Name: Leifsonia aquatica (ex Leifson 1962) Evtushenko et al. 2000

Category: Species

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

Etymology: a.qua’ti.ca. L. fem. adj. aquatica, living, growing, or found in or by the water, aquatic

Gender: feminine

Type strain: ATCC 14665; CCUG 27700; CIP 64.13; DSM 20146; IFO 15710; JCM 1368; NBRC 15710; VKM Ac-1400

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X77450 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

Risk group: 2

• Synonyms:

  • Name	Kind
    "Leifsonia aquatica" (ex Leifson 1962) Suzuki et al. 1999	homotypic synonym, not validly published
    "Corynebacterium aquaticum" Leifson 1962	homotypic synonym, not validly published

• Notes:
  • 🥇 Nomenclatural type of the genus Leifsonia Evtushenko et al. 2000. 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.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 15 times in PubMed until 2024-03-27.
  • 🧍 According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.
  • 🧍 Nom. rev. / basonym: "Corynebacterium aquaticum". Publication: Leifson E. The bacterial flora of distilled and stored water. III. New species of the genera Corynebacterium, Flavobacterium, Spirillum and Pseudomonas. International Bulletin of Bacteriological Nomenclature and Taxonomy 1962; 12:161-170.
  • 🧍 In a paper published in the December 1999 issue of the Journal of General and Applied Microbiology, Suzuki et al. [1] proposed the genus Leifsonia Suzuki et al. (type species: Leifsonia aquatica), the species Leifsonia aquatica (ex Leifson 1962) Suzuki et al., Leifsonia naganoensis Suzuki et al., Leifsonia shinshuensis Suzuki et al., and the new combination Leifsonia cynodontis (Davis et al. 1984) Suzuki et al. Hereafter, the authors submit the new names and the new combination for valid publication by inscription in a validation list. The names Leifsonia naganoensis Suzuki et al. 2000, Leifsonia shinshuensis Suzuki et al. 2000, and Leifsonia cynodontis (Davis et al. 1984) Suzuki et al. 2000 are listed on the Validation List no. 75 (published in the July 2000 issue of the IJSEM). 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.
  • 🧍 See also: 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.
  • 🧍 The names Leifsonia naganoensis Suzuki et al. 2000, Leifsonia shinshuensis Suzuki et al. 2000, and Leifsonia cynodontis (Davis et al. 1984) Suzuki et al. 2000 are listed on the Validation List no. 75 (published in the July 2000 issue of the IJSEM). However Leifsonia Suzuki et al. and Leifsonia aquatica (ex Leifson 1962) Suzuki et al. are not included [2] because these names have been already validly published in the January 2000 issue of the IJSEM [3]. Publication: Anonymous. Validation list no. 75. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2000; 50:1415-1417.

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: 777460