Name: Zoogloea ramigera Itzigsohn 1868 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: ra.mi.ge.ra. L. masc. n. ramus, a branch; N.L. masc. adj. suff. -gerus, bearing; from L. v. gero, to bear; N.L. fem. adj. ramigera, branch-bearing

Gender: feminine

Type strain: ATCC 19544; CCUG 35504; CIP 107119; IAM 12136; IFO 15342; LMG 17136; NBRC 15342; NCTC 13030; NRRL B-3691

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X74913 Analyse FASTA

Effective publication: Itzigsohn H. Entwicklungsvorgänge von Zoogloea, Oscillaria, Synedra, Staurastrum, Spirotaenia und chroolepus. Sitzungs-Berichte der Gesellschaft naturforschender Freunde zu Berlin, 19 November 1867. Akademische Buchdruckerei in der Nicolai'schen Buchhandlung, Berlin, 1868.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Dahal et al. 2020 Dahal RH, Chaudhary DK, Kim DU, Kim J. Zoogloea dura sp. nov., a N2-fixing bacterium isolated from forest soil and emendation of the genus Zoogloea and the species Zoogloea oryzae and Zoogloea ramigera. Int J Syst Evol Microbiol 2020; 70:5312-5318. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 10 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4565.

• Notes:
  • Nomenclatural type of the genus Zoogloea Itzigsohn 1868 (Approved Lists 1980). Publication: Itzigsohn H. Entwicklungsvorgänge von Zoogloea, Oscillaria, Synedra, Staurastrum, Spirotaenia und chroolepus. Sitzungs-Berichte der Gesellschaft naturforschender Freunde zu Berlin, 19 November 1867. Akademische Buchdruckerei in der Nicolai'schen Buchhandlung, Berlin, 1868.
  • The strain ATCC 19623 = IAM 12669, previously designated as a reference strain of Zoogloea ramigera, is now the type strain of Crabtreella saccharophila Xie and Yokota 2006. Publication: Xie CH, Yokota A. Zoogloea oryzae sp. nov., a nitrogen-fixing bacterium isolated from rice paddy soil, and reclassification of the strain ATCC 19623 as Crabtreella saccharophila gen. nov., sp. nov. Int J Syst Evol Microbiol 2006; 56:619-624.
  • This name was subject to a Request for an Opinion. Publication: Unz RF. Neotype Strain of Zoogloea ramigera Itzigsohn: Request for an Opinion. International Journal of Systematic Bacteriology 1971; 21:91-99.

Parent taxon: Zoogloea Itzigsohn 1868 (Approved Lists 1980)

Assigned by: Itzigsohn H. Entwicklungsvorgänge von Zoogloea, Oscillaria, Synedra, Staurastrum, Spirotaenia und chroolepus. Sitzungs-Berichte der Gesellschaft naturforschender Freunde zu Berlin, 19 November 1867. Akademische Buchdruckerei in der Nicolai'schen Buchhandlung, Berlin, 1868.

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Record number: 783212