1. Transcriptome analysis reveals ozone treatment maintains ascorbic acid content in fresh-cut kiwifruit by regulating phytohormone signalling pathways.
- Author
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Wang Y, Rong L, Wang T, Gao S, Zhang S, and Wu Z
- Subjects
- Gene Expression Regulation, Plant drug effects, Transcriptome, Salicylic Acid, Abscisic Acid metabolism, Ozone, Actinidia genetics, Actinidia chemistry, Actinidia metabolism, Ascorbic Acid, Plant Growth Regulators metabolism, Plant Growth Regulators pharmacology, Fruit metabolism, Fruit chemistry, Fruit drug effects, Signal Transduction drug effects, Gene Expression Profiling
- Abstract
Ascorbic acid (AsA) is an indicator of the nutritional value of freshly cut kiwifruit during storage at 4℃, and its degradation can be inhibited after ozone treatment (1 mg/L, 10 min). The aim of this study was to elucidate the regulatory mechanism affecting AsA metabolism in fresh-cut kiwifruit after ozone treatment. In this study, ozone treatment not only prevented the decrease in AsA/dehydroascorbic acid and delayed the accumulation of total soluble solids/titratable acidity, but also altered phytohormone levels differently. Transcriptomic profiling combined with cis-acting element and correlation analysis were performed to reveal that abscisic acid and salicylic acid synergistically delay AsA degradation under ozone-treatment conditions. Actinidia03760, encoding ascorbate peroxidase, could be specifically recognized by the bZIP transcription factor and is considered a key candidate gene for further research. Collectively, ozone treatment is a promising method for preserving AsA content and improving the nutrition of fresh-cut kiwifruit., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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