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J Sci Food Agric. 2019 Mar 15;99(4):1519-1524. doi: 10.1002/jsfa.9326. Epub 2018 Oct 19.

Changes in the sucrose metabolism in apple fruit following postharvest acibenzolar-S-methyl treatment.

Author information

1
Food Safety Key Lab of Liaoning Province, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, College of Food Science and Technology, Bohai University, Jinzhou, China.
2
College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin, China.

Abstract

BACKGROUND:

Apple (cv. Ralls) fruit were treated with 0.1 g L-1 acibenzolar-S-methyl (ASM) for 10 min to evaluate the changes in enzyme activity and gene expression in the sucrose metabolism during storage at 20 °C with 30%-40% relative humidity.

RESULTS:

The results showed that sucrose phosphate synthase (SPS) and sucrose synthase synthesis (SS-s) activity was enhanced by ASM in apple fruit during the entire storage period. Sucrose synthase-cleavage (SS-c) and neutral invertase (NI) activity was suppressed by ASM treatment but acid invertase (AI) activity was increased in the middle period after ASM treatment. Acibenzolar-S-methyl treatment also significantly inhibited SPS and NI gene expression in apple fruit during storage. However, SS gene expression increased in the ASM-treated apple fruit. High levels of expression of the fructokinase (FK) and hexokinase (HK) genes were observed during the middle storage period in the ASM-treated fruit.

CONCLUSION:

Taken together, these results suggest that ASM delays the senescence of apple fruit by regulating the sugar metabolism. © 2018 Society of Chemical Industry.

KEYWORDS:

Malus domestica; acibenzolar-S-methyl; sucrose phosphate synthase, sucrose synthase

PMID:
30142245
DOI:
10.1002/jsfa.9326
[Indexed for MEDLINE]

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