Host perception and signal transduction studies in wild-type Blumeria graminis f. sp. hordei and a quinoxyfen-resistant mutant implicate quinoxyfen in the inhibition of serine esterase activity.
BACKGROUND: Quinoxyfen is a potent and effective fungicide, hitherto considered to control powdery mildew disease by perturbing signal transduction during early germling differentiation. The aim of this paper is to understand the mode of action of quinoxyfen by comparing the perception of host-derived signals and signal relay in a wild-type Blumeria graminis f. sp. hordei EM Marchal (Bgh) (WT/IM82) and a quinoxyfen-resistant field isolate (QR/2B11). RESULTS: QR/2B11 germinates more promiscuo...Expand abstract
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