Induced resistance to control postharvest decay of fruit and vegetables

Background As universal energy currency, intracellular ATP (iATP) shortages in horticultural crops during postharvest stresses and senescence. In addition to function as intracellular energy currency, ATP serves as friendly extracellular signaling molecule (eATP). Scope and approach Postharvest treatments attenuate stresses, delay senescence and maintain quality in horticultural crops by ensuring sufficient iATP supplying, which was accompanied with lower phospholipase D (PLD) and lipoxygenase (LOX) enzymes activity concomitant with higher antioxidant system activity which along with higher heat shock proteins (HSPs) accumulation resulting in lower reactive oxygen species (ROS) accumulation leading to higher membrane unsaturated/saturated fatty acids (unSFA/SFA), higher shikimate and phenylpropanoid pathways activity revealing by higher phenylalanine ammonia lyase (PAL) enzyme activity leading to higher phenols accumulation, higher endogenous proline and glycine betaine accumulation, higher endogenous polyamines accumulation, and higher pathogenesis (PRs) proteins accumulation, which are crucial for membrane fluidity and integrity maintaining and cell wall fortification. In addition to intracellular energy currency, friendly eATP signaling is crucial for promoting iATP biosynthesis machinery activity and reinforcing defense response by triggering jasmonic and salicylic acids signaling pathways. Also, friendly eATP signaling not only is crucial for regulating stomatal closure which is pivotal for attenuating stresses and delaying senescence in horticultural crops but also is crucial for postharvest biofactories representing high phenols accumulating fresh horticultural crops in response to abiotic stresses which are beneficial for human health. Key findings and conclusions Ensuring sufficient iATP supplying and friendly eATP signaling would be crucial for attenuating stresses, delaying senescence and maintaining quality in horticultural crops during postharvest life.

Ensuring sufficient intracellular ATP supplying and friendly extracellular ATP signaling attenuates stresses, delays senescence and maintains quality in horticultural crops during postharvest life

Glycine betaine reduces chilling injury in peach fruit by enhancing phenolic and sugar metabolisms.

Melatonin treatment maintains nutraceutical properties of pomegranate fruits during cold storage.

Edible coatings and antimicrobial nanoemulsions for enhancing shelf life and reducing foodborne pathogens of fruits and vegetables: A review

Effect of postharvest acibenzolar-S-methyl dipping on phenylpropanoid pathway metabolism in muskmelon (Cucumis melo L.) fruits

Postharvest ASM dipping and DPI pre-treatment regulated reactive oxygen species metabolism in muskmelon (Cucumis melo L.) fruit

G6PDH regulated NADPH production and reactive oxygen species metabolism to enhance disease resistance against blue mold in apple fruit by acibenzolar-S-methyl

γ-Aminobutyric acid delays senescence of blueberry fruit by regulation of reactive oxygen species metabolism and phenylpropanoid pathway

Jujube fruit was treated with melatonin to evaluate the changes of quality parameters, anti-oxidative ability and cell wall-degrading enzymes activities during room temperature storage. The results showed that melatonin treatment significantly inhibited respiratory rate and ethylene release of jujubes. Melatonin treatment also delayed the changes of color and sustained titratable acidity. Moreover, melatonin treatment increased the activities of glutathione reductase, ascorbate peroxidase and monodehydroascorbate reductase, and enhanced ascorbic acid, dehydroascorbic acid and reduced glutathione contents in jujubes. In addition, application of melatonin delayed fruit softening by inhibiting the activities of pectin methylesterase, polygalacturonase, cellulose and β-glucosidase and production of water soluble pectin and maintaining water insoluble pectin content. All these results indicate that application of melatonin after harvest could delay fruit softening, improve anti-oxidative capacity, and thus delay fruit senescence of jujubes.

Exogenous application of melatonin maintains storage quality of jujubes by enhancing anti-oxidative ability and suppressing the activity of cell wall-degrading enzymes

Canying Li

Papers

Effect of postharvest acibenzolar-S-methyl dipping on phenylpropanoid pathway metabolism in muskmelon (Cucumis melo L.) fruits

Postharvest ASM dipping and DPI pre-treatment regulated reactive oxygen species metabolism in muskmelon (Cucumis melo L.) fruit

G6PDH regulated NADPH production and reactive oxygen species metabolism to enhance disease resistance against blue mold in apple fruit by acibenzolar-S-methyl

γ-Aminobutyric acid delays senescence of blueberry fruit by regulation of reactive oxygen species metabolism and phenylpropanoid pathway

Exogenous application of melatonin maintains storage quality of jujubes by enhancing anti-oxidative ability and suppressing the activity of cell wall-degrading enzymes