Fig. 2
qRT-PCR analysis of VvMKK gene expression in grape leaves in response to biotic and abiotic stress treatments. a: E. necator (powdery mildew) infection; b: Drought treatment; c: Salicylic acid (SA) treatment; d: Ethanol (ETH) treatment; e: Hydrogen peroxide (H2O2) treatment (for details on treatments see [7]). Relative fold difference was determined in comparison to the normalized relative expression level of mock (untreated) tissues, which was designated as having a value of “1”