Melatonin treatment delays the softening of blueberry fruit by modulating cuticular wax metabolism and reducing cell wall degradation

被引：40

作者：

Liu, Ruiling ^{[1
]}

Shang, Fanchen ^{[1
]}

Niu, Ben ^{[1
]}

Wu, Weijie ^{[1
]}

Han, Yanchao ^{[1
]}

Chen, Hangjun ^{[1
]}

Gao, Haiyan ^{[1
]}

机构：

[1] Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Key Lab Post Harvest Handling Fruits, Minist Agr & Rural Affairs,Key Lab Postharvest Pre, Hangzhou, Peoples R China

来源：

FOOD RESEARCH INTERNATIONAL | 2023年 / 173卷

关键词：

Melatonin; Blueberry fruit; Cuticular wax; Cell wall metabolism; AMINOBUTYRIC-ACID; POSTHARVEST; ETHYLENE; QUALITY; ANTIOXIDANTS; IRRADIATION; SENESCENCE; MORPHOLOGY; PLANTS;

D O I：

10.1016/j.foodres.2023.113357

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The effects of postharvest melatonin (MT) treatment on cuticular wax and cell wall metabolism in blueberry fruit (Vaccinium spp.) were evaluated. The results revealed that MT treatment maintained the cuticular wax rod-like structure and delayed wax degradation. The gas chromatography-mass spectrometry analysis results revealed that MT application changed the cuticular wax composition in blueberries, and 25 metabolic components were screened. The metabolic regulation of wax quality in blueberry fruit may therefore be influenced by MT. Additionally, MT slowed down pectin and cellulose degradation by reducing the activities of cell wall degrading enzymes like pectin methyl esterase polygalacturonase, f-galactosidase, and cellulose in the later stages of storage. It also downregulated the transcriptional expression of related genes like VcPE, VcPG, VcBG6, and VcGAL1. Thus, MT prevented softening and senescence by postponing the degradation of the cell wall in postharvest blueberry fruit.

引用

页数：11

共 37 条

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