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Benzothiadiazole induces the accumulation of phenolics and improves resistance to powdery mildew in strawberries

Hukkanen, Anne T. ; Kokko, Harri I. ; Buchala, Antony J. ; McDougall, Gordon J. ; Stewart, Derek ; Kärenlampi, Sirpa O. ; Karjalainen, Reijo O.

In: Journal of Agricultural and Food Chemistry, 2007, vol. 55, no. 5, p. 1862 -1870

Benzothiadiazole (BTH) enhanced the accumulation of soluble and cell-wall-bound phenolics in strawberry leaves and also improved the resistance to powdery mildew infection under greenhouse conditions. The most pronounced change was seen in the levels of ellagitannins, which increased up to 2- to 6-fold 4 days after the BTH application, but persisted only in the inoculated plants. The induction of...