Name: Malikia spinosa (Leifson 1962) Spring et al. 2005

Category: Species

Proposed as: comb. nov.

Basonym: Pseudomonas spinosa Leifson 1962 (Approved Lists 1980)

Etymology: spi.no’sa. L. fem. adj. spinosa, thorny, spiny

Pronunciation (Latin), gender: … spi-NO-sa, feminine

Type strain: 83; ATCC 14606; DSM 15801; JCM 21400; NBRC 103164

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB077038 Analyse FASTA

Valid publication: Spring S, Wagner M, Schumann P, Kampfer P. Malikia granosa gen. nov., sp. nov., a novel polyhydroxyalkanoate- and polyphosphate-accumulating bacterium isolated from activated sludge, and reclassification of Pseudomonas spinosa as Malikia spinosa comb. nov. Int J Syst Evol Microbiol 2005; 55:621-629. 🇩🇪

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 2 of the IJSEM. Int J Syst Evol Microbiol 2005; 55:1399-1402.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    Pseudomonas spinosa Leifson 1962 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.17114 (N = 19).
  • 😷 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". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — 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.
  • 🎓 Name mentioned 3 times in PubMed until 2025-06-04.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of other species in the genus.

Parent taxon: Malikia Spring et al. 2005

Assigned by: Spring S, Wagner M, Schumann P, Kampfer P. Malikia granosa gen. nov., sp. nov., a novel polyhydroxyalkanoate- and polyphosphate-accumulating bacterium isolated from activated sludge, and reclassification of Pseudomonas spinosa as Malikia spinosa comb. nov. Int J Syst Evol Microbiol 2005; 55:621-629. 🇩🇪

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Record number: 777652