文献类型： 外文期刊

作者： Bai, Chunmei ¹ ; Zheng, Yanyan ² ; Watkins, Christopher Brian ³ ; Ma, Lili ¹ ; Jiang, Yuanye ¹ ; Chen, Shaoqing ² ; Wang, Hongwei ² ; He, Xuelian ² ; Han, Lichun ² ; Zhou, Xinyuan ² ; Wang, Qing ² ; Wu, Caie ¹ ; Zuo, Jinhua ² ;

作者机构： 1.Nanjing Forestry Univ, Coll Light Ind & Food Engn, Nanjing 210037, Jiangsu, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Inst Agrifood Proc & Nutr, Beijing Vegetable Res Ctr, Beijing Key Lab Fruits & Vegetable Storage & Proc,, Beijing 100097, Peoples R China

3.Cornell Univ, Coll Agr & Life Sci, Sch Integrat Plant Sci, Hort Sect, Ithaca, NY 14853 USA

关键词： Light-emitting diodes; Transcriptomics; Metabolomics; ATAC-Seq

期刊名称：JOURNAL OF ADVANCED RESEARCH （ 影响因子：13.0； 五年影响因子：11.6 ）

ISSN： 2090-1232

年卷期： 2025 年 67 卷

页码：

收录情况： SCI

摘要： Introduction: Apricot ( Prunus armeniaca L.) fruits are highly perishable and prone to quality deterioration during storage and transportation. Objectives: To investigate the effects of LED white light treatment on postharvest ripening of fruits using metabolomics, transcriptomics, and ATAC-Seq analysis. Methods: Fruits were exposed to 5 l mol m- 2 s-1 LED white light for 12 h followed by 12 h of darkness at 20 degrees C daily for 12 days. The effects of the treatments on the physiological and nutritional quality of the fruits were evaluated. These data were combined with transcriptomic, metabolomic, and ATAC-Seq data from fruits taken on 8 d of treatment to provide insight into the potential mechanism by which LED treatment delays ripening. Results: LED treatment activated pathways involved in ascorbate and aldarate metabolism and flavonoid and phenylpropanoid biosynthesis. Specifically, LED treatment increased the expression of UDP-sugar pyrophosphorylase (USP), L-ascorbate peroxidase (AO), dihydroflavonol 4-reductase (DFR), chalcone synthase (CHS), and caffeoyl-CoA O-methyltransferase (CCOAOMT1), leading to the accumulation of caffeoyl quinic acid, epigallocatechin, and dihydroquercetin and the activation of anthocyanin biosynthesis. LED treat- ment also affected the expression of genes associated with plant hormone signal transduction, fruit tex- ture and color transformation, and antioxidant activity. The notable genes affected by LED treatment included 1-aminocyclopropane-1-carboxylate synthase (ACS), 1-aminocyclopropane-1-carboxylate oxidase (ACO), hexokinase (HK), lipoxygenase (LOX), malate dehydrogenase (MDH), endoglucanase (CEL), various transcription factors (TCP, MYB, EFR), and peroxidase (POD). ATAC-Seq analysis further revealed that LED treatment primarily regulated phenylpropanoid biosynthesis. Conclusion: The results obtained in this study provide insights into the effects of LED light exposure on apricot fruits ripening. LEDs offer a promising approach for extending the shelf life of other fruits and vegetables. (c) 2023 The Authors. Published by Elsevier B.V. on behalf of Cairo University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).