*3.5. Fungal Strain and Culture Conditions*

The strain G29 of *B. cinerea* used in this work was isolated from infected grapes (*Vitis vinifera*) and genetically characterized by the INIA, La Platina, Chile [45]. It was kept on malt yeast extract agar slants with 0.2% (*w*/*v*) yeast extract, 2% (*w*/*v*) malt extract, and 1.5% (*w*/*v*) agar) at 4 ◦C. For the cell wall integrity assay, liquid minimal medium of pH 6.5 was used, containing KH2PO4 (1 g/L), MgSO4·7H2O (0.5 g/L), KCl (0.5 g/L), K2HPO4 (0.5 g/L), FeSO4·7H2O (0.01 g/L),1% (*w*/*v*) glucose as a carbon source, and 4.6 g/L ammonium tartrate as a nitrogen source.
