Name: Serratia marcescens subsp. marcescens (Bizio 1823) Ajithkumar et al. 2003

Category: Subspecies

Proposed as: subsp. nov. (rule 40d)

Basonym: Serratia marcescens Bizio 1823 (Approved Lists 1980)

Etymology: mar.ces’cens. L. fem. part. adj. marcescens, becoming weak, fading away

Pronunciation (Latin), gender: ser-RA-ti-a mar-KES-kens mar-KES-kens, feminine

Type strain: ATCC 13880; CCUG 1647; CFBP 4226; CIP 103235; DSM 30121; HAMBI 1286; JCM 1239; LMG 2792; NBRC 102204; NCTC 10211; NRRL B-2544; VKM B-1248

See detailed strain information at

Valid publication: Ajithkumar B, Ajithkumar VP, Iriye R, Doi Y, Sakai T. Spore-forming Serratia marcescens subsp. sakuensis subsp. nov., isolated from a domestic wastewater treatment tank. Int J Syst Evol Microbiol 2003; 53:253-258. 🇯🇵

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 53, part 1 of the IJSEM. Int J Syst Evol Microbiol 2003; 53:629-630.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym of its species (division into subspecies abandoned)

Risk group: 2

• Notes:
  • 📠 This subspecies was automatically created by the valid publication of Serratia marcescens subsp. sakuensis Ajithkumar et al. 2003 according to rule 40d. Publication: Ajithkumar B, Ajithkumar VP, Iriye R, Doi Y, Sakai T. Spore-forming Serratia marcescens subsp. sakuensis subsp. nov., isolated from a domestic wastewater treatment tank. Int J Syst Evol Microbiol 2003; 53:253-258. 🇯🇵
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • ❗ Serratia marcescens subsp. marcescens is the correct name instead if this subspecies is regarded as a separate subspecies (i.e., if its nomenclatural type is not assigned to another subspecies whose name is validly published, legitimate and not rejected and has priority) within a separate species Serratia marcescens within a separate genus Serratia.
  • 😷 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 Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 2, note = "ht". — 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.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this subspecies. The name is on LoRN because of the recorded risk group of the species itself.
  • 🧍 The original authorship, Bizio 1823, was corrected according to the new Rule 40d. Publication: Garrity GM, Labeda DP, Oren A. Judicial Commission of the International Committee on Systematics of Prokaryotes. XIIth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 3, 4 and 6 August 2008, Istanbul, Turkey. Int. J. Syst. Evol. Microbiol. 2011; 61:2775-2780. 🇺🇸

Parent taxon: Serratia marcescens Bizio 1823 (Approved Lists 1980)

Assigned by: Ajithkumar B, Ajithkumar VP, Iriye R, Doi Y, Sakai T. Spore-forming Serratia marcescens subsp. sakuensis subsp. nov., isolated from a domestic wastewater treatment tank. Int J Syst Evol Microbiol 2003; 53:253-258. 🇯🇵

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Record number: 780877