Name: Polygonibacillus indicireducens Hirota et al. 2016

Category: Species

Proposed as: sp. nov.

Etymology: in.di.ci.re.du’cens. L. neut. adj. indicum, indigo; L. pres. part. reducens, bringing or leading back, used to mean ‘reducing’; N.L. masc. part. adj. indicireducens, indigo-reducing

Pronunciation (Latin), gender: … in-di-ki-re-DU-kens, masculine

Type strain: In2-9; JCM 30831; NCIMB 14982

See detailed strain information at

16S rRNA gene: LC054224 Analyse FASTA

Valid publication: Hirota K, Okamoto T, Matsuyama H, Yumoto I. Polygonibacillus indicireducens gen. nov., sp. nov., an indigo-reducing and obligate alkaliphile isolated from indigo fermentation liquor for dyeing. Int J Syst Evol Microbiol 2016; 66:4650-4656. 🇯🇵

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 11 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:179-182.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Polygonibacillus Hirota et al. 2016. Publication: Hirota K, Okamoto T, Matsuyama H, Yumoto I. Polygonibacillus indicireducens gen. nov., sp. nov., an indigo-reducing and obligate alkaliphile isolated from indigo fermentation liquor for dyeing. Int J Syst Evol Microbiol 2016; 66:4650-4656. 🇯🇵
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281. 🇬🇧
  • 😷 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 1 time in PubMed until 2025-06-04.

Parent taxon: Polygonibacillus Hirota et al. 2016

Assigned by: Hirota K, Okamoto T, Matsuyama H, Yumoto I. Polygonibacillus indicireducens gen. nov., sp. nov., an indigo-reducing and obligate alkaliphile isolated from indigo fermentation liquor for dyeing. Int J Syst Evol Microbiol 2016; 66:4650-4656. 🇯🇵

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Record number: 794832