Cieplak Magdalena, Terlecka Katarzyna, Ociepa Tomasz, Zimowska Beata, Okoń Sylwia
Institiute of Plant Genetics, Breeding and Biotechnology, University of Life Science, Akademicka 15 Str, 20-950 Lublin, Poland.
Department of Plant Protection, University of Life Sciences, Leszczyńskiego 7 Str, 20-069 Lublin, Poland.
Plant Pathol J. 2021 Apr;37(2):115-123. doi: 10.5423/PPJ.OA.10.2020.0193. Epub 2021 Apr 1.
The purpose of this study was to determine the virulence structure of oat powdery mildew (Blumeria graminis f. sp. avenae, Bga) populations in Poland collected in 2014 and 2015. Powdery mildew isolates were collected from 18 locations in Poland. In total, nine lines and cultivars of oat, with different mildew resistance genes, were used to assess virulence of 180 isolates. The results showed that a significant proportion of the Bga isolates found in Poland were virulent to differentials with Pm1, Pm3, Pm6, and Pm3 + Pm8 genes. In contrast Pm4, Pm5, Pm2, and Pm7 genes were classified as resistant to all pathogen isolates used in the experiment. Based on obtained results we can state that there are differences in virulence pattern and diversity parameters between sites and years, but clear trends are not deducible.
本研究的目的是确定2014年和2015年在波兰采集的燕麦白粉菌（Blumeria graminis f. sp. avenae，Bga）群体的毒力结构。从波兰的18个地点采集了白粉菌分离株。总共使用了9个具有不同抗霉基因的燕麦品系和品种来评估180个分离株的毒力。结果表明，在波兰发现的很大一部分Bga分离株对具有Pm1、Pm3、Pm6和Pm3 + Pm8基因的鉴别寄主具有毒力。相比之下，Pm4、Pm5、Pm2和Pm7基因对实验中使用的所有病原菌分离株均表现为抗性。根据获得的结果，我们可以说，不同地点和年份之间的毒力模式和多样性参数存在差异，但无法推断出明显的趋势。
