Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

First report of Pea enation mosaic virus infecting pea and broad bean in Spain.

Abstract

During the spring of 2007, pea cultivars Utrillo and Floreta plants showing virus-like symptoms were observed in several commercial fields in the southern and eastern regions of Catalonia, Spain. Incidence of symptomatic plants ranged from 5 to 15% and was distributed in both small and large patches. Infected plants exhibited yellow mosaic leaf symptoms that later became translucent. Leaves gradually curled and in some cases developed enations near the veins on the abaxial surface. Plants were "bushy" and had shortened internodes. Infection prior to pod formation resulted in pods that were distorted and stunted. Pea enation mosaic virus [Pea enation mosaic virus-1] (PEMV) was detected in all 24 symptomatic samples that were collected from 10 locations between March 2007 and March 2008. Thirteen of these samples also tested positive for Beet western yellows virus, but no differences in symptom expression were observed in plants infected with both viruses or PEMV alone. PEMV was also identified in 7 broad bean (Vicia faba) plants from 3 additional locations. These plants expressed interveinal yellow mosaic on leaves and deformed pods. This is thought to be the first report of PEMV in Spain, which might cause important economic losses since PEMV is an important viral disease of pea and other legumes worldwide.