Abstract
Methyl jasmonate (MeJA) is a plant growth regulator belonging to the jasmonate family. It plays an important role as a possible airborne signaling molecule mediating intra- and inter-plant communications and modulating plant defense responses, including antioxidant systems. Most assessments of this compound have dealt with post-harvest fruit applications, demonstrating induced plant resistance against the detrimental impacts of storage (chilling injuries and pathogen attacks), enhancing secondary metabolites and antioxidant activity. On the other hand, the interactions between MeJA and other compounds or technological tools for enhancing antioxidant capacity and quality of fruits were also reviewed. The pleiotropic effects of MeJA have raisen numerous as-yet unanswered questions about its mode of action. The aim of this review was endeavored to clarify the role of MeJA on improving pre- and post-harvest fresh fruit quality and health properties. Interestingly, the influence of MeJA on human health will be also discussed.
Highlights
Several metabolic processes in plants are regulated by internal signals, such as plant hormones.One of the metabolic processes that plants must regulate is stress tolerance to be able to withstand different types of stress
Similar results were observed for Chinese bayberry fruit, where Methyl jasmonate (MeJA) treatment activated a series of defense responses, including oxidative burst, the accumulation of PR proteins and secondary metabolites, which resulted in enhanced disease resistance in MeJA-treated fruit infected by Penicillium citrinum, reducing decay incidence
Pre- and post-harvest treatments with jasmonates (JAs) and its derivatives can increase the production of secondary metabolites such as anthocyanins, flavonoids, phenolic acids, and other antioxidant molecules, enhancing the fruit quality and post-harvest life, and their human health properties
Summary
Several metabolic processes in plants are regulated by internal signals, such as plant hormones. One of the metabolic processes that plants must regulate is stress tolerance to be able to withstand different types of stress. In this context, phytohormones such as methyl jasmonate (MeJA), part of the jasmonate family, regulate important aspects of plant physiology [1]. Phytohormones such as methyl jasmonate (MeJA), part of the jasmonate family, regulate important aspects of plant physiology [1] These include the antioxidant systems used to ameliorate the oxidative stress induced by all kinds of biotic and abiotic stress [2]. This review endeavors to clarify the role of MeJA on improving pre- and post-harvest fresh fruit quality and health properties
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