Maintenance

All wikis at Biowikifarm are in read-only mode due to the restoration after a severe cyberattack in October 2023.
After 1 year being shut down the Biowikifarm is online again.
You see the latest restored version from 18th October 2023.

Journal of Plant Diseases and Protection (2010) 117, 248-252

From Pestinfo-Wiki
Jump to: navigation, search

Pavel Matusinsky, Leona Svobodova-Leisova, Pavel Marik, Ludvik Tvaruzek, Lenka Stemberkova, Martina Hanusova, Vera Minarikova, Marketa Vysohlidova and Tomas Spitzer (2010)
Frequency of a mutant allele of cytochrome b conferring resistance to QoI fungicides in the Czech population of Ramularia collo-cygni
Journal of Plant Diseases and Protection 117 (6), 248-252
Abstract: Ramularia collo-cygni (RCC) is a fungal pathogen infecting both spring and winter barley and causing Ramularia leaf spot (RLS). Fungicides based on strobilurin initially provided one of the best chemical solutions to manage the disease, but resistance in RCC to strobilurin developed quickly. In strobilurin-resistant RCC isolates, a single point mutation is present in the cytochrome b gene. A population of 302 single-spore isolates of RCC, all collected in the Czech Republic in 2009, was analysed using a CAPS marker. The A143 (strobilurin resistant) allele was found in 47% of the isolates. Frequency of the mutant allele was significantly affected by the application frequency of strobilurin fungicides. In locations with more frequent application of strobilurins, the frequency of the allele A143 in RCC isolates was higher (up to 100%). By contrast, in locations where strobilurin fungicides were not used the mutant allele occurred only in 0-5% of the isolates.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Pavel Matusinsky

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Ramularia collo-cygni Barley (Hordeum vulgare) Czech Republic