Name: Meiothermus taiwanensis Chen et al. 2002

Category: Species

Proposed as: sp. nov.

Etymology: tai.wa.nen’sis. N.L. masc. adj. taiwanensis, of Taiwan, from the hot springs of Taiwan where the bacterium was first isolated

Pronunciation, gender: tai-wa-NEN-sis, masculine

Type strain: ATCC BAA-399; BCRC 17170; CCRC 17170; DSM 14542; NBRC 105868; WR 30

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF418001 Analyse FASTA

Valid publication: Chen MY, Lin GH, Lin YT, Tsay SS. Meiothermus taiwanensis sp. nov., a novel filamentous, thermophilic species isolated in Taiwan. Int J Syst Evol Microbiol 2002; 52:1647-1654.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 5 of the IJSEM. Int J Syst Evol Microbiol 2003; 53:3-5.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • 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:
    • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project.
  • Jiao et al. 2022 Jiao JY, Lian ZH, Liu ZT, Liu L, Li MM, Lv AP, Xian WD, Zhou T, Lyu Z, Salam N, et al. Genome-based reclassification of the genus Meiothermus along with the proposal of a new genus Allomeiothermus gen. nov. Antonie Van Leeuwenhoek 2022; 115:645-659. Oren A, Garrity GM. List of changes in taxonomic opinion no. 36. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2022; 72:5413.

• Notes:
  • 😷 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 19 times in PubMed until 2025-06-04.
  • 🧍 The specific epithet taiwanensis is a "N.L. masc. adj.", not a "N.L. fem. adj." as cited in the paper by Chen et al. 2002. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592.

Parent taxon: Meiothermus Nobre et al. 1996

Assigned by: Chen MY, Lin GH, Lin YT, Tsay SS. Meiothermus taiwanensis sp. nov., a novel filamentous, thermophilic species isolated in Taiwan. Int J Syst Evol Microbiol 2002; 52:1647-1654.

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Record number: 777754