Name: Leifsonia xyli (Davis et al. 1984) Evtushenko et al. 2000

Category: Species

Proposed as: comb. nov.

Basonym: Clavibacter xyli Davis et al. 1984

Etymology: xy’li. Gr. neut. n. xylon, wood; L. gen. neut. n. xyli, of wood, intended to mean of the xylem

Pronunciation (Latin), gender: le͡if-SO-ni-a XY-li, feminine

Type strain: ATCC 33974; ICMP 7127; L1A; LMG 7352; NCPPB 3152; PDDCC 7127

Conduct genome-based taxonomy at

16S rRNA gene: Analyse FASTA

Valid publication: Evtushenko LI, Dorofeeva LV, Subbotin SA, Cole JR, Tiedje JM. Leifsonia poae gen. nov., sp. nov., isolated from nematode galls on Poa annua, and reclassification of 'Corynebacterium aquaticum' Leifson 1962 as Leifsonia aquatica (ex Leifson 1962) gen. nov., nom. rev., comb. nov. and Clavibacter xyli Davis et al. 1984 with two subspecies as Leifsonia xyli (Davis et al. 1984) gen. nov., comb. nov. Int J Syst Evol Microbiol 2000; 50:371-380. 🇷🇺

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 1 of the IJSEM. Int J Syst Evol Microbiol 2000; 50:425-426.

Nomenclatural status: validly published under the ICNP

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

• Synonyms:

  • Name	Kind
    Clavibacter xyli Davis et al. 1984	homotypic synonym, validly published under the ICNP

• Notes:
  • 🎓 Name mentioned 60 times in PubMed until 2026-06-11.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as 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.
  • 🧍 However, the strain ICMP 7127 seems available from the ICMP, see ICMP website, Living Culture Search, November 17, 2010. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592. 🇫🇷
  • 🧍 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. 🇺🇸
  • 🧍 According to Suzuki et al. 1999 [1], the type strain (L1A = NCPPB 3152 = PDDCC 7127 = ATCC 33974 = LMG 7352) of Leifsonia xyli (Davis et al. 1984) Evtushenko et al. 2000 is no more available from the authors of the species, the NCPPB, the ICMP (= the PDDCC), the ATCC, and the LMG. However, the strain ICMP 7127 seems available from the ICMP [2]. Publication: Suzuki KI, Suzuki M, Sasaki J, Park YH, Komagata KK. Leifsonia gen. nov., a genus for 2,4-diaminobutyric acid-containing actinomycetes to accommodate "Corynebacterium aquaticum" Leifson 1962 and Clavibacter xyli subsp. cynodontis Davis et al. 1984. J Gen Appl Microbiol 1999; 45:253-262. 🇯🇵

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
    Leifsonia xyli subsp. cynodontis (Davis et al. 1984) Evtushenko et al. 2000	validly published under the ICNP	correct name
    Leifsonia xyli subsp. xyli (Davis et al. 1984) Evtushenko et al. 2000	validly published under the ICNP	correct name

Parent taxon: Leifsonia Evtushenko et al. 2000

Assigned by: Evtushenko LI, Dorofeeva LV, Subbotin SA, Cole JR, Tiedje JM. Leifsonia poae gen. nov., sp. nov., isolated from nematode galls on Poa annua, and reclassification of 'Corynebacterium aquaticum' Leifson 1962 as Leifsonia aquatica (ex Leifson 1962) gen. nov., nom. rev., comb. nov. and Clavibacter xyli Davis et al. 1984 with two subspecies as Leifsonia xyli (Davis et al. 1984) gen. nov., comb. nov. Int J Syst Evol Microbiol 2000; 50:371-380. 🇷🇺

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Record number: 784128