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Diversity of Polyamine Patterns in Soft Rot Pathogens and Other Plant-Associated Members of the Enterobacteriaceae

Authors
Journal
Systematic and Applied Microbiology
0723-2020
Publisher
Elsevier
Publication Date
Volume
24
Issue
1
Identifiers
DOI: 10.1078/0723-2020-00019
Keywords
  • Pectolytic Erwinias
  • Pectobacterium Carotovorum
  • Basonym:Erwinia Carotovora
  • Pectobacterium Chrysanthemi
  • Basonym:E. Chrysanthemi
  • Erwinia Amylovora
  • Chemotaxonomy
  • Hplc
  • Polyamines
  • Diaminopropane
  • Putrescine
Disciplines
  • Biology
  • Medicine

Abstract

Summary Polyamine profiles of 91 pectolytic and other plant-associated strains from 30 taxa of the Enterobacteriaceae were obtained by gradient high performance liquid chromatography (HPLC). Pectobacterium carotovorum, basonym Erwinia carotovora, contained a high amount of putrescine and less diaminopropane. Diaminopropane was absent in Pectobacterium chrysanthemi, basonym E. chrysanthemi, whereas cadaverine was present in addition to the major compound putrescine. This chemotaxonomic difference reflects the deepest phylogenetic branching point within the recently emended genus Pectobacterium which lies between the two species P. carotovorum and P. chrysanthemi. Both important soft rot pathogens are easily distinguishable from each other and from the type species of the genus Erwinia as diaminopropane is the only major polyamine compound in E. amylovora. Chemotaxonomic heterogeneity is also emerging with respect to Dye's Amylovora group proposed in an early phytopathological concept.

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