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The first report of Plasmopara halstedii race 337 in the Russian Federation

Author

Listed:
  • Maria Iwebor
  • Tatiana Antonova

    (V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar, Russian Federation)

  • Nina Araslanova

    (V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar, Russian Federation)

  • Svetlana Saukova

    (V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar, Russian Federation)

  • Yulia Pitinova

    (V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar, Russian Federation)

  • Ksenia Eliseeva

    (V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar, Russian Federation)

  • Aleksey Belorutskiy

    (V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krasnodar, Russian Federation)

Abstract

Sunflower downy mildew caused by Plasmopara halstedii (Farl.) Berl. et de Toni is a destructive and widespread disease. More than 50 races of P. halstedii have been recorded worldwide. In 2020, in the Russian Federation (Zernogradsky district, Rostov region), a globally new race 337 was identified for the first time. The pathogen was identified on the plants of a foreign sunflower hybrid bearing the resistance gene Pl6. According to the five-digit racial nomenclature, its virulence profile was determined as 337 53. It is the first P. halstedii race recorded in the Russian Federation that simultaneously infects all differential lines of the 3rd triplet, i.e., HA-R4, HA-R5 and HA-335. The sunflower lines RHA-274, 803-1, PSC8, RHA-419 and RHA-340 were resistant to it. All the collected isolates of the new race were susceptible to the fungicide mefenoxam.

Suggested Citation

  • Maria Iwebor & Tatiana Antonova & Nina Araslanova & Svetlana Saukova & Yulia Pitinova & Ksenia Eliseeva & Aleksey Belorutskiy, 2022. "The first report of Plasmopara halstedii race 337 in the Russian Federation," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 58(1), pages 76-80.
    • Handle: RePEc:caa:jnlpps:v:58:y:2022:i:1:id:85-2021-pps
    DOI: 10.17221/85/2021-PPS
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    References listed on IDEAS

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    1. Katalin Körösi & Attila Kovács & Nisha Nisha & István Bóta & Mihály Perczel & Ahmed Ibrahim Alrashid Yousif & József Kiss & Rita Bán, 2021. "New data on pathotype distribution and mefenoxam tolerance of Plasmopara halstedii in Hungary," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 57(1), pages 31-37.
    2. Michaela Sedlářová & Romana Pospíchalová & Zuzana Drábková Trojanová & Tomáš Bartůšek & Lucie Slobodianová & Aleš Lebeda, 2016. "First Report of Plasmopara halstedii New Races 705 and 715 on sunflower from the Czech Republic - Short Communication," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 52(3), pages 182-187.
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