Effects of trans-2-hexenal and cis-3-hexenal on post-harvest strawberry.

Abstract

Green leaf volatiles are emitted by green plants and induce defence responses. Those with antifungal activities in plants may replace chemicals as natural post-harvest treatments. We investigated the postharvest treatment of strawberry with trans-2-hexenal and cis-3-hexenal and observed a decrease in the mould infection rate. To determine the volatiles' functions, we conducted a component analysis of the volatiles released from trans-2-hexenal-treated strawberry and analysed gene expression. Several acetates, which were expected to be metabolites of trans-2-hexenal in fruit, were released from treated strawberry; however, these acetates did not inhibit fungal growth. The gene expression analysis suggested that postharvest strawberries were not protected by jasmonic acid-mediated signalling but by another stress-related protein. Harvested strawberries experience stress induced by harvest-related injuries and are unable to perform photosynthesis, which might result in different responses than in normal plants.

• Authors: Junko Wakai, Shoko Kusama, Kosuke Nakajima, Shikiho Kawai, Yasuaki Okumura, Kaori Shiojiri
• Journal: Scientific reports (Sci Rep) Vol. 9 Issue 1 Pg. 10112 (07 12 2019) ISSN: 2045-2322 [Electronic] England
• PMID: 31300659 (Publication Type: Journal Article)

Chemical References

• Aldehydes
• Antifungal Agents
• Cyclopentanes
• Oxylipins
• Volatile Organic Compounds
• 3-hexenal
• 2-hexenal
• jasmonic acid

Topics

• Aldehydes (pharmacology)
• Antifungal Agents (pharmacology)
• Botrytis (drug effects, growth & development, pathogenicity)
• Cyclopentanes (analysis)
• Food Microbiology
• Fragaria (drug effects, genetics, microbiology)
• Fruit (drug effects, genetics, microbiology)
• Gene Expression Regulation, Plant (drug effects)
• Oxylipins (analysis)
• Volatile Organic Compounds (analysis)