Development of Boscalid Resistance in Botrytis cinerea and an Efficient Strategy for Resistance Management

Among succinate dehydrogenase inhibitors, only boscalid has been registered in China for controlling gray mold. In Shandong Province of China, it has been more than a decade since the first use of boscalid to control gray mold. In the current study, we monitored the resistance development process of...

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Veröffentlicht in:Plant disease. - 1997. - 105(2021), 4 vom: 04. Apr., Seite 1042-1047
1. Verfasser: Cui, Kaidi (VerfasserIn)
Weitere Verfasser: He, Leiming, Li, Tongtong, Mu, Wei, Liu, Feng
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article boscalid dipping fruit gray mold resistance Biphenyl Compounds Fungicides, Industrial Niacinamide 25X51I8RD4 2-chloro-N-(4-chlorobiphenyl-2-yl)nicotinamide 32MS8ZRD1V
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520 |a Among succinate dehydrogenase inhibitors, only boscalid has been registered in China for controlling gray mold. In Shandong Province of China, it has been more than a decade since the first use of boscalid to control gray mold. In the current study, we monitored the resistance development process of Botrytis cinerea to boscalid, identified the mutation types that occurred in boscalid-resistant isolates, and proposed an original application technique to delay resistance development. A total of 720 B. cinerea isolates collected from tomato and cucumber in Shandong Province from 2014 to 2019 were determined to be sensitive to boscalid. The results showed that the sensitivity of the B. cinerea isolates to boscalid declined gradually over time, with a mean half maximal effective concentration of 0.3 ± 0.02 mg/liter in 2014 and 6.39 ± 1.66 mg/liter in 2019. The proportion of resistant isolates quickly increased from 0.81% in 2014 to 28.97% in 2019. Mutations of P225F, N230I, H272Y, and H272R in the SdhB subunit were responsible for boscalid resistance. Four concurrent mutations (G85A, I93V, M158V, and V168I) in the SdhC subunit were first discovered in Shandong Province, but they did not affect the level of boscalid resistance. Interestingly, this study found that the fruit dipping application, a precise topical application technique, could delay the development of boscalid resistance. Therefore, this application technique provides a new method for resistance management of B. cinerea 
650 4 |a Journal Article 
650 4 |a boscalid 
650 4 |a dipping fruit 
650 4 |a gray mold 
650 4 |a resistance 
650 7 |a Biphenyl Compounds  |2 NLM 
650 7 |a Fungicides, Industrial  |2 NLM 
650 7 |a Niacinamide  |2 NLM 
650 7 |a 25X51I8RD4  |2 NLM 
650 7 |a 2-chloro-N-(4-chlorobiphenyl-2-yl)nicotinamide  |2 NLM 
650 7 |a 32MS8ZRD1V  |2 NLM 
700 1 |a He, Leiming  |e verfasserin  |4 aut 
700 1 |a Li, Tongtong  |e verfasserin  |4 aut 
700 1 |a Mu, Wei  |e verfasserin  |4 aut 
700 1 |a Liu, Feng  |e verfasserin  |4 aut 
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773 1 8 |g volume:105  |g year:2021  |g number:4  |g day:04  |g month:04  |g pages:1042-1047 
856 4 0 |u http://dx.doi.org/10.1094/PDIS-05-20-1009-RE  |3 Volltext 
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