Name: Asaia siamensis Katsura et al. 2001

Category: Species

Proposed as: sp. nov.

Etymology: si.am.en’sis. Siam, old name of Thailand; L. masc./fem. adj. suff. -ensis, indicating geographical origin; N.L. masc./fem. adj. siamensis, of or pertaining to Siam (Thailand), where the type strain was isolated

Gender: feminine

Type strain: CCM 7132; DSM 15972; IFO 16457; JCM 10715; KCTC 12914; MTCC 4042; NBRC 16457; NRIC 323; S60-1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB681065 Analyse FASTA

Valid publication: Katsura K, Kawasaki H, Potacharoen W, Saono S, Seki T, Yamada Y, Uchimura T, Komagata K. Asaia siamensis sp. nov., an acetic acid bacterium in the alpha-proteobacteria. Int J Syst Evol Microbiol 2001; 51:559-563.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 51, part 2 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:795-796.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 6 times in PubMed until 2024-03-28.
  • 🧍 According to Rules 27(3) and 30, this name is not validly published, because the original publication makes reference to the deposit of the type strain in a single recognized culture collection. However, according to the Judicial Opinion 81, Asaia siamensis Katsura et al. 2001 is considered to be validly published, since deposit in a second culture collection in a different country has been documented. Publication: Euzeby JP, Tindall BJ. Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an opinion. Int J Syst Evol Microbiol 2004; 54:293-301.
  • 🧍 The specific epithet siamensis is a Neo Latin adjective, not a Neo Latin noun in the genitive case as cited by Katsura et al. 2001. Publication: Judicial Commission. Judicial Opinion No. 81. Int J Syst Evol Microbiol 2008; 58:1755-1763.

Parent taxon: Asaia Yamada et al. 2000

Assigned by: Katsura K, Kawasaki H, Potacharoen W, Saono S, Seki T, Yamada Y, Uchimura T, Komagata K. Asaia siamensis sp. nov., an acetic acid bacterium in the alpha-proteobacteria. Int J Syst Evol Microbiol 2001; 51:559-563.

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Record number: 773465