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Melatonin and γ-Aminobutyric Acid (GABA) Applied as Pre- or Post-harvest Treatments Affect Vegetable and Fruit Quality Properties and Antioxidant Systems

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: closed (15 April 2024) | Viewed by 592

Special Issue Editors


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Guest Editor
Department of Applied Biology, EPSO, University Miguel Hernández, 03312 Orihuela, Alicante, Spain
Interests: post-harvest; fruit quality; fruit ripening; ethylene; bioactive compounds; antioxidants; eco-friendly technologies; salicylates; polyamines; jasmonates; melatonin; γ-aminobutyric acid (GABA); cut flowers
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Food Technology, EPSO, CIAGRO-University Miguel Hernández, Ctra. Beniel km 3.2, 03312 Orihuela, Alicante, Spain
Interests: postharvest; elicitors; non-contaminant technologies; bioactive compounds; antioxidants; food technology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

γ-Aminobutyric acid (GABA) is a non-protein amino acid composed of four carbons that occurs naturally in both plants and animals. In higher plants, GABA is synthesized from glutamate by the enzyme glutamate decarboxylase and metabolized through the GABA shunt pathway in two consecutive steps: first, oxidation to α-ketoglutarate; second, to succinate to enter the tricarboxylic acid cycle (TCA). Melatonin is synthesised from tryptophan through two different pathways involving the intermediates N-acetyl serotonin and 5-methoxy-tryptamine. Both melatonin and GABA are found in small concentrations in many plant sources, including fruits, vegetables, and cereals, and have many effects on plant development, including the induction of plant resistance to abiotic and biotic stresses through redox balance, osmoprotection and osmotic adjustment effects, among others. In addition, melatonin or GABA pre- or postharvest treatments delay the senescence of horticultural commodities and increase fruit chilling tolerance, leading to fruit quality maintenance during cold storage. In fact, it has been reported that MT treatment effects involve the accumulation of endogenous GABA through the GABA shunt. The present Special Issue will be focused on the effects of GABA or melatonin treatments, applied as post- or pre-harvest treatments, on fruit and vegetable quality traits, with special emphasis on antioxidant systems, both enzymatic and non-enzymatic, and the mechanisms involved in these effects.

Prof. Dr. María Serrano
Prof. Dr. Daniel Valero
Guest Editors

Manuscript Submission Information

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Keywords

  • anthocyanins
  • phenolics
  • firmness
  • colour
  • sugars
  • organic acids
  • taste
  • antioxidant enzymes

Published Papers

There is no accepted submissions to this special issue at this moment.
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