Name: Ensifer kostiensis (Nick et al. 1999) Young 2003

Category: Species

Proposed as: comb. nov.

Basonym: Sinorhizobium kostiense Nick et al. 1999

Etymology: kos.ti.en’sis. N.L. masc./fem. adj. kostiensis, pertaining to Kosti, the region in Sudan where most of these organisms have been isolated

Gender: masculine

Type strain: ATCC BAA-227; DSM 13372; HAMBI 1489; LMG 15613; LMG 19227; NBRC 100382; TTR 15

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: Z78203 Analyse FASTA

Valid publication: Young JM. The genus name Ensifer Casida 1982 takes priority over Sinorhizobium Chen et al. 1988, and Sinorhizobium morelense Wang et al. 2002 is a later synonym of Ensifer adhaerens Casida 1982. Is the combination "Sinorhizobium adhaerens" (Casida 1982) Willems et al. 2003 legitimate? Request for an Opinion. Int J Syst Evol Microbiol 2003; 53:2107-2110.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 53, part 6 of the IJSEM. Int J Syst Evol Microbiol 2004; 54:309-311.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Sinorhizobium kostiense Nick et al. 1999	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 2 times in PubMed until 2024-03-27.

Parent taxon: Ensifer Casida 1982

Assigned by: Young JM. The genus name Ensifer Casida 1982 takes priority over Sinorhizobium Chen et al. 1988, and Sinorhizobium morelense Wang et al. 2002 is a later synonym of Ensifer adhaerens Casida 1982. Is the combination "Sinorhizobium adhaerens" (Casida 1982) Willems et al. 2003 legitimate? Request for an Opinion. Int J Syst Evol Microbiol 2003; 53:2107-2110.

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Record number: 775922