The researches dealt with phenolics in healthy and with Venturia inaequalis infected leave and fruits. The leaf samples were picked in the period from May to September and the fruit samples at technological maturity. Infection with the Venturia inequalis fungus changed the metabolism of phenolics, which caused their increased synthesis at the infected sites of leaves and peel. The peel of fruit and leaves infected with V. inaequalis showed – in comparison to the healthy sample – a more than four-fold increase in chlorogenic acid, up to 3 times more catechin and up to 4 times more epicatechin.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 5862009The aim of the study was to evaluate how the infection with apple scab influences the enzyme activity and the content of phenolics in apple peel. Infection with the Venturia inequalis fungus enhanced the metabolism of phenolics. The higest content of phenolics had infected and tissue around the spot, the lowest content had healthy peel. The highest enzyme activity for PAL, CHS/CHI, DFR, FLS were determined in scab spot. Scab spot showed in comparison to the healthy peel up to 3.4 times more hydroxycinnamic acids, up to 1.1 times more dihydrochalcones and up to 1.4 times more flavan-3-ols.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 5865593