Rutin treatment delays postharvest chilling injury in green pepper fruit by modulating antioxidant defense capacity
文献类型： 外文期刊
作者： Bin, Yuqi 1 ; Wu, Xianxin 1 ; Shi, Junyan 1 ; Zhao, Yaqi 1 ; Yue, Xiaozhen 1 ; Xu, Xiaodi 1 ; Zuo, Jinhua 1 ; Yuan, Shuzhi 1 ; Wang, Qing 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Minist Agr & Rural Affairs, Inst Agrifood Proc & Nutr, Beijing Vegetable Res Ctr,Minist Agr,Key Lab Urban, Beijing 100097, Peoples R China
2.Shandong Acad Agr Sci, Inst Agrofood Sci & Technol, Minist Agr & Rural Affairs, Key Lab Novel Food Resources Proc,Key Lab Agroprod, Jinan 250100, Shandong, Peoples R China
3.Chinese Acad Agr Sci, Inst Vegetables & Flowers, State Key Lab Vegetable Biobreeding, Beijing 100081, Peoples R China
关键词： Postharvest quality; Gene expression; Glutathione metabolism; Carotenoid biosynthesis; Amino acid metabolism; Capsicum annuum L.
期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：6.8； 五年影响因子：7.5 ）
ISSN： 0925-5214
年卷期： 2025 年 230 卷
页码：
收录情况： SCI
摘要： Green peppers are highly susceptible to low-temperature stress during postharvest storage, leading to significant quality deterioration. This study aimed to elucidate the molecular mechanisms by which rutin treatment regulates metabolic pathways in green peppers under low-temperature stress. Metabolomics and transcriptomics analyses were employed to investigate the effects of rutin treatment on storage quality, reactive oxygen species (ROS) metabolism, and antioxidant levels in green peppers. Results indicated that rutin treatment maintained higher quality and firmness, suppressed increases in relative electrolyte leakage, O2 center dot- production rate, and H2O2 content, and mitigated chilling injury (CI). According to the transcriptomics and metabolomics analysis, a total of 4232 differentially expressed genes (DEGs) and 1929 differentially abundant metabolites (DAMs) were found to be enriched in peppers treated with rutin compared to the control group after 4 d of storage. The integrated analysis revealed that rutin treatment inhibited the occurrence of CI in green peppers by enhancing glutathione metabolism, carotenoid biosynthesis, and amino acid metabolism. Major genes and metabolites affected by rutin treatment included GGT, GPx, APX, RRM2, CrtB, LUT5, ABA1, NCED, Nit4, NOA1, OAT, HDC, and glutathione, glutathione disulfide, dehydroascorbic acid, zeaxanthin, abscisic acid, abscisic acid glucose ester, aspartate, arginine, proline, and tyrosine. RT-qPCR verification confirmed the altered expression levels of critical genes such as GST, GPx, LUT5, ABA1, ASS1, and OAT. These findings provide a theoretical basis for understanding CI regulation in green peppers and support the application of rutin in postharvest management of fruit and vegetables.
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