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A comprehensive insight on the main physiological biochemical and related genes expression changes during the development of superficial scald in "Yali" pear

文献类型： 外文期刊

作者： He, Jingang 1 ; Feng, Yunxiao 1 ; Cheng, Yudou 1 ; Wang, Meng 3 ; Guan, Junfeng 1 ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Biotechnol & Food Sci, Shijiazhuang, Peoples R China

2.Key Lab Hebei Plant Genet Engn Ctr, Shijiazhuang, Peoples R China

3.Beijing Acad Agr & Forestry Sci, Inst Qual Stand & Testing Technol, Beijing, Peoples R China

关键词： pear; superficial scald; phenolics; alpha-farnesene; ethylene

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）

ISSN： 1664-462X

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Superficial scald is a serious physiological disorder in "Yali " pear (Pyrus bretschneideri Rehd. cv. Yali) after long-term cold storage. Changes in superficial scald, ethylene production, alpha-farnesene and phenylpropane metabolism with associated gene expression in "Yali " pear treated with and without (control) 1-methylcyclopropene (1-MCP) were investigated. Compared with the control group (without 1-MCP), 1-MCP (1.0 mu l L-1) significantly lowered the superficial scald index after 180 days of cold storage. During cold storage and shelf life, the contents of alpha-farnesene, conjugated trienols, chlorogenic acid, and epicatechin in the peel were reduced, while quercetin was enhanced in 1-MCP-treated fruit, and the expression of genes associated with ethylene synthesis (ACS1, ACO1), receptors (ETR2, ERS1) and signal transduction (ERF1), alpha-farnesene metabolism (AFS1, HMGR2, GST7), phenolic biosynthesis (PAL1, C4H1, C4H2, HCT3, 4CL2, C3H), and oxidases (PPO1, PPO5, and LAC7) were significantly downregulated by 1-MCP. These results suggested that the onset and development of superficial scald was closely related to the ethylene receptor, conjugated trienols, chlorogenic acid and epicatechin and related genes expression in "Yali " pear.

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