Name: Xylanibacter Ueki et al. 2006

Category: Genus

Proposed as: gen. nov.

Etymology: Xy.la.ni.bac’ter. N.L. neut. adj. xylanum, xylan; N.L. masc. n. bacter, a rod; N.L. masc. n. Xylanibacter, rod decomposing xylan

Gender, pronunciation (Latin): masculine (stem: Xylanibacter-), xy-la-ni-BAK-ter

Type species: Xylanibacter oryzae Ueki et al. 2006

Conduct genome-based taxonomy of genus at TYGS

Valid publication: Ueki A, Akasaka H, Suzuki D, Hattori S, Ueki K. Xylanibacter oryzae gen. nov., sp. nov., a novel strictly anaerobic, Gram-negative, xylanolytic bacterium isolated from rice-plant residue in flooded rice-field soil in Japan. Int J Syst Evol Microbiol 2006; 56:2215-2221. 🇯🇵

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 9 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:2725-2726.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Prevotella Shah and Collins 1990

• Synonyms:

  • Name	Kind
    Hoylesella Hitch et al. 2023	heterotypic synonym, validly published under the ICNP
    Leyella Hitch et al. 2023	heterotypic synonym, validly published under the ICNP
    Segatella Hitch et al. 2023	heterotypic synonym, validly published under the ICNP
    Prevotella Shah and Collins 1990	heterotypic synonym, validly published under the ICNP

• Emendations:
  • Hitch et al. 2022 Hitch TCA, Bisdorf K, Afrizal A, Riedel T, Overmann J, Strowig T, Clavel T. A taxonomic note on the genus Prevotella: Description of four novel genera and emended description of the genera Hallella and Xylanibacter. Syst Appl Microbiol 2022; 45:126354. 🇩🇪 Oren A, Göker M. List of changes in taxonomic opinion no. 37. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2023; 73:5696.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 5 new species in the genus.

• Notes:
  • 🚂 For the type species of this genus another name is in use, which is affiliated with the genus Prevotella Shah and Collins 1990. Publication: Sakamoto M, Ohkuma M. Reclassification of Xylanibacter oryzae Ueki et al. 2006 as Prevotella oryzae comb. nov., with an emended description of the genus Prevotella. Int J Syst Evol Microbiol 2012; 62:2637-2642. 🇯🇵
  • ❗ Xylanibacter is the correct name instead if this genus is regarded as a separate genus (i.e., if its nomenclatural type is not assigned to another genus whose name is validly published, legitimate and not rejected and has priority).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 8; JCM: 7; CIP: 2; ATCC: 2; VKM: 2.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 7
Total number of child taxa: 9

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Xylanibacter brevis (Bryant et al. 1958) Hitch et al. 2023	validly published under the ICNP	synonym
    Xylanibacter caecicola Afrizal et al. 2025	validly published under the ICNP	orphaned species
    Xylanibacter muris Hitch et al. 2023	validly published under the ICNP	orphaned species
    "Xylanibacter oryzae" Hitch et al. 2022	not validly published	synonym
    Xylanibacter oryzae Ueki et al. 2006	validly published under the ICNP	synonym
    Xylanibacter rara (Efimov et al. 2018) Hitch et al. 2023	inaccurate spelling	misspelling
    Xylanibacter rarus corrig. (Efimov et al. 2018) Hitch et al. 2023	validly published under the ICNP	synonym
    Xylanibacter rodentium Hitch et al. 2023	validly published under the ICNP	orphaned species
    Xylanibacter ruminicola (Bryant et al. 1958) Hitch et al. 2023	validly published under the ICNP	synonym

Parent taxon: Prevotellaceae Krieg 2012

Assigned by: Krieg NR. Family V. Prevotellaceae fam. 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. 85. 🇺🇸

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Record number: 516940