Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Leek yellow stripe virus in leek in Serbia.

Abstract

Leek yellow stripe virus (LYSV), one of the most important and widespread viruses of leek and garlic worldwide, is endemic in various countries of the Mediterranean basin. During an October 2013 survey for the presence of Allium viruses in Serbia, commercially grown leek (Allium porrum) plants with virus-like symptoms were observed in Padinska Skela, City of Belgrade District. Initially, the leaf symptoms included irregular chlorotic to light yellow dashes, particularly on the bases of leaves. The lesions later enlarged and coalesced, resulting in large, yellow stripes and the infected leaves turned yellow and flaccid, followed by die-back. Disease incidence in the leek field was estimated at 20%. Results of double-antibody sandwich-ELISA test revealed that all the 15 symptomatic plant samples were positive for LYSV and negative for the rest of tested viruses. These results were further confirmed by reverse transcription-PCR and nucleotide sequence analysis. This is thought to be the first report of natural infection of leek with LYSV in Serbia.