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- W2159513718 abstract "Fleshy fruits develop from an unripe organ that needs to be protected from damage to a ripe organ that attracts frugivores for seed dispersal through production of volatile organic compounds (VOCs). Thus, different responses to wounding damage are predicted. The aim of this study was to discover whether wound-induced changes in the transcriptome and VOC production alter as tomato transitions from unripe to ripe. Transcript changes were analysed 3h post-wounding using microarray analysis in two commercial salad-tomato (Solanum lycopersicum L.) cultivars: Luna Rossa and AVG, chosen for their high aroma production. This was followed by quantitative PCR on Luna Rossa genes involved in VOC biosynthesis and defence responses. VOCs elicited by wounding at different ripening stages were analysed by solid phase micro extraction and gas chromatography–mass spectrometry. Approximately 4000 differentially expressed genes were identified in the cultivar AVG and 2500 in Luna Rossa. In both cultivars the majority of genes were up-regulated and the most affected pathways were metabolism of terpenes, carotenoids, and lipids. Defence-related genes were mostly up-regulated in immature stages of development, whereas expression of genes related to VOCs changed at riper stages. More than 40 VOCs were detected and profiles changed with ripening stage. Thus, both transcriptome and VOC profiles elicited by wounding depend on stage of ripening, indicating a shift from defence to attraction." @default.
- W2159513718 created "2016-06-24" @default.
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- W2159513718 date "2015-01-22" @default.
- W2159513718 modified "2023-09-29" @default.
- W2159513718 title "Wounding tomato fruit elicits ripening-stage specific changes in gene expression and production of volatile compounds" @default.
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- W2159513718 doi "https://doi.org/10.1093/jxb/eru516" @default.
- W2159513718 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4339607" @default.
- W2159513718 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25614658" @default.
- W2159513718 hasPublicationYear "2015" @default.
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