A Survey of Five Plant Viruses in Weeds and Tobacco in Poland

Grażyna Korbecka-Glinka,Marcin Przybyś,Beata Feledyn-Szewczyk

doi:10.3390/agronomy11081667

Grażyna Korbecka-Glinka, Marcin Przybyś + Show 1 more

Open Access

https://doi.org/10.3390/agronomy11081667

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Journal: Agronomy	Publication Date: Aug 21, 2021
Citations: 6	License type: CC BY 4.0

Affiliation: Institute of Soil Science and Plant Cultivation

Abstract

Weeds may contribute to the spread of plant virus epidemics by acting as reservoirs of viruses or/and their vectors. The aim of this research was to study the prevalence of five viral pathogens in weeds in the fields of solanaceous crops in six provinces in Poland differing with soil and climate conditions. Most of the sampled sites were associated with tobacco production. The total number of 157 samples of tobacco and 600 samples of weeds were subjected to DAS-ELISA detection of tomato spotted wilt orthotospovirus (TSWV), cucumber mosaic virus (CMV), potato virus Y (PVY), tobacco mosaic virus (TMV) and tobacco ringspot virus (TRSV). Twenty nine percent of samples of weeds were infected with at least one virus. TSWV and TMV were the most frequently detected in 17.5% and 14.7% of samples, respectively. In most provinces where infected tobacco was found, the same virus was also detected in weeds. Results of this survey are discussed in the context of the current status of virus epidemics in tobacco fields in Poland.

Highlights

tomato spotted wilt orthotospovirus (TSWV) and tobacco mosaic virus (TMV) were the most frequently detected in 17.5% and 14.7% of samples, respectively
In most provinces where infected tobacco was found, the same virus was detected in weeds. Results of this survey are discussed in the context of the current status of virus epidemics in tobacco fields in Poland
Weeds play an important role in plant virus epidemics in agroecosystems

Summary

Introduction

Weeds play an important role in plant virus epidemics in agroecosystems They contribute to the spread of virus diseases in the crops because they can act as reservoirs of viruses and their vectors [1,2]. Most of the viral pathogens threatening cultivated plants have broad host ranges and naturally infect many species from at least a few families [3]. They may thrive in alternative plant hosts, such as weeds, when annual crops are absent in the fields or when the resistant cultivars are grown. As epidemics spreads to new areas, it is frequently detected in samples of native flora in the neighbourhood of crop fields

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