Species ***Erwinia* *piriflorinigrans***

Name: Erwinia piriflorinigrans López et al. 2011

Category: Species

Proposed as: sp. nov.

Etymology: pi.ri.flo.ri.ni’grans. L. fem. n. pirus, pear tree; L. masc. n. flos (gen. floris), flower; L. pres. part. nigrans, blackened, darkened; N.L. fem. part. adj. piriflorinigrans, blackened pear blossom, from which the type strain was isolated

Pronunciation (Latin), gender: er-WI-ni-a pi-ri-flo-ri-NI-grans, feminine

Type strain: CECT 7348; CFBP 5888; DSM 26166

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: GQ405202 Analyse FASTA

Valid publication: Lopez MM, Rosello M, Llop P, Ferrer S, Christen R, Gardan L. Erwinia piriflorinigrans sp. nov., a novel pathogen that causes necrosis of pear blossoms. Int J Syst Evol Microbiol 2011; 61:561-567. 🇪🇸

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 61, part 3 of the IJSEM. Int J Syst Evol Microbiol 2011; 61:1237-1238.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

Notes:
- 😷 The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1, note = "p". — 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 4 times in PubMed until 2026-06-11.
- 🙆 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 the genus.
- 🧍 Plant pathogenic according to Bull et al. (2014). Publication: Bull CT, De Boer SH, Denny TP, Firrao G, Fischer Le Saux M, Saddler GS, Scortichini M, Stead DE, Takikawa Y. List of new names of plant pathogenic bacteria (2011-2012). Journal of Plant Pathology 2014; 96:223-226. 🇺🇸

Parent taxon: Erwinia Winslow et al. 1920 (Approved Lists 1980)

Assigned by: Lopez MM, Rosello M, Llop P, Ferrer S, Christen R, Gardan L. Erwinia piriflorinigrans sp. nov., a novel pathogen that causes necrosis of pear blossoms. Int J Syst Evol Microbiol 2011; 61:561-567. 🇪🇸

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.789076Link copied to clipboard

Record number: 789076

This LPSN page was printed on 2026-09-12 11:52:54

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Species Erwinia piriflorinigrans

Species ***Erwinia* *piriflorinigrans***