Efficacy loss of strobilurins used in protection against apple scab in Czech orchards

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F13%3A62022" target="_blank" >RIV/60460709:41210/13:62022 - isvavai.cz</a>
Alternative codes found
RIV/62156489:43510/13:00213542 RIV/25271121:_____/13:#0000455
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Efficacy loss of strobilurins used in protection against apple scab in Czech orchards
Original language description
The apple scab caused by Venturia inaequalis is important apple disease in temperate zone. Economical losses caused by the pathogen are effectively reduced by intensive chemical protection and breeding. Occurrences of pathogen resistance to strobilurin fungicides were noted in some Czech orchards in the past. In 2007-2011, collection of 136 isolates V inaequalis was tested with the aim to detect presence of single-point mutations of cytochrom b (cytb) gene causing efficacy loss of strobilurins. Consequently occurrence of beta-tubulin (beta-tub) gene mutation causing resistance to benomyl was studied with the aim to obtain comparative data about frequency of mutation in non-selective environment. Therefore simple and highly repeatable PCR based mutationdetecting methods were optimised. Analysis brought knowledge about high similarity of cytb and beta-tub genes mutations occurrence. Whilst the frequency of the G143A substitution in cytb gene was 65% the E198A substitution of beta-tub ge
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GF - Diseases, pests, weeds and plant protection
OECD FORD branch
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Project
<a href="/en/project/QH71172" target="_blank" >QH71172: Identification of apple scab strains and races (Venturia inaequalis Cke. Wint)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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