Postharvest stress manipulation in Tenderstem® broccoli – examining the potential for stress-adaptative responses to promote sustainable quality retention

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dc.contributor.authorGage, Ewan
dc.contributor.authorTerry, Leon A.
dc.contributor.authorFalagán, Natalia
dc.date.accessioned2025-02-24T13:15:26Z
dc.date.available2025-02-24T13:15:26Z
dc.date.freetoread2025-02-24
dc.date.issued2025-12-31
dc.date.pubOnline2025-01-27
dc.description.abstractLow temperature postharvest management is used to reduce quality and nutritive losses in broccoli after harvest, although this increases postharvest energy demand and the environmental impacts of food supply chain. Hydrogen peroxide (H2O2) and methyl jasmonate (MeJA) have been shown to reduce postharvest yellowing in broccoli by enhancing oxidative stress resistance and were examined as treatments for Tenderstem® broccoli florets to offset the effects of warmer storage temperatures. H2O2 elicitation was perceived on a regulatory level through activation of the jasmonate pathway, but did not reduce postharvest yellowing. MeJA treatment was detrimental to quality, even at concentrations shown to be beneficial for conventional broccoli varieties. Carotenoid accumulation was shown to be a leading factor in Tenderstem® yellowing during early storage, while photopigment degradation contributed to late stage quality loss. The physiological basis for floret yellowing in Tenderstem® was also shown to be due to carotenoid accumulation rather than chlorophyll loss. These results highlight the impact of genotypic and developmental effects on stress perception and response, which hinder optimisation of hormesis-based approaches for postharvest management.
dc.description.journalNameThe Journal of Horticultural Science and Biotechnology
dc.description.sponsorshipFunding for this work was provided through the Horticulture Quality and Food Loss Network under the Biotechnology and Biological Sciences Research Council grant BB/T010819/1 and the Engineering and Physical Sciences Research Council project EP/V042548/1
dc.identifier.citationGage E, Terry LA, Falagán N. (2025) Postharvest stress manipulation in Tenderstem® broccoli – examining the potential for stress-adaptative responses to promote sustainable quality retention. The Journal of Horticultural Science and Biotechnology, Available online 27 January 2025
dc.identifier.eissn2380-4084
dc.identifier.elementsID563537
dc.identifier.issn1462-0316
dc.identifier.urihttps://doi.org/10.1080/14620316.2024.2449032
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23507
dc.languageEnglish
dc.language.isoen
dc.publisherTaylor and Francis
dc.publisher.urihttps://www.tandfonline.com/doi/full/10.1080/14620316.2024.2449032
dc.relation.isreferencedbyhttps://doi.org/10.57996/cran.ceres-2692
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectHydrogen peroxide
dc.subjectmethyl jasmonate
dc.subjecttemperature
dc.subjectOPR3
dc.subjectpheophytinase
dc.subject30 Agricultural, Veterinary and Food Sciences
dc.subject3008 Horticultural Production
dc.subjectBiotechnology
dc.subject3001 Agricultural biotechnology
dc.subject3008 Horticultural production
dc.subject3108 Plant biology
dc.titlePostharvest stress manipulation in Tenderstem® broccoli – examining the potential for stress-adaptative responses to promote sustainable quality retention
dc.typeArticle
dc.type.subtypeJournal Article
dcterms.dateAccepted2024-12-23

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