Ozone mitigates the flesh discoloration in response to 1-methylcyclopro-pene by promoting anthocyanin biosynthesis in postharvest nectarines

文献类型： 外文期刊

第一作者： Zheng, Yanli

作者： Zheng, Yanli;Duan, Lihua;Wang, Haifen;Li, Wenhan;Pan, Na;Wang, Xiaodong;Liang, Fuhao;Li, Xihong;Jiang, Yunbin;Pan, Yanfang;Chen, Lan;Jia, Xiaoyu;Jiang, Yunbin;Chen, Lan;Jia, Xiaoyu;Yang, Xiangzheng;Jia, Xiaoyu;Jia, Xiaoyu

作者机构：

关键词： Nectarine fruit; 1-MCP; Ozone; Anthocyanins biosynthesis; Gene expression

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：4.3； 五年影响因子：4.5 ）

ISSN： 0304-4238

年卷期： 2023 年 321 卷

页码：

收录情况： SCI

摘要： The effects of combined treatments with 1-methylcyclopropene (1-MCP) and ethylene absorbent (EA) or ozone (O3) on the anthocyanins biosynthesis in nectarines stored at 0 degrees C were investigated during the storage period. The results indicated that 1-MCP+EA and 1-MCP+O3 effectively inhibited respiration and ethylene release. 1MCP+EA reduced anthocyanins accumulation and inhibited the red coloration in pulp, whereas 1-MCP+O3 accelerated the red pigmentation. Contrasted to the 1-MCP group, 1-MCP+O3 exhibited higher anthocyanins contents, expression levels of PpPAL1, PpCHS, PpDFR, PpANS, PpUFGT, and PpMYB10.2 and activities of 4-coumarate coenzyme A ligase, flavanone 3-hydroxylase, dihydroflavonol 4-reductase, uridine diphosphate flavonoid 3-O-glucosyltransferase involved in the phenylpropanoid pathway. These results indicated that 1-MCP+O3 promoted the anthocyanins biosynthesis due to the up-regulation of enzymes activities and anthocyanins biosynthetic genes and transcription factor. This study may shed new light on improving quality and color development and optimizing 1-MCP application for postharvest preservation of fruit.

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