Name: Acidovorax citrulli (Schaad et al. 1978) Schaad et al. 2009

Category: Species

Proposed as: comb. nov.

Basonym: Pseudomonas pseudoalcaligenes subsp. citrulli Schaad et al. 1978 (Approved Lists 1980)

Etymology: ci.trul’li. N.L. gen. masc. n. citrulli, of Citrullus, a genus of melon plants

Pronunciation (Latin), gender: a-ki-DO-wo-rax ki-TRUL-li, masculine

Type strain: ATCC 29625; CCUG 17393; CFBP 4459; CIP 106436; DSM 17060; FC-247; IBSBF 1851; ICMP 7500; ICPB 30064; LMG 5376; NCPPB 3679

Conduct genome-based taxonomy at

16S rRNA gene: AF078761 Analyse FASTA

Effective publication: Schaad NW, Postnikova E, Sechler A, Claflin LE, Vidaver AK, Jones JB, Agarkova I, Ignatov A, Dickstein E, Ramundo BA. Reclassification of subspecies of Acidovorax avenae as A. Avenae (Manns 1905) emend., A. cattleyae (Pavarino, 1911) comb. nov., A. citrulli Schaad et al., 1978) comb. nov., and proposal of A. oryzae sp. nov. Syst Appl Microbiol 2008; 31:434-446. 🇺🇸

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

• Synonyms:

  • Name	Kind
    Paracidovorax citrulli (Schaad et al. 1978) Du et al. 2023	homotypic synonym, validly published under the ICNP
    Pseudomonas avenae subsp. citrulli (Schaad et al. 1978) Hu et al. 1991	homotypic synonym, validly published under the ICNP, distinct rank
    Acidovorax avenae subsp. citrulli (Schaad et al. 1978) Willems et al. 1992	homotypic synonym, validly published under the ICNP, distinct rank
    Pseudomonas pseudoalcaligenes subsp. citrulli Schaad et al. 1978 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is -0.03639 (N = 27).
  • 😷 The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1, note = "p". — 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.
  • 🎓 Name mentioned 139 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 the genus.
  • 🧍 Plant pathogenic according to Bull et al. (2012). Publication: Bull CT, De Boer SH, Denny TP, Firrao G, Fischer Le Saux M, Saddler GS, Scortichini M, Stead DE, Takikawa Y. List of new names of plant pathogenic bacteria (2008-2010). Journal of Plant Pathology 2012; 94:21-27. 🇺🇸
  • 🧍 In Validation List 127, Acidovorax citrulli (Schaad et al. 1978) Schaad et al. 2009 is erroneously cited as Acidovorax citrulli Schaad et al. 2009. Publication: Erratum. Int. J. Syst. Evol. Microbiol. 2009; 59:1851.

Parent taxon: Acidovorax Willems et al. 1990

Assigned by: Schaad NW, Postnikova E, Sechler A, Claflin LE, Vidaver AK, Jones JB, Agarkova I, Ignatov A, Dickstein E, Ramundo BA. Reclassification of subspecies of Acidovorax avenae as A. Avenae (Manns 1905) emend., A. cattleyae (Pavarino, 1911) comb. nov., A. citrulli Schaad et al., 1978) comb. nov., and proposal of A. oryzae sp. nov. Syst Appl Microbiol 2008; 31:434-446. 🇺🇸

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Record number: 787825