Abstract
The paper presents the research data of physical and chemical properties of potato leaf rolling virus isolates in the PEKV and BHK-21 cell cultures. It was shown that in mammalian cell cultures the isolates of potatoes leaf rolling virus were resistant to the action of lipid dissolving agents, cultural media with pH from 4.0 to 10.0 and were thermoresistant at 50 °C in the absence of divalent ions of magnesium. The virus inactivation temperature point along with the optimum temperature for its reproduction were established.
Highlights
Amaranthaceae, Cucurbitaceae, Chenopodiaceae, Brassicaceae, Asteraceae, Lamiaceae, Portulaceae, Nolanaceae, Solanaceae, but the main virus host is potato [3; 4]
Potato leaf rolling virus (PLRV) is common in all countries, where potato is grown
Potato leaf rolling virus affects a wide range of plants belonging to different families: Amaranthaceae, Cucurbitaceae, Chenopodiaceae, Brassicaceae, Asteraceae, Lamiaceae, Portulaceae, Nolanaceae, Solanaceae, but the main virus host is potato
Summary
Amaranthaceae, Cucurbitaceae, Chenopodiaceae, Brassicaceae, Asteraceae, Lamiaceae, Portulaceae, Nolanaceae, Solanaceae, but the main virus host is potato [3; 4]. Different types of crops: tobacco, tomatoes, strawberry tomato and others are susceptible to virus. In the zone of strong harmfulness the prevalence of disease on potatoes is more than 40%, there are frequent epiphytoties. In the area of average harmfulness epiphytoties occur at the intervals of 8-10 years and in the zone of low harmfulness the disease does not exceed 10%. The zone of strong harmfulness brings together the countries of Central Asia, the Caucasus, Kazakhstan, the North Caucasus, the western regions of Ukraine. Average harmfulness is characteristic for Belarus, Moldova, Central Black Earth area, Primorskii Krai, the Baltic countries, Sakhalin, Altai, Nizhnii Novgorod, Ivanovo and Novgorod regions. The issue of harmfulness and prevalence of the virus in different climatic zones of Ukraine remains uncertain.
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