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Transcriptome analysis reveals mechanisms of acetylsalicylic acid-mediated fruit quality maintenance in fresh-cut kiwifruit

文献类型： 外文期刊

作者： Wang, Jian 1 ; Zhu, Jia-zhen 1 ; Liu, Xiao-fen 1 ; Allan, Andrew C. 3 ; Gao, Hai-yan 5 ; Yin, Xue-ren 1 ; Wang, Wen-qiu 1 ;

作者机构： 1.Zhejiang Univ, Zhejiang Prov Key Lab Hort Plant Integrat Biol, Coll Agr & Biotechnol, Zijingang Campus, Hangzhou 310058, Zhejiang, Peoples R China

2.Zhejiang Univ, State Agr Minist Lab Hort Plant Growth Dev & Qual, Hangzhou 310058, Zhejiang, Peoples R China

3.New Zealand Inst Plant & Food Res Ltd, Private Bag 92169, Auckland, New Zealand

4.Univ Auckland, Sch Biol Sci, Private Bag 92019, Auckland, New Zealand

5.Zhejiang Acad Agr Sci, Key Lab Postharvest Handling Fruit, Minist Agr, Key Lab Fruit & Vegetables Postharvest & Proc Tech, Hangzhou 310021, Zhejiang, Peoples R China

关键词： Acetylsalicylic acid; Fresh -cut kiwifruit; Postharvest ripening; Fruit quality maintenance; Transcriptome analysis

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：6.751； 五年影响因子：7.001 ）

ISSN： 0925-5214

年卷期： 2022 年 194 卷

页码：

收录情况： SCI

摘要： Postharvest ripening and processing of fresh-cut (FC) kiwifruit brings quality deterioration and spoilage, including substantial changes in fruit color, texture and flavor. Hence, a series of preservation techniques have emerged to reduce postharvest loss and maintain FC kiwifruit quality. In this study, we evaluated the efficacy of acetylsalicylic acid (ASA), a derivative of plant endogenous hormone salicylic acid, in preserving the quality and delaying the ripening process of FC kiwifruit. Compared to the control fruit, ASA treatment maintained a better fruit appearance and higher fruit firmness, as well as reducing mass loss, total soluble solids and ethylene production. Based on the RNA-seq data and weighted gene co-expression network analysis (WGCNA), eight biosynthetic genes were identified as involved in fruit quality change, which participates in cell wall metabolism, starch degradation/sugar accumulation and ethylene biosynthesis. Moreover, the analysis showed that four transcription factors were significantly induced by exogenous ASA treatment. Dual-luciferase assays proved that ASA-responsive transcription factors regulated fruit quality-related genes, resulting in delaying ripening process and extending the shelf-life of FC kiwifruit. This study showed that ASA effectively delayed the ripening process, and AcWRKY7/AcDOF21/AcC2H2-151/AcbHLH123 are associated with the ASA-mediated fruit quality maintenance.

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