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Title: Influence of preharvest calcium, potassium and triazole application on the proteome of apple at harvest
Authors: Buts, Kim ×
Hertog, Maarten
Ho, Quang Tri
America, A.H.P.
Cordewener, Jan
Vercammen, Jef
Carpentier, Sebastien
Nicolai, Bart #
Issue Date: 2016
Publisher: Blackwell Scientific Publ.
Series Title: Journal of the Science of Food and Agriculture vol:96 pages:4984-4993
Abstract: BACKGROUND: Braeburn browning disorder is a storage disease characterised by flesh browning and lens-shaped cavities. The incidence of this postharvest disorder is known to be affected by pre-harvest application of fertilisers and triazole-based fungicides. Recent work has shown that calcium and potassium reduced the incidence of Braeburn browning disorder, while triazoles had the opposite effect. This study addresses the hypothesis of an early proteomic imprint in the apple fruit at harvest induced by the pre-harvest factors applied. If so, this could be used for an early screening of apple fruit at harvest for their postharvest susceptibility to flesh browning.
RESULTS: Calcium and triazole had significant effects, while potassium did not. One hundred and thirty protein families were identified, of which 29 were significantly altered after calcium and 63 after triazole treatment. Up-regulation of important antioxidant enzymeswas correlatedwith calcium fertilisation, while triazole induced alterations in the levels of respiration and ethylene biosynthesis related proteins.
CONCLUSION: Pre-harvest fertiliser and fungicide application had considerable effects on the apple proteome at harvest. These changes, together with the applied storage conditionswill determinewhether or not BBD develops. ©2016 Society of Chemical Industry
ISSN: 0022-5142
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Crop Biotechnics
Division of Mechatronics, Biostatistics and Sensors (MeBioS)
× corresponding author
# (joint) last author

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