Molecular Diagnosis of Thiophanate-Methyl-Resistant Strains of Fusarium fujikuroi in Japan

Fusarium fujikuroi is the pathogen of rice bakanae disease and is subclassified into gibberellin and fumonisin groups (G and F groups). Thiophanate-methyl (TM), a benzimidazole fungicide, has been used extensively to control F. fujikuroi. Previous investigation showed that F-group strains are TM sen...

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Veröffentlicht in:Plant disease. - 1997. - 106(2022), 2 vom: 31. Feb., Seite 634-640
1. Verfasser: Li, Fang Jing (VerfasserIn)
Weitere Verfasser: Komura, Ryoji, Nakashima, Chiharu, Shimizu, Masafumi, Kageyama, Koji, Suga, Haruhisa
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Fusarium fujikuroi LAMP-FLP fungicide resistance mechanism thiophanate-methyl Fumonisins Thiophanate 5Q0Y96D5I8
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520 |a Fusarium fujikuroi is the pathogen of rice bakanae disease and is subclassified into gibberellin and fumonisin groups (G and F groups). Thiophanate-methyl (TM), a benzimidazole fungicide, has been used extensively to control F. fujikuroi. Previous investigation showed that F-group strains are TM sensitive (TMS), whereas most G-group strains are TM resistant (TMR) in Japan. The minimum inhibitory concentration in TMS strains was 1 to 10 μg ml-1, whereas that in TMR strains was >100 μg ml-1. E198K and F200Y mutations in β2-tubulin were detected in TMR strains. A loop-mediated isothermal amplification-fluorescent loop primer method was developed for diagnosis of these mutations and applied to 37 TMR strains and 56 TMS strains. The results indicated that 100% of TMR strains were identified as having either the E198K mutation (41%) or the F200Y mutation (59%), whereas none of the TMS strains tested showed either mutation. We found one remarkable TMR strain in the F group that had an F200Y mutation. These results suggest that E198K and F200Y mutations in β2-tubulin contribute to TM resistance in F. fujikuroi 
650 4 |a Journal Article 
650 4 |a Fusarium fujikuroi 
650 4 |a LAMP-FLP 
650 4 |a fungicide resistance mechanism 
650 4 |a thiophanate-methyl 
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650 7 |a Thiophanate  |2 NLM 
650 7 |a 5Q0Y96D5I8  |2 NLM 
700 1 |a Komura, Ryoji  |e verfasserin  |4 aut 
700 1 |a Nakashima, Chiharu  |e verfasserin  |4 aut 
700 1 |a Shimizu, Masafumi  |e verfasserin  |4 aut 
700 1 |a Kageyama, Koji  |e verfasserin  |4 aut 
700 1 |a Suga, Haruhisa  |e verfasserin  |4 aut 
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856 4 0 |u http://dx.doi.org/10.1094/PDIS-07-21-1501-RE  |3 Volltext 
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