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Fig. S1 Images of pedunculate oak (Quercus robur) microcuttings.

Fig. S2 Concentrations of hexoses, sucrose and the hexose/sucrose ratio in sink and source leaves, stems, principal and lateral roots of oak (Quercus robur) microcuttings, sorted by flush and treatments.

Fig. S3 Correlation between concentrations of Phytophthora quercina DNA and total soluble sugar or nonstructural carbohydrates (NSC) concentrations in principal roots of oak (Quercus robur) microcuttings at the time point of inoculation (i.e. 7 d before harvest).

Table S1 Number of pedunculate oak (Quercus robur) microcuttings produced for and actually used in the presented study

Table S2 Significance levels of main effects by Piloderma croceum, Phytophthora quercina, flush and their interactions on hexoses, sucrose and the hexose/sucrose ratio of pedunculate oak (Quercus robur) microcuttings

Methods S1 Rearrangement of data on P. quercina DNA and on concentrations of soluble sugars or NSCs in roots of pedunculate oak (Quercus robur) microcuttings, to correlate P. quercina infestation at harvest with estimated data on carbohydrates in roots during inoculation with the pathogen.