Name: Phaseolibacter flectens (Johnson 1956) Halpern et al. 2013

Category: Species

Proposed as: comb. nov.

Basonym: Pseudomonas flectens Johnson 1956 (Approved Lists 1980)

Etymology: flec’tens. L. masc. part. adj. flectens, bending

Pronunciation, gender: FLEK-tens, masculine

Type strain: ATCC 12775; CFBP 3281; DSM 27043; ICMP 745; LMG 2187; NCPPB 539

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB021400 Analyse FASTA

Valid publication: Halpern M, Fridman S, Aizenberg-Gershtein Y, Izhaki I. Transfer of Pseudomonas flectens Johnson 1956 to Phaseolibacter gen. nov., in the family Enterobacteriaceae, as Phaseolibacter flectens gen. nov., comb. nov. Int J Syst Evol Microbiol 2013; 63:268-273.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 63, part 1 of the IJSEM. Int J Syst Evol Microbiol 2013; 63:1211-1213.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

• Synonyms:

  • Name	Kind
    Pseudomonas flectens Johnson 1956 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Phaseolibacter Halpern et al. 2013. Publication: Halpern M, Fridman S, Aizenberg-Gershtein Y, Izhaki I. Transfer of Pseudomonas flectens Johnson 1956 to Phaseolibacter gen. nov., in the family Enterobacteriaceae, as Phaseolibacter flectens gen. nov., comb. nov. Int J Syst Evol Microbiol 2013; 63:268-273.
  • 😷 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 4 times in PubMed until 2025-06-04.
  • 🙆 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.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Aizenberg-Gershtein Y, Izhaki I, Lapidus A, Copeland A, Reddy T, Huntemann M, Pillay M, Markowitz V, Goker M, Woyke T, et al. High quality permanent draft genome sequence of Phaseolibacter flectens ATCC 12775^T, a plant pathogen of French bean pods. Stand Genomic Sci 2016; 11:4.

Parent taxon: Phaseolibacter Halpern et al. 2013

Assigned by: Halpern M, Fridman S, Aizenberg-Gershtein Y, Izhaki I. Transfer of Pseudomonas flectens Johnson 1956 to Phaseolibacter gen. nov., in the family Enterobacteriaceae, as Phaseolibacter flectens gen. nov., comb. nov. Int J Syst Evol Microbiol 2013; 63:268-273.

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Record number: 790452