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The molecular basis of superficial scald development related to ethylene perception and alpha-farnesene metabolism in 'Wujiuxiang' pear

文献类型： 外文期刊

作者： Zhou, Shuo 1 ; Cheng, Yudou 1 ; Guan, Junfeng 1 ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Genet & Physiol, Shijiazhuang 050051, Peoples R China

2.Plant Genet Engn Ctr Hebei Prov, Shijiazhuang 050051, Peoples R China

关键词： Superficial scald;Ethylene;1-Methylcyclopropene;alpha-Farnesene;Glutathione S-transferase

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：3.463； 五年影响因子：3.672 ）

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收录情况： SCI

摘要： Superficial scald is a major disorder that may occur in pear fruits following long-term cold storage. In this study, harvested Wujiuxiang' pears (Pyrus communis L) were treated with 1.0 mu L/L 1-methylcyclopropene (1-MCP), stored at 0 degrees C for 120 days, and transferred to 25 +/- 2 degrees C for seven days to simulate shelf life. The effects of 1-MCP on scald development, the expression of ethylene perception genes, and alpha-famesene metabolism and the expression of its associated genes were investigated. Compared with the control, 1-MCP reduced the scald index after 120 days of cold storage and during shelf life, suppressed the accumulation of alpha-farnesene and conjugated trienols (CTols), inhibited the expression of PcETR2, PcERS1, PcHMGR2, PcAFS1, PcGPX5, PcGSTU7, and PcGSTU17, and delayed the maximum expression of PcETR1, PcERS2, PcHMGR1, and PcGPX6. These results indicate that 1-MCP regulates the expression of target genes to inhibit ethylene action and alpha-farnesene metabolism, which contributes to slower scald development. These findings suggest that PcGPX5, PcGPX6, PcGSTU7, and PcGSTU17 are involved in CTol accumulation and scald development in 'Wujiuxiang' pear fruit. (C) 2016 Elsevier B.V. All rights reserved.

  • 相关文献

[1]Evidence supporting the involvement of MHO in the formation of superficial scald in Dangshansuli' pears. Hui, Wei,Niu, Junpeng,Xu, Xiaoyan,Guan, Junfeng.

[2]Effects of 1-MCP on reactive oxygen species, polyphenol oxidase activity, and cellular ultra-structure of core tissue in 'Yali' pear (Pyrus bretschneideri Rehd.) during Storage. Dong, Yu,Liu, Liqin,Zhao, Zhe,Guan, Junfeng,Dong, Yu,Zhi, Huanhuan.

[3]Involvement of Pheophytinase in Ethylene-Mediated Chlorophyll Degradation in the Peel of Harvested 'Yali' Pear. Cheng, Yudou,Guan, Junfeng. 2014

[4]Molecular Characterization of Ethylene-Regulated Anthocyanin Biosynthesis in Plums During Fruit Ripening. Cheng, Yudou,Liu, Liqin,Yuan, Can,Guan, Junfeng,Cheng, Yudou,Liu, Liqin,Yuan, Can,Guan, Junfeng.

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