Name: "Thermopolyspora rectivirgula" Krassilnikov and Agre 1964

Category: Species

Proposed as: sp. nov.

Etymology: rec.ti.vir’gu.la. L. fem. dim. n. virgula, twig; N.L. fem. dim. n. rectivirgula, straight twig

Pronunciation, gender: rek-ti-WIR-gu-la, feminine

Nomenclatural type: ATCC 33515; DSM 43747; IFO 12464; INMI 683; JCM 3057; NBRC 12464; NRRL B-16280; VKM Ac-810

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: JN010255 Analyse FASTA

Original publication: Krassilnikov NA, Agre NS. On two new species of Thermopolyspora. Hindustan Antibiotics Bulletin 1964; 6:97-107.

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

Taxonomic status: synonym (and no standing)

Correct name: Saccharopolyspora rectivirgula (Krassilnikov and Agre 1964) Korn-Wendisch et al. 1989

Risk group: 2

• Synonyms:

  • Name	Kind
    Faenia rectivirgula (Krassilnikov and Agre 1964) Kurup and Agre 1983	homotypic synonym, validly published under the ICNP
    Micropolyspora rectivirgula (Krassilnikov and Agre 1964) Prauser and Momirova 1970 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Saccharopolyspora rectivirgula (Krassilnikov and Agre 1964) Korn-Wendisch et al. 1989	homotypic synonym, validly published under the ICNP
    Micropolyspora faeni Cross et al. 1968 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏰ According to Kurup and Agre (1983), this species is an earlier heterotypic synonym of Micropolyspora faeni Cross et al. 1968 (Approved Lists 1980). Publication: Kurup VP, Agre NS. Transfer of Micropolyspora rectivirgula (Krasil'nikov and Agre 1964) Lechevalier, Lechevalier, and Becker 1966 to Faenia gen. nov. Int. J. Syst. Bacteriol. 1983; 33:663-665.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human and animal pathogen - biological class of risk animal: 2". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — 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.

Parent taxon: "Thermopolyspora" Henssen 1957

Assigned by: Krassilnikov NA, Agre NS. On two new species of Thermopolyspora. Hindustan Antibiotics Bulletin 1964; 6:97-107.

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Record number: 3936