First Report of Cucumber leaf spot virus in Poland

Plant Disease
H PospiesznyR Plewa

Abstract

During April 2003, four young cucumber plants with slight stunting and delay of flowering were found in two commercial greenhouses in the Wielkopolska Region in Poland. Sporadically, chlorotic spots, sometimes with necrotic centers, were observed on the leaves of plants. Later, symptoms were less recognizable or they disappeared completely. Crude sap from symptomatic leaves of Cucumis sativus was used for mechanical inoculation of various plant species. The virus caused local and systemic infections on Cucumis sativus, Nicotiana benthamiana, and N. clevelandii and induced local necrotic lesions only on Chenopodium quinoa, C. amaranticolor, C. ficifolium, C. murale, Petunia hybrida, Cucurbita melo, Zinnia elegans, and Spinacia oleracea. No symptoms were seen in inoculated N. tabacum, N. glutinosa, Lycopersicon esculentum, Capsicum annuum, Physalis floridana, Phaseolus vulgaris, and Cucurbita pepo. Symptoms and host range were similar to those described for infection by Cucumber leaf spot virus (CLSV) (1). Electron microscopic examination of negatively stained leaf-dip preparation from infected plants showed spherical virus particles (approximately 30 nm). Total RNA extracted from symptomatic C.sativus and N. benthamiana plants, ...Continue Reading

Citations

Jul 3, 2020·Plants·Julia MinickaBeata Hasiów-Jaroszewska

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