Name: Pararhizobium antarcticum Naqvi et al. 2017

Category: Species

Proposed as: sp. nov.

Etymology: ant.arc’ti.cum. L. neut. adj. antarcticum, referring to the location from where the type strain was isolated

Pronunciation (Latin), gender: pa-ra-r^hi-ZO-bi-um ant-ARK-ti-kum, neuter

Type strain: 59; DSM 103442; LMG 29675; NAQVI 59

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: LSRP01000156 Analyse FASTA

Valid publication: Naqvi SU, Qin Y, Tahir A, Stougaard P. Pararhizobium antarcticum sp. nov., isolated from Antarctic water samples. Int J Syst Evol Microbiol 2017; 67:1650-1655. 🇩🇰

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 67, part 6 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:3137-3139.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 2 times in PubMed until 2026-06-11.
  • 🧍 The phylogenetic position of this species was determined in a genome-scale analysis by Hördt et al. (2020). Publication: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪

Parent taxon: Pararhizobium Mousavi et al. 2016

Assigned by: Naqvi SU, Qin Y, Tahir A, Stougaard P. Pararhizobium antarcticum sp. nov., isolated from Antarctic water samples. Int J Syst Evol Microbiol 2017; 67:1650-1655. 🇩🇰

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Record number: 795432