Name: Rhizomonas suberifaciens van Bruggen et al. 1990

Category: Species

Proposed as: sp. nov.

Etymology: su.be.ri.fa’ci.ens. L. neut. n. suber (gen. suberis), cork; L. pres. part. faciens, making, producing; N.L. fem. part. adj. suberifaciens, cork making

Pronunciation, gender: su-be-ri-FA-ki-ens, feminine

Type strain: ATCC 49355; Ca1; CIP 105429; DSM 7465; EY 2404; ICMP 12535; IFO 15211; JCM 8521; LMG 17323; NBRC 15211; NCPPB 3629

Conduct genome-based taxonomy at

16S rRNA gene: KF437561 Analyse FASTA

Valid publication: Van Bruggen AHC, Jochimsen KN, Brown PR. Rhizomonas suberifaciens gen. nov., sp. nov., the causal agent of corky root of lettuce. Int. J. Syst. Bacteriol. 1990; 40:175-188.

Nomenclatural status: validly published under the ICNP, rejected name

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

Correct name: Rhizorhapis suberifaciens (van Bruggen et al. 1990) Francis et al. 2014

Risk group: 1

• Synonyms:

  • Name	Kind
    Rhizorhapis suberifaciens (van Bruggen et al. 1990) Francis et al. 2014	homotypic synonym, validly published under the ICNP
    Sphingobium suberifaciens (van Bruggen et al. 1990) Chen et al. 2013	homotypic synonym, validly published under the ICNP
    Sphingomonas suberifaciens (van Bruggen et al. 1990) Yabuuchi et al. 1999	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Rhizomonas van Bruggen et al. 1990. Publication: Van Bruggen AHC, Jochimsen KN, Brown PR. Rhizomonas suberifaciens gen. nov., sp. nov., the causal agent of corky root of lettuce. Int. J. Syst. Bacteriol. 1990; 40:175-188.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1, note = "PP". — The risk group for Germany has been imported on 2023-10-29. 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 6 times in PubMed until 2025-06-04.
  • 🙅 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 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.
  • 🧍 Rejected name (Opinion 14); later homonym of a protozoan genus Rhizomonas. Publication: Judicial Commission. Judicial Opinion No. 14. Int J Syst Bacteriol 1954; 4:156-158.
  • 🧍 The name Rhizomonas suberifaciens van Bruggen et al. 1990 is illegitimate because it is placed in an illegitimate genus (see: Rhizomonas). However, according to Rule 32b, the specific epithet (suberifaciens) is not rendered illegitimate. So, the combination Sphingomonas suberifaciens is a correct name and must be used because it is the single legitimate, validly published name. Publication: Yabuuchi E, Kosako Y, Naka T, Suzuki S, Yano I. Proposal of Sphingomonas suberifaciens (van Bruggen, Jochimsen and Brown 1990) comb. nov., sphingomonas natatoria (Sly 1985) comb. nov., Sphingomonas ursincola (Yurkov et al. 1997) comb. nov., and emendation of the genus Sphingomonas. Microbiol Immunol 1999; 43:339-349.

Parent taxon: Rhizomonas van Bruggen et al. 1990

Assigned by: Van Bruggen AHC, Jochimsen KN, Brown PR. Rhizomonas suberifaciens gen. nov., sp. nov., the causal agent of corky root of lettuce. Int. J. Syst. Bacteriol. 1990; 40:175-188.

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Record number: 780389