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Identification of Erwinia rhapontici as the Causal Agent of Crown and Shoot Rot and Pink Seed of Pea in Nebraska

A. O. Adesemoye, H.-H. Wei, and R. M. Harveson

July 2016


Dry yellow pea production has been increasing in the central High Plains. One of the emerging pathogens of pea in the region is Erwinia rhapontici. In a Nebraska disease survey, a pea field exhibited a high incidence of bacterial-like symptoms. Four of the isolates recovered from samples were identified as E. rhapontici by sequencing the 16s rDNA. Similar symptoms to those seen on the field were also reestablished by these strains in pathogenicity tests through rolled towel and greenhouse assays.


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