Name: Porphyrobacter neustonensis Fuerst et al. 1993

Category: Species

Proposed as: sp. nov.

Etymology: neu.sto.nen’sis. Gr. masc. adj. neustos, swimming, floating; N.L. masc. adj. neustonensis, intended to mean occurring at the air-water interface layer [incorrectly formed: not a location]

Gender: masculine

Type strain: ACM 2844; CIP 104070; DSM 9434

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB033327 Analyse FASTA

Valid publication: Fuerst JA, Hawkins JA, Holmes A, Sly LI, Moore CJ, Stackebrandt E. Porphyrobacter neustonensis gen. nov., sp. nov., an aerobic bacteriochlorophyll-synthesizing budding bacterium from fresh water. Int J Syst Bacteriol 1993; 43:125-134.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 43, part 1 of the IJSB. Int J Syst Bacteriol 1993; 43:399.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Erythrobacter neustonensis (Fuerst et al. 1993) Xu et al. 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    Erythrobacter neustonensis (Fuerst et al. 1993) Xu et al. 2020	homotypic synonym, validly published under the ICNP

• Emendations:
  • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • 🥇 Nomenclatural type of the genus Porphyrobacter Fuerst et al. 1993. Publication: Fuerst JA, Hawkins JA, Holmes A, Sly LI, Moore CJ, Stackebrandt E. Porphyrobacter neustonensis gen. nov., sp. nov., an aerobic bacteriochlorophyll-synthesizing budding bacterium from fresh water. Int J Syst Bacteriol 1993; 43:125-134.
  • ❗ Porphyrobacter neustonensis is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Porphyrobacter.
  • 😷 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. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — 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 5 times in PubMed until 2024-03-27.

Parent taxon: Porphyrobacter Fuerst et al. 1993

Assigned by: Fuerst JA, Hawkins JA, Holmes A, Sly LI, Moore CJ, Stackebrandt E. Porphyrobacter neustonensis gen. nov., sp. nov., an aerobic bacteriochlorophyll-synthesizing budding bacterium from fresh water. Int J Syst Bacteriol 1993; 43:125-134.

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Record number: 779759