Name: Gemmatimonas aurantiaca Zhang et al. 2003

Category: Species

Proposed as: sp. nov.

Etymology: au.ran.ti’a.ca. N.L. fem. adj. aurantiaca, orange-coloured

Pronunciation (Latin), gender: … a͡u-ran-TI-a-ka, feminine

Type strain: DSM 14586; JCM 11422; NBRC 100505; T-27

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB072735 Analyse FASTA

Valid publication: Zhang H, Sekiguchi Y, Hanada S, Hugenholtz P, Kim H, Kamagata Y, Nakamura K. Gemmatimonas aurantiaca gen. nov., sp. nov., a gram-negative, aerobic, polyphosphate-accumulating micro-organism, the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov. Int J Syst Evol Microbiol 2003; 53:1155-1163. 🇯🇵

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 53, part 4 of the IJSEM. Int J Syst Evol Microbiol 2003; 53:1703-1705.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Zeng et al. 2015 Zeng Y, Selyanin V, Lukes M, Dean J, Kaftan D, Feng F, Koblizek M. Characterization of the microaerophilic, bacteriochlorophyll a-containing bacterium Gemmatimonas phototrophica sp. nov., and emended descriptions of the genus Gemmatimonas and Gemmatimonas aurantiaca. Int J Syst Evol Microbiol 2015; 65:2410-2419. 🇨🇿 Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 65, part 8 of the IJSEM. Int J Syst Evol Microbiol 2015; 65:3768-3770.
  • García-López et al. 2019 Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083. 🇩🇪 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 Gemmatimonas Zhang et al. 2003. Publication: Zhang H, Sekiguchi Y, Hanada S, Hugenholtz P, Kim H, Kamagata Y, Nakamura K. Gemmatimonas aurantiaca gen. nov., sp. nov., a gram-negative, aerobic, polyphosphate-accumulating micro-organism, the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov. Int J Syst Evol Microbiol 2003; 53:1155-1163. 🇯🇵
  • 😷 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 17 times in PubMed until 2025-06-04.

Parent taxon: Gemmatimonas Zhang et al. 2003

Assigned by: Zhang H, Sekiguchi Y, Hanada S, Hugenholtz P, Kim H, Kamagata Y, Nakamura K. Gemmatimonas aurantiaca gen. nov., sp. nov., a gram-negative, aerobic, polyphosphate-accumulating micro-organism, the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov. Int J Syst Evol Microbiol 2003; 53:1155-1163. 🇯🇵

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Record number: 776437