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Int J Syst Evol Microbiol. 2004 Jan;54(Pt 1):107-13.

Erwinia papayae sp. nov., a pathogen of papaya (Carica papaya).

Author information

1
UMR de Pathologie Végétale INRA-INH-UNIVERSITE, BP 57, 42 rue G Morel, 49071 Beaucouzé, France. gardan@angers.inra.fr

Abstract

Bacterial canker of papaya (Carica papaya) emerged during the 1980s in different islands of the Caribbean. Nineteen strains of Gram-negative, rod-shaped, non-spore-forming bacteria isolated from papaya were compared to 38 reference and type strains of phytopathogenic Enterobacteriaceae and related bacteria. Phylogenetic analysis of 16S rRNA gene sequences showed that the papaya strains belonged to the genus Erwinia. The DNA G+C content of strain CFBP 5189T, 52.5 mol%, is in the range of the genus Erwinia. The 19 papaya strains were all pathogenic to papaya and were differentiated clearly from type or reference strains of phytopathogenic enterobacteria and related bacteria by phenotypic tests. The papaya strains constituted a discrete DNA hybridization group, indicating that they belonged to a unique genomic species. Thus, strains pathogenic to papaya belong to a novel species for which the name Erwinia papayae sp. nov. is proposed, with the type strain CFBP 5189T (=NCPPB 4294T).

PMID:
14742466
DOI:
10.1099/ijs.0.02718-0
[Indexed for MEDLINE]

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