Species "Phytomonas rhizogenes"

Name: "Phytomonas rhizogenes" Riker et al. 1930

Category, proposed as: species, sp. nov.

Etymology: rhi.zo’ge.nes. Gr. fem. n. rhiza, root; Gr. suff. -genes, producing; from Gr. ind. v. gennaô, to produce; N.L. fem. part. adj. rhizogenes, root-producing

Pronunciation (Latin), gender: p^hy-TO-mo-nas r^hi-ZO-ge-nes, feminine

Nomenclatural type: ATCC 11325; CECT 4117; CFBP 5520; CIP 104328; DSM 30148; HAMBI 1816; ICMP 5794; IFO 13257; JCM 20919; LMG 150; NBRC 13257; NCPPB 2991

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: D14501 Analyse FASTA

Original publication: Riker AJ, Banfield WM, Wright WH, Keitt GW, Sagen HE. Studies on infectious hairy-root of nursery apple trees. Journal of Agricultural Research 1930; 41:507-540.

Nomenclatural status: not validly published, basonym of name in Approved Lists

Taxonomic status: synonym (and no standing)

Correct name: Rhizobium rhizogenes (Riker et al. 1930) Young et al. 2001

• Synonyms:

  • Name	Kind
    Martinezella rhizogenes (Riker et al. 1930) Naranjo-Robayo et al. 2026	homotypic synonym, validly published under the ICNP
    Agrobacterium rhizogenes (Riker et al. 1930) Conn 1942 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Rhizobium rhizogenes (Riker et al. 1930) Young et al. 2001	homotypic synonym, validly published under the ICNP

Parent taxon: "Phytomonas" Bergey et al. 1923

Assigned by: Riker AJ, Banfield WM, Wright WH, Keitt GW, Sagen HE. Studies on infectious hairy-root of nursery apple trees. Journal of Agricultural Research 1930; 41:507-540.

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Record number: 3638

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  • Version	Date	JSON
    1	2026-03-31