Name: "Streptotrix violacea" Rossi Doria 1891

Category: Species

Proposed as: sp. nov.

Etymology: vi.o.la’ce.a. L. fem. adj. violacea, violet-colored

Pronunciation: wi-o-LA-ke-a

Nomenclatural type: ATCC 15888; ATCC 25515; BCRC 11880; CBS 657.69; CCRC 11880; CCT 4833; CECT 3235; CECT 8814; CGMCC 4.1456; DSM 40082; IFO 13103; IMET 43085; INMI 1; ISP 5082; JCM 4533; LMG 19360; LMG 20257; NBRC 13103; NRRL B-2869; NRRL ISP-5082; RIA 1295; RIA 656; VKM Ac-510; VKM Ac-977

Conduct genome-based taxonomy at

16S rRNA gene: AJ781755 Analyse FASTA

Original publication: Rossi Doria T. Su di alcune specie di "Streptotrix" trovate nell'aria studate in rapporto a quelle giá note a specialmente all' "Actinomyces". Annali dell'Istituto d'Igiene Sperimentale, Universita Roma 1891; 1:399-438.

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

Taxonomic status: synonym (and no standing)

Correct name: Streptomyces violaceus (Rossi Doria 1891) Waksman 1953 (Approved Lists 1980)

Risk group: 1

• Synonyms:

  • Name	Kind
    "Actinomyces janthinus" Artamonova and Krassilnikov 1960	heterotypic synonym, not validly published, basonym of name in Approved Lists
    Streptomyces janthinus (Artamonova and Krassilnikov 1960) Pridham 1970 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    "Actinomyces violatus" Artamonova and Krassilnikov 1960	heterotypic synonym, not validly published, basonym of name in Approved Lists
    Streptomyces violatus (Artamonova and Krassilnikov 1960) Pridham 1970 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Streptomyces violaceus (Rossi Doria 1891) Waksman 1953 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • ⏰ According to Lanoot et al. (2002), this species is an earlier heterotypic synonym of "Actinomyces violatus" Artamonova and Krassilnikov 1960. Publication: Lanoot B, Vancanneyt M, Cleenwerck I, Wang L, Li W, Liu Z, Swings J. The search for synonyms among streptomycetes by using SDS-PAGE of whole-cell proteins. Emendation of the species Streptomyces aurantiacus, Streptomyces cacaoi subsp. cacaoi, Streptomyces caeruleus and Streptomyces violaceus. Int J Syst Evol Microbiol 2002; 52:823-829.
  • ⏰ According to Lanoot et al. (2002), this species is an earlier heterotypic synonym of Streptomyces violatus (Artamonova and Krassilnikov 1960) Pridham 1970 (Approved Lists 1980). Publication: Lanoot B, Vancanneyt M, Cleenwerck I, Wang L, Li W, Liu Z, Swings J. The search for synonyms among streptomycetes by using SDS-PAGE of whole-cell proteins. Emendation of the species Streptomyces aurantiacus, Streptomyces cacaoi subsp. cacaoi, Streptomyces caeruleus and Streptomyces violaceus. Int J Syst Evol Microbiol 2002; 52:823-829.
  • ⏰ According to Li et al. (2025), this species is an earlier heterotypic synonym of "Actinomyces janthinus" Artamonova and Krassilnikov 1960. Publication: Li K, Qian Y, Li B, Liang W. Proposal of Streptomyces janthinus (Artamonova and Krassilnikov 1960) Pridham 1970 (Approved Lists 1980) as a later heterotypic synonym of Streptomyces violaceus (Rossi Doria 1891) Waksman 1953 (Approved Lists 1980) and an emended description of Streptomyces violaceus. Int J Syst Evol Microbiol 2025; 75:6892.
  • ⏰ According to Li et al. (2025), this species is an earlier heterotypic synonym of Streptomyces janthinus (Artamonova and Krassilnikov 1960) Pridham 1970 (Approved Lists 1980). Publication: Li K, Qian Y, Li B, Liang W. Proposal of Streptomyces janthinus (Artamonova and Krassilnikov 1960) Pridham 1970 (Approved Lists 1980) as a later heterotypic synonym of Streptomyces violaceus (Rossi Doria 1891) Waksman 1953 (Approved Lists 1980) and an emended description of Streptomyces violaceus. Int J Syst Evol Microbiol 2025; 75:6892.
  • 😷 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". — 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: [Streptotrix]

Assigned by: Rossi Doria T. Su di alcune specie di "Streptotrix" trovate nell'aria studate in rapporto a quelle giá note a specialmente all' "Actinomyces". Annali dell'Istituto d'Igiene Sperimentale, Universita Roma 1891; 1:399-438.

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Record number: 4566