Name: Acetomicrobium flavidum Soutschek et al. 1985

Category: Species

Proposed as: sp. nov.

Etymology: fla’vi.dum. L. neut. adj. flavidum, yellowish

Gender: neuter

Type strain: ATCC 43122; DSM 20664; LMG 6941

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: FR733692 Analyse FASTA

Effective publication: Soutschek E, Winter J, Schindler F, Ihndler O. Acetomicrobium flavidum, gen. nov., sp. nov., a thermophilic, anaerobic bacterium from sewage sludge, forming acetate, CO2 and H2 from glucose. Syst. Appl. Microbiol. 1984; 5:377-390.

IJSEM list: Anonymous. Validation list no. 17. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1985; 35:223-225.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Acetomicrobium Soutschek et al. 1985. Publication: Soutschek E, Winter J, Schindler F, Ihndler O. Acetomicrobium flavidum, gen. nov., sp. nov., a thermophilic, anaerobic bacterium from sewage sludge, forming acetate, CO2 and H2 from glucose. Syst. Appl. Microbiol. 1984; 5:377-390.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — 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.
  • 🎓 Name mentioned 3 times in PubMed until 2024-03-27.
  • 🧍 Yarza et al. (2013) expected for accession FR733692, originating from the alleged type-strain deposit DSM 20664, an affiliation with Bacteroidaceae (Bacteroidetes) but observed an affiliation with a deep branch in domain Bacteria and 71% similarity against Bacteroides fragilis; 99.7% against Anaerobaculum mobile. Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.
  • 🧍 The 16S rRNA gene sequence of the type strain shows an unexpected affiliation with a deep branch in domain Bacteria (99.7% against Anaerobaculum mobile; 71% similarity against Bacteroides fragilis). Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73.

Parent taxon: Acetomicrobium Soutschek et al. 1985

Assigned by: Soutschek E, Winter J, Schindler F, Ihndler O. Acetomicrobium flavidum, gen. nov., sp. nov., a thermophilic, anaerobic bacterium from sewage sludge, forming acetate, CO2 and H2 from glucose. Syst. Appl. Microbiol. 1984; 5:377-390.

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Record number: 772541