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Influence of pre‐harvest calcium, potassium and triazole application on the proteome of apple at harvest
Author(s) -
Buts Kim,
Hertog Maarten LATM,
Ho Quang Tri,
America Antoine HP,
Cordewener Jan,
Vercammen Jef,
Carpentier Sebastien C,
Nicolai Bart
Publication year - 2016
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7664
Subject(s) - postharvest , fungicide , calcium , browning , potassium , chemistry , horticulture , flesh , biology , agronomy , organic chemistry
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 enzymes was correlated with 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 conditions will determine whether or not BBD develops. © 2016 Society of Chemical Industry