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Fig. 3 | BMC Plant Biology

Fig. 3

From: Rpv3–1 mediated resistance to grapevine downy mildew is associated with specific host transcriptional responses and the accumulation of stilbenes

Fig. 3

Induction of programmed cell death at the Plasmopara viticola infection site. Leaf discs of a susceptible cultivar (a, c, e) and an Rpv3–1 cultivar (b, d, f) were inoculated with the avirulent (avrRpv3+) P. viticola isolate and samples were taken at 24 hpi (a, b) and 32 hpi (c, d). Leaf discs were inoculated with the virulent (avrRpv3ˉ) P. viticola isolate and samples were collected at 48 hpi (e, f). Abbreviations: st, stomata; z, encysted zoospore; ph, primary hyphae; asterisks indicate trypan blue-stained cells undergoing PCD in response to P. viticola infection. Images are representative of three biological replicates. Scale bars correspond to 50 μm

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