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J Agric Food Chem

Title:		Volatile Profile and Biosynthesis of Post-harvest Apples are Affected by the Mechanical Damage
Author(s):		Lin M; Chen J; Wu D; Chen K;
Address:		"College of Agriculture & Biotechnology/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology/The State Agriculture Ministry Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Zhejiang University, Zijingang Campus, Hangzhou 310058, P. R. China. Zhejiang University Zhongyuan Institute, Zhengzhou 450000, P. R. China"
Journal Title:		J Agric Food Chem
Year:		2021
Volume:		20210810
Issue:		33
Page Number:		9716 - 9724
DOI:		10.1021/acs.jafc.1c03532
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Mechanical damage to fruit causes flavor changes during post-harvest supply chains. It is important to identify the main volatiles and explore their biosynthesis mechanism. In this study, the volatile changes in apples caused by mechanical damage were analyzed by gas chromatography-ion mobility spectrometry. Hexanal and ethyl acetate were accumulated and identified as potential volatile biomarkers to detect damaged apples. The study on the lipoxygenase (LOX) pathway and transcription factors (TFs) shows that mechanical damage up-regulated the expression of MdLOX-like, MdLOX3b, MdLOX7b, MdLOX7c, MdLOX2a, and MdAAT in the LOX pathway and that of one MYB TF (MdMYB-like), five ERF TFs (MdERF073, MdERF003, MdERF114, MdERF15, and MdERF2), and five WRKY TFs (MdWRKY23, MdWRKY17, MdWRKY46, MdWRKY48, and MdWRKY71). Notably, MdAAT was significantly correlated to MdMYB-like, MdWRKY23, MdWRKY71, MdERF15, and MdERF2. Thus, TFs may attribute to the accumulation of hexanal and ethyl acetate by regulating the expression of LOX pathway-related genes"
Keywords:		Fruit/chemistry/genetics Gas Chromatography-Mass Spectrometry *Malus/genetics Transcription Factors/genetics *Volatile Organic Compounds/analysis apple gene expression lipoxygenase pathway mechanical damage transcription factor volatile;
Notes:		"MedlineLin, Menghua Chen, Jiahui Wu, Di Chen, Kunsong eng 2021/08/11 J Agric Food Chem. 2021 Aug 25; 69(33):9716-9724. doi: 10.1021/acs.jafc.1c03532. Epub 2021 Aug 10"