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Brassinolide Alleviates Chilling Injury of Sweet Cherry (Prunus avium L. cv. Tieton) during Cold Storage

文献类型： 外文期刊

作者： Zhu, Yixing 1 ; Zhang, Shuang 1 ; Niu, Chenyu 1 ; Chen, Haobin 1 ; Zhu, Fangyu 1 ; Farouk, Amr 2 ; Lu, Jiancai 3 ; Chen, Cunkun 4 ; Ban, Zhaojun 1 ; Huang, Jun 1 ;

作者机构： 1.Zhejiang Univ Sci & Technol, Zhejiang Prov Collaborat Innovat Ctr Agr Biol Reso, Sch Biol & Chem Engn, Zhejiang Prov Key Lab Chem & Biol Proc Technol Far, Hangzhou 310023, Peoples R China

2.Natl Res Ctr, Flavor & Aroma Chem Dept, Cairo 12622, Egypt

3.Chunan Cty Qiandao Lake Tingyuan Family Farm, Hangzhou 311799, Peoples R China

4.Tianjin Acad Agr Sci, Inst Agr Prod Preservat & Proc Technol, Natl Engn Technol Res Ctr Preservat Agr Prod, Tianjin 300384, Peoples R China

5.Hangzhou FoodSci Agr Technol Co Ltd, Hangzhou, Peoples R China

关键词： sweet cherry; brassinolide; chilling; antioxidant capacity

期刊名称：HORTICULTURAE （ 影响因子：3.1； 五年影响因子：3.1 ）

ISSN：

年卷期： 2024 年 10 卷 7 期

页码：

收录情况： SCI

摘要： Brassinolide (BR) is a natural plant hormone that enhances stress resistance, preserving the freshness and quality of postharvest fruits. This study investigated the effects of exogenous BR on chilling injury, physiological characteristics, and antioxidant capacity in sweet cherries (Prunus avium L. cv. Tieton) during cold storage. Cherries were treated with distilled water (Control, CK), 2 mu molL-1 BR (CL1), and 10 mu molL-1 BR (CL2) for 30 min, then stored at 2 +/- 1 degrees C for 28 d. Sampling occurred every 7 d to assess BR's impact. BR treatment significantly reduced the chilling injury index (28 d values: CK 39.56%, CL1 14.22%, CL2 21.33%) and weight loss index (28 d values: CK 4.07%, CL1 1.00%, CL2 1.77%), and delayed the decline in fruit firmness and quality. Additionally, BR increased the sugar acid ratio, vitamin C, total phenolic, and flavonoid contents while reducing superoxide anion (O-2(-)) and hydrogen peroxide (H2O2) accumulation. Notably, BR significantly lowered polyphenol oxidase (PPO) and peroxidase (POD) activities, with CL1 showing superior efficacy. The findings indicate that BR application can potentially reduce postharvest chilling injury in sweet cherries and maintain their quality after harvest, providing a theoretical basis for its application in sweet cherry storage and preservation.

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