Abstract

Apple fruit contains a wide range of chemical compounds that may contribute to resistance against blue mold caused by Penicillium expansum. In the present study, contents of total titratable acidity, malic acid, total phenols and 10 individual phenolic compounds were quantified in peel and flesh fractions of both control and blue mold-inoculated fruits of 24 apple cultivars. In addition to the significant variation among cultivars in terms of all quantified compounds, correlation analysis revealed a significant impact of total phenols and individual phenols like flavonols and procyanidins B2 in the peel fraction, on blue mold resistance in the inoculated fruits. Multivariate analyses on data for chemical compounds in peel tissue of inoculated fruits, could also separate resistant and susceptible cultivars. These findings can be useful in breeding programs since higher levels of phenolic compounds may indicate better resistance in apple cultivars. (C) 2015 Elsevier B.V. All rights reserved.

Keywords

Disease resistance; Flavonols; Malic acid; Malus domestica; Phenolic compounds; Procyanidin B2

Published in

Postharvest Biology and Technology
2015, Volume: 110, pages: 173-182
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Ahmadi Afzadi, Masoud

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Nybom, Hilde

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Ekholm, Anders

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Tahir, Ibrahim

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Rumpunen, Kimmo

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Horticulture


Publication identifier

DOI: https://doi.org/10.1016/j.postharvbio.2015.08.008

Permanent link to this page (URI)

https://res.slu.se/id/publ/69236