Name: Erythromicrobium ramosum Yurkov et al. 1994

Category: Species

Proposed as: sp. nov.

Etymology: ra.mo’sum. L. neut. adj. ramosum, having many branches, branching, referring to the morphology of the cells

Pronunciation, gender: ra-MO-sum, neuter

Type strain: ATCC 700003; CIP 106927; DSM 8510; E5; JCM 10282; NBRC 102621

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF465837 Analyse FASTA

Valid publication: Yurkov V, Stackebrandt E, Holmes A, Fuerst JA, Hugenholtz P, Golecki J, Gad'on N, Gorlenko VM, Kompantseva EI, Drews G. Phylogenetic positions of novel aerobic, bacteriochlorophyll a-containing bacteria and description of Roseococcus thiosulfatophilus gen. nov., sp. nov., Erythromicrobium ramosum gen. nov., sp. nov., and Erythrobacter litoralis sp. nov. Int J Syst Bacteriol 1994; 44:427-434.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 44, part 3 of the IJSB. Int J Syst Bacteriol 1994; 44:853.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Erythrobacter ramosus (Yurkov et al. 1994) Xu et al. 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    Erythrobacter ramosus (Yurkov et al. 1994) Xu et al. 2020	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Erythromicrobium Yurkov et al. 1994. Publication: Yurkov V, Stackebrandt E, Holmes A, Fuerst JA, Hugenholtz P, Golecki J, Gad'on N, Gorlenko VM, Kompantseva EI, Drews G. Phylogenetic positions of novel aerobic, bacteriochlorophyll a-containing bacteria and description of Roseococcus thiosulfatophilus gen. nov., sp. nov., Erythromicrobium ramosum gen. nov., sp. nov., and Erythrobacter litoralis sp. nov. Int J Syst Bacteriol 1994; 44:427-434.
  • ❗ Erythromicrobium ramosum 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 Erythromicrobium.
  • 😷 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 6 times in PubMed until 2025-06-04.
  • 🧍 According to Ludwig et al. (2021), this "species may be reclassified as Porphyrobacter". Publication: Ludwig W, Viver T, Westram R, Francisco Gago J, Bustos-Caparros E, Knittel K, Amann R, Rossello-Mora R. Release LTP_12_2020, featuring a new ARB alignment and improved 16S rRNA tree for prokaryotic type strains. Syst Appl Microbiol 2021; 44:126218.

Parent taxon: Erythromicrobium Yurkov et al. 1994

Assigned by: Yurkov V, Stackebrandt E, Holmes A, Fuerst JA, Hugenholtz P, Golecki J, Gad'on N, Gorlenko VM, Kompantseva EI, Drews G. Phylogenetic positions of novel aerobic, bacteriochlorophyll a-containing bacteria and description of Roseococcus thiosulfatophilus gen. nov., sp. nov., Erythromicrobium ramosum gen. nov., sp. nov., and Erythrobacter litoralis sp. nov. Int J Syst Bacteriol 1994; 44:427-434.

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Record number: 776049