Distribution, variabiality and overwintering of Zucchini yellow mosaic virus in the Czech Republic

Jiří Svoboda and Jaroslav Polák
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Jiří Svoboda: Division of Plant Medicine - Research Institute of Crop Production, Prague-Ruzyně, Czech Republic
Jaroslav Polák: Division of Plant Medicine - Research Institute of Crop Production, Prague-Ruzyně, Czech Republic

Plant Protection Science, 2002, vol. 38, issue 4, 125-130

Abstract: The incidence of Zucchini yellow mosaic virus (ZYMV) was monitored in the south Moravian region of the Czech Republic during 1997-2001. Crops of gherkin, squash, zucchini and cucumbers were found infected with ZYMV, manifested by symptoms of severe stunting and yellowing with deformed leaves and fruits. Twenty to eighty percent of infected plants were recorded. Six isolates of ZYMV from four localities were differentiated on indicator plants; three of them were maintained as being typical for differences in pathogenicity. Overwintered weed species were tested for the presence of the virus. ZYMV was detected by ELISA in one plant of Tripleurospermum maritimum out of 46 tested, and in two plants of Stellaria media out of 29 tested in 2001. Such tests were repeated in 2002, and ZYMV was detected in three plants of T. maritimum out of 45 tested, in three plants of S. media out of 52, and in two plants of Trifolium repens out of 17 tested. The virus was successfully transmitted from T. maritimum, S. media and T. repens to indicator plants of Cucurbita pepo convar. giromontiina. Back-transmission of ZYMV was proved by ELISA, electron microscopy and symptoms. T. maritimum was found to be a new natural host of ZYMV.

Keywords: ZYMV; incidence; vegetables; weeds; virus reservoirs; differentiation of strains (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:38:y:2002:i:4:id:4867-pps

DOI: 10.17221/4867-PPS

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