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Cytochrome b Mutations F129L and G143A Confer Resistance to Azoxystrobin in Cercospora nicotianae, the Frogeye Leaf Spot Pathogen of Tobacco.

Plant disease - 1 Jun 2020

Dixon Edward, Barlow William, Walles Grant, Amsden Bernadette, Hirsch R Louis, Pearce Robert, Pfeufer Emily E

Abstract excerpt

Azoxystrobin is the only synthetic, systemic fungicide labeled in the United States for management of frogeye leaf spot (FLS) of tobacco (Nicotiana tabacum L.), caused by Cercospora nicotianae. Though traditionally considered a minor disease in the United States, FLS has recently become yield and quality limiting. In 2016 and 2017, 100 C. nicotianae isolates were collected from symptomatic tobacco from eight...

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PMID: 32282279
DOI: 10.1094/PDIS-02-19-0382-RE

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