Name: Xanthomonas cynarae Trébaol et al. 2000

Category: Species

Proposed as: sp. nov.

Etymology: cy.na’rae N.L. n. Cynara, genus name of artichoke; N.L. gen. n. cynarae, of Cynara (Cynara scolymus L.)

Gender: feminine

Type strain: CFBP 4188; CIP 106774; DSM 16794; DSM 18811; ICMP 16775

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF208315 Analyse FASTA

Valid publication: Trebaol G, Gardan L, Manceau C, Tanguy JL, Tirilly Y, Boury S. Genomic and phenotypic characterization of Xanthomonas cynarae sp. nov., a new species that causes bacterial bract spot of artichoke (Cynara scolymus L.). Int J Syst Evol Microbiol 2000; 50:1471-1478.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 4 of the IJSEM. Int J Syst Evol Microbiol 2000; 50:1701-1702.

Nomenclatural status: validly published

Taxonomic status: synonym

Correct name: Xanthomonas hortorum Vauterin et al. 1995

Risk group: 1

• Synonyms:

  • Name	Kind
    Xanthomonas gardneri (ex Šutič 1957) Jones et al. 2006	heterotypic synonym, validly published
    Xanthomonas hortorum Vauterin et al. 1995	heterotypic synonym, validly published

• Emendations:
  • Timilsina et al. 2019 Timilsina S, Kara S, Jacques MA, Potnis N, Minsavage GV, Vallad GE, Jones JB, Fischer-Le Saux M. Reclassification of Xanthomonas gardneri (ex Sutic 1957) Jones et al. 2006 as a later heterotypic synonym of Xanthomonas cynarae Trebaol et al. 2000 and description of X. cynarae pv. cynarae and X. cynarae pv. gardneri based on whole genome analyses. Int J Syst Evol Microbiol 2019; 69:343-349. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 69, part 2 of the IJSEM. Int J Syst Evol Microbiol 2019; 69:1251-1252.
    Notes:
    • Emendation accompanied by a proposal regarding the synonymy of the species.

• Notes:
  • According to Moriniere et al. (2020), this species is a later heterotypic synonym of Xanthomonas hortorum Vauterin et al. 1995. Publication: Moriniere L, Burlet A, Rosenthal ER, Nesme X, Portier P, Bull CT, Lavire C, Fischer-Le Saux M, Bertolla F. Clarifying the taxonomy of the causal agent of bacterial leaf spot of lettuce through a polyphasic approach reveals that Xanthomonas cynarae Trebaol et al. 2000 emend. Timilsina et al. 2019 is a later heterotypic synonym of Xanthomonas hortorum Vauterin et al. 1995. Syst Appl Microbiol 2020; 43:126087.
  • According to Timilsina et al. (2019), this species is an earlier heterotypic synonym of Xanthomonas gardneri (ex Šutič 1957) Jones et al. 2006. Publication: Timilsina S, Kara S, Jacques MA, Potnis N, Minsavage GV, Vallad GE, Jones JB, Fischer-Le Saux M. Reclassification of Xanthomonas gardneri (ex Sutic 1957) Jones et al. 2006 as a later heterotypic synonym of Xanthomonas cynarae Trebaol et al. 2000 and description of X. cynarae pv. cynarae and X. cynarae pv. gardneri based on whole genome analyses. Int J Syst Evol Microbiol 2019; 69:343-349.
  • Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. List of changes in taxonomic opinion no. 33. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2021; 71:2-3.
  • Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 69, part 2 of the IJSEM. Int J Syst Evol Microbiol 2019; 69:1251-1252.
  • The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • Xanthomonas cynarae is the correct name if this species is regarded as a separate species within a separate genus Xanthomonas.
  • The full TRBA 466 classification is: risk group = 1, note = "p".

Parent taxon: Xanthomonas Dowson 1939 (Approved Lists 1980)

Assigned by: Trebaol G, Gardan L, Manceau C, Tanguy JL, Tirilly Y, Boury S. Genomic and phenotypic characterization of Xanthomonas cynarae sp. nov., a new species that causes bacterial bract spot of artichoke (Cynara scolymus L.). Int J Syst Evol Microbiol 2000; 50:1471-1478.

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Record number: 783134