Characterization of Phytophthora infestans isolates in the Czech Republic in 2005.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F06%3A18536" target="_blank" >RIV/60460709:41210/06:18536 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

Charakteristika izolátů Phytophthora infestans v ČR v roce 2005.

Original language description

Late blight is a worldwide spread and economically important disease of potato and tomato crops. The causal agent Phytophthora infestans (Mont.) de Bary (1876) is able to reproduce by both asexual and sexual ways. This ability influences genetic diversity of pathogen populations, new developing races could complicate used plant protection methods. Collection of 186 isolates of P. infestans created in 2005 was used for determination of basic markers as mating types, resistance to metalaxyl and dimethomorph and haplotypes of mitochondrial DNA (mtDNA). A1 and A2 mating types were determined by pairing of A1 and A2 testers and unknown isolate on medium in Petri dishes and by CAPs method. 114 isolates were determined as A1 mating type and 69 isolates as A2mating type. Resistance tests to systemic fungicides (metalaxyl, dimethomorph) were performed by in vitro test on agar completed by different concentrations of active substance. All tested isolates were sensitive to both used fungicide su

Czech name

Charakteristika izolátů Phytophthora infestans v ČR v roce 2005.

Czech description

Late blight is a worldwide spread and economically important disease of potato and tomato crops. The causal agent Phytophthora infestans (Mont.) de Bary (1876) is able to reproduce by both asexual and sexual ways. This ability influences genetic diversity of pathogen populations, new developing races could complicate used plant protection methods. Collection of 186 isolates of P. infestans created in 2005 was used for determination of basic markers as mating types, resistance to metalaxyl and dimethomorph and haplotypes of mitochondrial DNA (mtDNA). A1 and A2 mating types were determined by pairing of A1 and A2 testers and unknown isolate on medium in Petri dishes and by CAPs method. 114 isolates were determined as A1 mating type and 69 isolates as A2mating type. Resistance tests to systemic fungicides (metalaxyl, dimethomorph) were performed by in vitro test on agar completed by different concentrations of active substance. All tested isolates were sensitive to both used fungicide su

Type

D - Article in proceedings

CEP classification

GF - Diseases, pests, weeds and plant protection

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Sborník příspěvků z XVII. české a slovenské konference o cohraně rostlin

ISBN

80-213-1564-4

ISSN

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e-ISSN

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Number of pages

5

Pages from-to

276-280

Publisher name

ČZU v Praze

Place of publication

Praha

Event location

ČZU v Praze

Event date

Sep 12, 2006

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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