Journal
EUROPEAN JOURNAL OF PLANT PATHOLOGY
Volume 122, Issue 4, Pages 561-569Publisher
SPRINGER
DOI: 10.1007/s10658-008-9325-y
Keywords
Erwinia carotovora subsp carotovora; Pathogenicity; PCR-amplification; Symptom expression; Vacuum infiltration
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It is well established that the pectinolytic bacteria Pectobacterium atrosepticum (Pca) and Dickeya spp. are causal organisms of blackleg in potato. In temperate climates, the role of Pectobacterium carotovorum subsp. carotovorum (Pcc) in potato blackleg, however, is unclear. In different western and central European countries plants are frequently found with blackleg from which only Pcc can be isolated, but not Pca or Dickeya spp. Nevertheless, tubers vacuum-infiltrated with Pcc strains have so far never yielded blackleg-diseased plants in field experiments in temperate climates. In this study, it is shown that potato tubers, vacuum-infiltrated with a subgroup of Pcc strains isolated in Europe, and planted in two different soil types, can result in up to 50% blackleg diseased plants.
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