1. Methyl jasmonate advances fruit ripening, colour development, and improves antioxidant quality of 'Yoho' and 'Jiro' persimmon.
- Author
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Hasan MU, Singh Z, Shah HMS, Woodward A, and Afrifa-Yamoah E
- Subjects
- Plant Proteins metabolism, Phenols metabolism, Phenols analysis, Plant Growth Regulators pharmacology, Plant Growth Regulators metabolism, Flavonoids analysis, Flavonoids metabolism, Superoxide Dismutase metabolism, Chlorophyll metabolism, Chlorophyll analysis, Carotenoids metabolism, Carotenoids analysis, Oxylipins pharmacology, Oxylipins metabolism, Antioxidants metabolism, Cyclopentanes pharmacology, Cyclopentanes metabolism, Fruit chemistry, Fruit growth & development, Fruit metabolism, Fruit drug effects, Acetates pharmacology, Acetates metabolism, Color, Diospyros chemistry, Diospyros growth & development, Diospyros metabolism
- Abstract
Methyl jasmonate (MJ) has potential to regulate fruit ripening and quality. 'Yoho' and 'Jiro' persimmons were sprayed with MJ (0, 2, 4, and 6 mM), four weeks before anticipated harvest to evaluate its effects on fruit colour and bioactive compounds. Preharvest MJ application significantly improved fruit colour with increased a*, b*, chroma, and colour index. The MJ 6 mM application had significantly enhanced soluble solids content (SSC), reduced total chlorophyll content in peel and pulp, and soluble and total tannins in persimmons. MJ treatments exhibited higher contents of total phenolics, flavonoids, carotenoids, and antioxidant activities. Additionally, MJ treatments enhanced the activities of shikimate dehydrogenase (SKDH), phenylalanine ammonia-lyase (PAL), catalase (CAT), superoxide dismutase (SOD), peroxidase (POD) and lipoxygenase (LOX) enzymes. Overall, pre-harvest MJ application at 6 mM four weeks before anticipated harvest could be useful for advancing colour and improving bioactive compounds in 'Yoho' and 'Jiro' persimmons., 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 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2024
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