Name: Terrirhizobium Sbissi et al. 2025

Category: Genus

Proposed as: gen. nov.

Etymology: Ter.ri.rhi.zo’bi.um. L. fem. n. terra, soil or earth; N.L. neut. n. Rhizobium, a bacterial genus name affiliated to the family Rhizobiaceae; N.L. neut. n. Terrirhizobium

Gender, pronunciation (Latin): neuter (stem: Terrirhizobi-), ter-ri-r^hi-ZO-bi-um

Type species: Terrirhizobium terrae (Lin et al. 2025) Sbissi et al. 2025

Valid publication: Sbissi I, Boussoufa D, Kammoun I, Hamra R, Dali H, Tarhouni M, Gtari M. Description of Neorhizobium tunisiense sp. nov., reclassification of Neorhizobium xiangyangii as Pseudorhizobium xiangyangii comb. nov. and proposal of Terrirhizobium terrae gen. nov., comb. nov. to accommodate the divergent species Aliirhizobium terrae. Int J Syst Evol Microbiol 2025; 75:6912. 🇹🇳

IJSEM list: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 75, part 9 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6967.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Aliirhizobium corrig. Ma et al. 2024

• Synonyms:

  • Name	Kind
    Aliirhizobium corrig. Ma et al. 2024	heterotypic synonym, validly published under the ICNP
    Alirhizobium Ma et al. 2024	heterotypic synonym, inaccurate spelling

• Notes:
  • 🚂 For the type species of this genus another name is in use, which is affiliated with the genus Aliirhizobium corrig. Ma et al. 2024. Publication: Lin SY, Lin TY, Hameed A, Tsai CF, Young CC. Description of Aliirhizobium terrae sp. nov., A Plant Growth-Promoting Bacterium Isolated from a Maize-Rice Rotation Agriculture Field. Curr Microbiol 2024; 81:328. 🇹🇼
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Mousavi SA, Young JPW. International committee on systematics of prokaryotes subcommittee on the taxonomy of rhizobia and agrobacteria: Minutes of the 2025 closed annual meeting. Int J Syst Evol Microbiol 2026; 76:7149. 🇫🇮
  • ❗ Terrirhizobium is the correct name instead if this genus is regarded as a separate genus (i.e., if its nomenclatural type is not assigned to another genus whose name is validly published, legitimate and not rejected and has priority).
  • 🧬 The phylogenomic assignment score of this taxon is 0.08338 (N = 32).
  • 🎰 The BRCs most frequently used for deposits in this group are: JCM: 1; BCRC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 1
Total number of child taxa: 1

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Terrirhizobium terrae (Lin et al. 2025) Sbissi et al. 2025	validly published under the ICNP	synonym

Parent taxon: Rhizobiaceae Conn 1938 (Approved Lists 1980)

Assigned by: Sbissi I, Boussoufa D, Kammoun I, Hamra R, Dali H, Tarhouni M, Gtari M. Description of Neorhizobium tunisiense sp. nov., reclassification of Neorhizobium xiangyangii as Pseudorhizobium xiangyangii comb. nov. and proposal of Terrirhizobium terrae gen. nov., comb. nov. to accommodate the divergent species Aliirhizobium terrae. Int J Syst Evol Microbiol 2025; 75:6912. 🇹🇳

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.67441Copy to clipboardLink copied to clipboard

Record number: 67441

• Previous versions:

  • Version	Date	JSON
    1	2026-03-31