Fig. 2. 2% agarose gel electrophoresis of PCR amplicons generated with the a) AcKS10 L/R and b) BT_HKF/R primers. L: 50 bq DNA ladder, 1: sterilized grape sample, 2: A. carbonarius
5010 positive control, 3: inoculated grape sample with A. carbonarius 5010 conidia, 4e14: natural grape samples. Primer dimer formation appears as a 50 bp by-product in (a).