Name: Xylella fastidiosa subsp. fastidiosa (Wells et al. 1987) Schaad et al. 2009

Category: Subspecies

Proposed as: subsp. nov. (rule 40d)

Basonym: Xylella fastidiosa Wells et al. 1987

Etymology: fas.ti.di.o’sa. L. fem. adj. fastidiosa, fastidious, referring to the nutritional fastidiousness of the organism, particularly on primary isolation

Pronunciation (Latin), gender: xy-LEL-la fas-ti-di-O-sa fas-ti-di-O-sa, feminine

Type strain: ATCC 35879; DSM 10026; ICMP 15197; ICPB 50025; LMG 17159; PCE-RR

Effective publication: Schaad NW, Postnikova E, Lacy G, Fatmi M, Chang CJ. Erratum. Xylella fastidiosa subspecies: X. fastidiosa subsp piercei, subsp. nov., X. fastidiosa subsp. multiplex subsp. nov., and X. fastidiosa subsp. pauca subsp. nov. Syst. Appl. Microbiol. 2004; 27:763. 🇺🇸

IJSEM list: Euzeby JP. Validation list no. 127. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2009; 59:923-925.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Notes:
  • 📠 This subspecies was automatically created by the valid publication of Xylella fastidiosa subsp. multiplex Schaad et al. 2009 according to rule 40d. Publication: Schaad NW, Postnikova E, Lacy G, Fatmi M, Chang CJ. Xylella fastidiosa subspecies: X. fastidiosa subsp. [correction] fastidiosa [correction] subsp. nov., X. fastidiosa subsp. multiplex subsp. nov., and X. fastidiosa subsp. pauca subsp. nov. Syst Appl Microbiol 2004; 27:290-300. 🇺🇸
  • 😷 The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1, note = "p2". — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this subspecies. The name is on LoRN because of the recorded risk group of the species itself.
  • 🧍 Schaad et al. 2004 (Syst. Appl. Microbiol., 2004, 27, 290-300) proposed the subspecific epithet piercei. According to Rule 13d, "a subspecies that includes the type of the species must bear the same epithet as the species". Subsequently, the correct subspecific epithet (fastidiosa) was provided by the way of an erratum (Syst. Appl. Microbiol., 2004, 27, 763). Publication: Euzeby JP. Validation list no. 127. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2009; 59:923-925.
  • 🧍 The original authorship, Wells et al. 1987, was corrected according to the new Rule 40d. Publication: Garrity GM, Labeda DP, Oren A. Judicial Commission of the International Committee on Systematics of Prokaryotes. XIIth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 3, 4 and 6 August 2008, Istanbul, Turkey. Int. J. Syst. Evol. Microbiol. 2011; 61:2775-2780. 🇺🇸

Parent taxon: Xylella fastidiosa Wells et al. 1987

Assigned by: Schaad NW, Postnikova E, Lacy G, Fatmi M, Chang CJ. Erratum. Xylella fastidiosa subspecies: X. fastidiosa subsp piercei, subsp. nov., X. fastidiosa subsp. multiplex subsp. nov., and X. fastidiosa subsp. pauca subsp. nov. Syst. Appl. Microbiol. 2004; 27:763. 🇺🇸

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Record number: 787835