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Sci Rep

Title:		A complex interaction between pre-harvest and post-harvest factors determines fresh-cut melon quality and aroma
Author(s):		Spadafora ND; Cocetta G; Cavaiuolo M; Bulgari R; Dhorajiwala R; Ferrante A; Spinardi A; Rogers HJ; Muller CT;
Address:		"School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX, United Kingdom. Markes International Ltd, Gwaun Elai Medi-Science Campus, Llantrisant, RCT, CF72 8XL, United Kingdom. Department of Agricultural and Environmental Sciences, Universita degli Studi di Milano, Via Celoria 2, 20133, Milano, Italy. Institut de Biologie Physico-Chimique, Paris, France. School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Cardiff, CF10 3AX, United Kingdom. rogershj@cf.ac.uk"
Journal Title:		Sci Rep
Year:		2019
Volume:		20190226
Issue:		1
Page Number:		2745 -
DOI:		10.1038/s41598-019-39196-0
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"Melons are prized for their characteristic aroma, however, pre-harvest growth, stage of ripening at harvest, post-harvest processing and storage conditions lead to quality changes in fresh-cut fruit. We considered changes in metabolites and gene expression over 14 days storage to assess underlying mechanisms and identify potential quality markers. Overall, 99 volatile organic compounds (VOCs) were detected and VOC profiles discriminated between two melon seasons, cut-size, storage temperatures and storage time, although season affected their discriminatory power. Abundance of two VOCs fell rapidly and was not associated with cut size, indicating their use as markers for early changes post-processing. Non-acetate to acetate ester ratio differed between the seasons and correlated with changes in alcohol acyl-transferase (CmAAT1) gene expression. Furthermore, CmAAT1 expression clustered with two ester VOCs that may be potential new products of this enzyme. Season also strongly affected post-harvest sugar content, most likely attributable to meteorological differences during growth. Storage temperature and cut size affected expression of transcription factors ERF71, ERF106, and TINY, whose expression generally rose during storage, probably related to increased stress. Thus, although time x temperature of storage are key factors, pre-harvest conditions and fruit processing impact significantly gene expression and aroma loss post-harvest"
Keywords:		"Cucurbitaceae/growth & development/*metabolism Fruit/growth & development/*metabolism *Gene Expression Regulation, Plant Odorants/*analysis Plant Proteins/genetics/*metabolism Volatile Organic Compounds/analysis/*metabolism;"
Notes:		"MedlineSpadafora, Natasha D Cocetta, Giacomo Cavaiuolo, Marina Bulgari, Roberta Dhorajiwala, Rakhee Ferrante, Antonio Spinardi, Anna Rogers, Hilary J Muller, Carsten T eng Research Support, Non-U.S. Gov't England 2019/02/28 Sci Rep. 2019 Feb 26; 9(1):2745. doi: 10.1038/s41598-019-39196-0"