Changes in α-Farnesene and Phenolic Metabolism and the Expression of Associated Genes during the Development of Superficial Scald in Two Distinct Pear Cultivars.

ABSTRACT: Superficial scald is a postharvest physiological disorder that occurs in pear during and after cold storage. In this study, the superficial scald index; α-farnesene and its oxidation products, conjugated trienols (CTols); phenolic content; and the expression of its related genes were investigated in two different pear cultivars, 'Wujiuxiang' (Pyrus communis L.) and 'Yali' (Pyrus bretschneideri R.), following 115 days of cold storage at 0 °C followed by 7 days of shelf life at 20 °C. The results indicated that the superficial scald occurred after 115 days of cold storage and became more severe during the shelf life of the 'Wujiuxiang' pear, whereas no scald was observed in 'Yali'. The α-farnesene levels increased rapidly at first and then decreased, while the CTols contents in

SUBMITTER: He J 

PROVIDER: S-EPMC9603056 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature