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Photosensitization of riboflavin reduces the susceptibility to gray mold in postharvest kiwifruit

文献类型： 外文期刊

作者： Long, Yuhan 1 ; Sun, Yue 1 ; Zhou, Bei 1 ; Zhu, Ge 1 ; Chen, Xiaolong 3 ; Qi, Yongjie 4 ; Wang, Ke 1 ;

作者机构： 1.Anhui Agr Univ, Anhui Engn Res Ctr High Value Utilizat Characteris, Key Lab Jianghuai Agr Prod Fine Proc & Resource Ut, Minist Agr & Rural Affairs, Hefei 230036, Peoples R China

2.One Belt & One Rd Int Joint Res Ctr Hort Prod Qual, Hefei 230036, Peoples R China

3.Jiangsu Acad Agr Sci, State Key Lab Breeding Base, Key Lab Food Qual & Safety Jiangsu Prov, Nanjing 210014, Peoples R China

4.Anhui Acad Agr Sci, Inst Hort, Key Lab Hort Crop Germplasm innovat & Utilizat Coc, Hefei 230001, Peoples R China

关键词： Riboflavin; Photosensitization; Gray mold; Botrytis cinerea; Kiwifruit

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：7.0； 五年影响因子：6.9 ）

ISSN： 0925-5214

年卷期： 2024 年 212 卷

页码：

收录情况： SCI

摘要： Kiwifruits are vulnerable to gray mold, and although the beneficial impacts of riboflavin on plant immunity have been acknowledged, there is a limited exploration into the influence of riboflavin photosensitization on gray mold. The impacts on gray mold susceptibility in postharvest kiwifruit were investigated at 25 degrees C for 8 d, and underlying mechanisms regarding oxidative stress, energy, jasmonic acid (JA), and sugars were evaluated. The morphological results showed that photosensitized riboflavin reduced the severity of gray mold. Biochemical and molecular assays indicated that riboflavin enhanced energy status, JA biosynthesis, glucose accumulation, and ameliorated oxidative stress, irrespective of photosensitization. Notably, photosensitized riboflavin exhibited three distinct effects: heightened impacts on oxidative stress and JA production; sustained electron transport chain activity without energy level increase; delayed early sucrose degradation. Collectively, these findings underscore the pivotal roles played by photosensitization-primed responses involving early stimulation of JA biosynthesis, and compromise of sucrose degradation, in enhancing resistance to gray mold in kiwifruit.

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