. N.L. fem. n. Isosphaera, type genus of the family; L. fem. pl. n. suff. -aceae, ending to denote a family; N.L. fem. pl. n. Isosphaeraceae, the Isosphaera family

Pronunciation (Latin), gender: i-so-sp^ha͡e-RA-ke-a͡e, feminine

Type genus: Isosphaera Giovannoni et al. 1995

Valid publication: Kulichevskaya IS, Ivanova AA, Suzina NE, Rijpstra WIC, Sinninghe Damste JS, Dedysh SN. Paludisphaera borealis gen. nov., sp. nov., a hydrolytic planctomycete from northern wetlands, and proposal of Isosphaeraceae fam. nov. Int J Syst Evol Microbiol 2016; 66:837-844. 🇷🇺

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 2 of the IJSEM. Int J Syst Evol Microbiol 2016; 66:1916-1919.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Notes:
  • 🧕 Kulichevskaya et al. (2016) assigned this family to the class "Planctomycetacia" Garrity and Holt 2001. Publication: Kulichevskaya IS, Ivanova AA, Suzina NE, Rijpstra WIC, Sinninghe Damste JS, Dedysh SN. Paludisphaera borealis gen. nov., sp. nov., a hydrolytic planctomycete from northern wetlands, and proposal of Isosphaeraceae fam. nov. Int J Syst Evol Microbiol 2016; 66:837-844. 🇷🇺
  • 🧕 Kulichevskaya et al. (2016) assigned this family to the order Planctomycetales Schlesner and Stackebrandt 1987. Publication: Kulichevskaya IS, Ivanova AA, Suzina NE, Rijpstra WIC, Sinninghe Damste JS, Dedysh SN. Paludisphaera borealis gen. nov., sp. nov., a hydrolytic planctomycete from northern wetlands, and proposal of Isosphaeraceae fam. nov. Int J Syst Evol Microbiol 2016; 66:837-844. 🇷🇺
  • 🚃 The type genus of this family has alternatively been placed in the family Planctomycetaceae Schlesner and Stackebrandt 1987. Publication: Krieg NR, Ludwig W, Euzéby J, Whitman WB. Phylum XIV. Bacteroidetes phyl. nov. In: Krieg NR, Staley JT, Brown DR, Hedlund BP, Paster BJ, Ward NL, Ludwig W, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 4, Springer, New York, 2010, p. 25. 🇺🇸
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Isophaeraceae"; "Isospheraceae".
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Kulichevskaya et al. (2017). 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: VKM: 7; KCTC: 7; DSM: 6; NBRC: 5; CECT: 3; JMRC: 2; ATCC: 2; LMG: 2; IFO: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 7
Number of child taxa with a validly published name, including synonyms: 7
Total number of child taxa: 7

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Aquisphaera Bondoso et al. 2011	validly published under the ICNP	correct name
    Isosphaera Giovannoni et al. 1995	validly published under the ICNP	correct name
    Kueselia Kündgen et al. 2026	validly published under the ICNP	correct name
    Paludisphaera Kulichevskaya et al. 2016	validly published under the ICNP	correct name
    Singulisphaera Kulichevskaya et al. 2008	validly published under the ICNP	correct name
    Tautonia Kovaleva et al. 2019	validly published under the ICNP	correct name
    Tundrisphaera Kulichevskaya et al. 2017	validly published under the ICNP	correct name

Parent taxon: Isosphaerales Dedysh et al. 2020

Assigned by: Dedysh SN, Kulichevskaya IS, Beletsky AV, Ivanova AA, Rijpstra WIC, Damste JSS, Mardanov AV, Ravin NV. Lacipirellula parvula gen. nov., sp. nov., representing a lineage of planctomycetes widespread in low-oxygen habitats, description of the family Lacipirellulaceae fam. nov. and proposal of the orders Pirellulales ord. nov., Gemmatales ord. nov. and Isosphaerales ord. nov. Syst Appl Microbiol 2020; 43:126050. 🇷🇺

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Record number: 2025