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

Gage, Ewan; Falagán, Natalia; Terry,  Leon

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

dc.contributor.author	Gage, Ewan
dc.contributor.author	Falagán, Natalia
dc.contributor.author	Terry, Leon
dc.date.accessioned	2025-01-23T14:09:14Z
dc.date.available	2025-01-23T14:09:14Z
dc.date.issued	2025-01-09
dc.description	Data is provided for floret colour, organic acid and pigment content, and gene expression data for broccoli treated with methyl jasmonate or hydrogen peroxide, and stored at 5 or 10C.
dc.description.abstract	Low-temperature postharvest management is utilised to reduce quality and nutritive losses in broccoli after harvest, although this increases postharvest energy demands 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 for offsetting 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.sponsorship	Biotechnology and Biological Sciences Research Council (BBSRC)
dc.description.sponsorship	Engineering and Physical Sciences Research Council (EPSRC)
dc.identifier.grantnumber	BB/T010819/1
dc.identifier.grantnumber	EP/V042548/1
dc.identifier.uri	https://dspace.lib.cranfield.ac.uk/handle/1826/23358
dc.identifier.uri	https://doi.org/10.57996/cran.ceres-2692
dc.publisher	Cranfield University
dc.relation.supplements	http://dx.doi.org/10.1080/14620316.2024.2449032
dc.rights	Attribution-ShareAlike 4.0 International	en
dc.rights.uri	http://creativecommons.org/licenses/by-sa/4.0/
dc.subject	Hydrogen peroxide
dc.subject	methyl jasmonate
dc.subject	pheophytinase
dc.subject	OPR3
dc.title	Data for "Postharvest stress manipulation in Tenderstem® broccoli – examining the potential for stress-adaptative responses to promote sustainable quality retention"
dc.type	Dataset