Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Pectobacterium carotovorum subsp. brasiliense causing blackleg and stem rot disease of potato in Russia.

Abstract

Blackleg and stem rot of potato (Solanum tuberosum) were observed in several commercial fields in the central part of Russia with up to 40% incidence during 2012-2017. Symptoms included decay of internal root and stem tissues, blackening of petiole vascular bundles and partial yellowing of leaves. The disease can cause serious potato yield losses in the field and storage in Russia. The causal pathogen was isolated and identified as Pectobacterium carotovorum subsp. brasiliensis based on molecular and pathogenicity analyses. The obtained sequences of the strains F126, F128 and F140 were deposited in GenBank (accession nos. MG570140, MG570141 and MG570142, respectively). This is thought to be the first report of blackleg and stem rot caused by P. carotovorum subsp. brasiliensis on potato in Russia.