Species Xanthomonas alfalfae

Name: Xanthomonas alfalfae (ex Riker et al. 1935) Schaad et al. 2007

Category: Species

Proposed as: sp. nov., nom. rev.

Etymology: al.fal’fae. N.L. gen. fem. n. alfalfae, of alfalfa (Medicago sativa)

Pronunciation (Latin), gender: xan-T^HO-mo-nas al-FAL-fa͡e, feminine

Type strain: ATCC 11765; ICMP 15807; ICPB 10701; LMG 495

Conduct genome-based taxonomy at

16S rRNA gene: JX986954 Analyse FASTA

Effective publication: Schaad NW, Postnikova E, Lacy G, Sechler A, Agarkova I, Stromberg PE, Stromberg VK, Vidaver AK. Emended classification of xanthomonad pathogens on citrus. Syst Appl Microbiol 2006; 29:690-695. 🇺🇸

IJSEM list: Euzeby JP. Validation list no. 115. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2007; 57:893-897.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Xanthomonas euvesicatoria Jones et al. 2006

Synonyms:

Name	Kind
Xanthomonas perforans Jones et al. 2006	heterotypic synonym, validly published under the ICNP
Xanthomonas euvesicatoria Jones et al. 2006	heterotypic synonym, validly published under the ICNP
"Xanthomonas euvesicatoria pv. perforans" (Jones et al. 2006) Constantin et al. 2016	heterotypic synonym, not validly published, distinct rank

Notes:
- ⏲ According to Constantin et al. (2016), this species is a later heterotypic synonym of Xanthomonas euvesicatoria Jones et al. 2006. Publication: Constantin EC, Cleenwerck I, Maes M, Baeyen S, et al. Genetic characterization of strains named as Xanthomonas axonopodis pv. dieffenbachiae leads to a taxonomic revision of the X. axonopodis species complex. Plant Pathol 2016; 65:792-806. 🇧🇪
- ❗ Xanthomonas alfalfae is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Xanthomonas.
- 🎓 Name mentioned 11 times in PubMed until 2026-06-11.
- 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of other species in the genus.
- 🧍 Plant pathogenic according to Bull et al. (2007). Publication: Bull CT, De Boer SH, Denny TP, Firrao G, Fischer Le Saux M, Saddler GS, Scortichini M, Stead DE, Takikawa Y. Comprehensive list of names of plant pathogenic bacteria, 1980-2007. Journal of Plant Pathology 2010; 92:551-592. 🇺🇸

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 2

Child taxa:

Name	Nomenclatural status	Taxonomic status
Xanthomonas alfalfae subsp. alfalfae (ex Riker et al. 1935) Schaad et al. 2007	validly published under the ICNP	correct name
Xanthomonas alfalfae subsp. citrumelonis Schaad et al. 2007	validly published under the ICNP	correct name

Parent taxon: Xanthomonas Dowson 1939 (Approved Lists 1980)

Assigned by: Schaad NW, Postnikova E, Lacy G, Sechler A, Agarkova I, Stromberg PE, Stromberg VK, Vidaver AK. Emended classification of xanthomonad pathogens on citrus. Syst Appl Microbiol 2006; 29:690-695. 🇺🇸

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.786237Link copied to clipboard

Record number: 786237

This LPSN page was printed on 2026-08-11 20:54:40

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Species Xanthomonas alfalfae