Name: Myxococcales Tchan et al. 1948 (Approved Lists 1980)

Category: Order

Proposed as: ord. nov.

Etymology: N.L. masc. n. Myxococcus, type genus of the order; L. fem. pl. n. suff. -ales, ending to denote an order; N.L. fem. pl. n. Myxococcales, the Myxococcus order

Gender: feminine

Type genus: Myxococcus Thaxter 1892 (Approved Lists 1980)

Effective publication: Tchan YT, Pochon J, Prévot AR. Etude de systématique bactérienne. VIII. Essai de classification des Cytophaga. Annales de l’lnstitut Pasteur (Paris) 1948; 74:394-400.

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
    Haliangiales Waite et al. 2020	heterotypic synonym, validly published under the ICNP
    Polyangiales Waite et al. 2020	heterotypic synonym, validly published under the ICNP
    Nannocystales (Reichenbach 2007) Waite et al. 2020	heterotypic synonym, validly published under the ICNP

• Emendations:
  • Waite et al. 2020 Waite DW, Chuvochina M, Pelikan C, Parks DH, Yilmaz P, Wagner M, Loy A, Naganuma T, Nakai R, Whitman WB, et al. Proposal to reclassify the proteobacterial classes Deltaproteobacteria and Oligoflexia, and the phylum Thermodesulfobacteria into four phyla reflecting major functional capabilities. Int J Syst Evol Microbiol 2020; 70:5972-6016. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 11 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4645.
    Notes:
    • ⊕ Emendation accompanied by the inclusion of 3 families in the order.
    • ⊖ Emendation accompanied by the removal of 2 genera from the order. — ⊖ Emendation accompanied by the removal of 3 families from the order.

• Notes:
  • 🥇 Nomenclatural type of the class Deltabacteria Cavalier-Smith 2002. Publication: Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int J Syst Evol Microbiol 2002; 52:7-76.
  • 🥇 Nomenclatural type of the class "Myxococcia" Cavalier-Smith 2020. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • 🥇 Nomenclatural type of the class Myxococcia Waite et al. 2020. Publication: Waite DW, Chuvochina M, Pelikan C, Parks DH, Yilmaz P, Wagner M, Loy A, Naganuma T, Nakai R, Whitman WB, et al. Proposal to reclassify the proteobacterial classes Deltaproteobacteria and Oligoflexia, and the phylum Thermodesulfobacteria into four phyla reflecting major functional capabilities. Int J Syst Evol Microbiol 2020; 70:5972-6016.
  • 🥇 Nomenclatural type of the subclass "Myxococcidae" Cavalier-Smith 2020. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • 🥇 Nomenclatural type of the subdivision "Thiobacteria" Cavalier-Smith 2002. Publication: Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int J Syst Evol Microbiol 2002; 52:7-76.
  • 🧕 Cavalier-Smith and Chao (2020) assigned this order to the subclass "Myxococcidae" Cavalier-Smith 2020. Publication: Cavalier-Smith T, Chao EE. Multidomain ribosomal protein trees and the planctobacterial origin of neomura (eukaryotes, archaebacteria). Protoplasma 2020; 257:621-753.
  • 🧕 Waite et al. (2020) assigned this order to the class Myxococcia Waite et al. 2020. Publication: Waite DW, Chuvochina M, Pelikan C, Parks DH, Yilmaz P, Wagner M, Loy A, Naganuma T, Nakai R, Whitman WB, et al. Proposal to reclassify the proteobacterial classes Deltaproteobacteria and Oligoflexia, and the phylum Thermodesulfobacteria into four phyla reflecting major functional capabilities. Int J Syst Evol Microbiol 2020; 70:5972-6016.
  • 🧒 Boone et al. (2001) assigned the family Cystobacteraceae McCurdy 1970 (Approved Lists 1980) to this order. 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.
  • 🧒 Brenner et al. (2005) assigned the suborder Cystobacterineae Reichenbach 2007 to this order. Publication: Reichenbach H. Order VIII. Myxococcales Tchan, Pochon and Prévot 1948, 398AL. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1059-1072.
  • 🧒 Brenner et al. (2005) assigned the suborder Nannocystineae Reichenbach 2007 to this order. Publication: Reichenbach H. Order VIII. Myxococcales Tchan, Pochon and Prévot 1948, 398AL. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1059-1072.
  • 🧒 Brenner et al. (2005) assigned the suborder Sorangiineae corrig. Reichenbach 2007 to this order. Publication: Reichenbach H. Order VIII. Myxococcales Tchan, Pochon and Prévot 1948, 398AL. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1059-1072.
  • 🧒 Garcia et al. (2009) assigned the family Phaselicystidaceae Garcia et al. 2009 to this order. Publication: Garcia RO, Reichenbach H, Ring MW, Muller R. Phaselicystis flava gen. nov., sp. nov., an arachidonic acid-containing soil myxobacterium, and the description of Phaselicystidaceae fam. nov. Int J Syst Evol Microbiol 2009; 59:1524-1530.
  • 🧒 Garcia et al. (2009) assigned the family Phaselicystaceae corrig. Garcia et al. 2009 to this order. Publication: Garcia RO, Reichenbach H, Ring MW, Muller R. Phaselicystis flava gen. nov., sp. nov., an arachidonic acid-containing soil myxobacterium, and the description of Phaselicystidaceae fam. nov. Int J Syst Evol Microbiol 2009; 59:1524-1530.
  • 🧒 Garcia et al. (2014) assigned the genus Minicystis Garcia et al. 2014 to this order. Publication: Garcia R, Gemperlein K, Muller R. Minicystis rosea gen. nov., sp. nov., a polyunsaturated fatty acid-rich and steroid-producing soil myxobacterium. Int J Syst Evol Microbiol 2014; 64:3733-3742.
  • 🧒 Sproeer et al. (1999) assigned the genus "Chondrococcus" Jahn 1924 to this order. Publication: Sproer C, Reichenbach H, Stackebrandt E. The correlation between morphological and phylogenetic classification of myxobacteria. Int J Syst Bacteriol 1999; 49:1255-1262.
  • 🧒 Tchan et al. (1948) assigned the genus Myxococcus Thaxter 1892 (Approved Lists 1980) to this order. Publication: Tchan YT, Pochon J, Prévot AR. Etude de systématique bactérienne. VIII. Essai de classification des Cytophaga. Annales de l’lnstitut Pasteur (Paris) 1948; 74:394-400.
  • 🧒 Yamamoto et al. (2014) assigned the family Labilitrichaceae Yamamoto et al. 2014 to this order. Publication: Yamamoto E, Muramatsu H, Nagai K. Vulgatibacter incomptus gen. nov., sp. nov. and Labilithrix luteola gen. nov., sp. nov., two myxobacteria isolated from soil in Yakushima Island, and the description of Vulgatibacteraceae fam. nov., Labilitrichaceae fam. nov. and Anaeromyxobacteraceae fam. nov. Int J Syst Evol Microbiol 2014; 64:3360-3368.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Myxoccales".
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Garcia and Mueller (2018). 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: 95; JCM: 56; NCCB: 34; CIP: 27; ATCC: 25; NBRC: 23; KCTC: 5; MCCC: 3; NCIMB: 3; NRRL: 3.
  • 🧍 The order was reviewed in an easily digestible way by Lang and Göker (2009; in German). Publication: Lang E, Göker M. Myxococcales - Integration von klassischer und molekularer Taxonomie. BIOSpektrum 2009; 15:610-612.

Subdivision:

Number of child taxa with a validly published and correct name: 8
Number of child taxa with a validly published name, including synonyms: 12
Total number of child taxa: 15

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Anaeromyxobacteraceae Yamamoto et al. 2014	validly published under the ICNP	correct name
    Archangiaceae Jahn 1924 (Approved Lists 1980)	validly published under the ICNP	correct name
    Cystobacteraceae McCurdy 1970 (Approved Lists 1980)	validly published under the ICNP	synonym
    Haliangiaceae Waite et al. 2020	validly published under the ICNP	synonym
    "Haliangiaceae" Garrity et al. 2003	not validly published	synonym (and no standing)
    Kofleriaceae Reichenbach 2007	validly published under the ICNP	correct name
    Labilitrichaceae Yamamoto et al. 2014	validly published under the ICNP	synonym
    Myxococcaceae Jahn 1924 (Approved Lists 1980)	validly published under the ICNP	correct name
    [Myxococcales, not assigned to family]	artificial parent node of taxa incertae sedis
    Nannocystaceae Reichenbach 2006	validly published under the ICNP	correct name
    Phaselicystaceae corrig. Garcia et al. 2009	validly published under the ICNP	synonym
    Phaselicystidaceae Garcia et al. 2009	inaccurate spelling	misspelling
    Polyangiaceae Jahn 1924 (Approved Lists 1980)	validly published under the ICNP	correct name
    Sandaracinaceae Mohr et al. 2012	validly published under the ICNP	correct name
    Vulgatibacteraceae Yamamoto et al. 2014	validly published under the ICNP	correct name

Parent taxon: Deltaproteobacteria Kuever et al. 2006

Assigned by: Kuever J, Rainey FA, Widdel F. Class IV. Deltaproteobacteria class. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 2 (The Proteobacteria) part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 922.

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Record number: 5023