<Emphasis Type="Italic">Pectobacterium carotovorum</Emphasis> subsp. <Emphasis Type="Italic">carotovorum</Emphasis> can cause potato blackleg in temperate climates |
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Authors: | Eisse G de Haan Toos C E M Dekker-Nooren Gé W van den Bovenkamp Arjen G C L Speksnijder Patricia S van der Zouwen Jan M van der Wolf |
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Institution: | (1) Dutch General Inspection Service for Agricultural seed and seed potatoes (NAK), P.O. Box 1115, Randweg 14, 8300 BC Emmeloord, The Netherlands;(2) Plant Research International, P.O. Box 16, 6700 AA Wageningen, The Netherlands |
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Abstract: | 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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Keywords: | Erwinia carotovora subsp carotovora Pathogenicity PCR-amplification Symptom expression Vacuum infiltration |
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