BTH Treatment Delays the Senescence of Postharvest Pitaya Fruit in Relation to Enhancing Antioxidant System and Phenylpropanoid Pathway
| Autor: | Xiaoyang Zhu, Xuewu Duan, Xiaochun Ding, Shuangling Xiao, Wang Zheng, Fengjun Li |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Health (social science) Antioxidant pitaya medicine.medical_treatment Glutathione reductase Plant Science lcsh:Chemical technology 01 natural sciences Health Professions (miscellaneous) Microbiology Article 040501 horticulture Lipid peroxidation chemistry.chemical_compound ROS metabolism medicine lcsh:TP1-1185 Food science biology Phenylpropanoid Chemistry food and beverages BTH 04 agricultural and veterinary sciences Glutathione phenylpropanoid pathway Ascorbic acid Catalase biology.protein 0405 other agricultural sciences 010606 plant biology & botany Food Science Peroxidase |
| Zdroj: | Foods Volume 10 Issue 4 Foods, Vol 10, Iss 846, p 846 (2021) |
| ISSN: | 2304-8158 |
| Popis: | The plant resistance elicitor Benzo (1, 2, 3)-thiadiazole-7-carbothioic acid S-methyl ester (BTH) can enhance disease resistance of harvested fruit. Nonetheless, it is still unknown whether BTH plays a role in regulating fruit senescence. In this study, exogenous BTH treatment efficiently delayed the senescence of postharvest pitaya fruit with lower lipid peroxidation level. Furthermore, BTH-treated fruit exhibited lower hydrogen peroxide (H2O2) content, higher contents of reduced ascorbic acid (AsA) and reduced glutathione (GSH) levels and higher ratios of reduced to oxidized glutathione (GSH/GSSG) and ascorbic acid (AsA/DHA), as well as higher activities of ROS scavenging enzymes, including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), peroxidase (POD) and glutathione reductase (GR) in comparison with control fruit. Moreover, BTH treatment enhanced the activities of phenylpropanoid pathway-related enzymes, including cinnamate-4-hydroxylase (C4H), phenylalanine ammonia-lyase (PAL) and 4-coumarate/coenzyme A ligase (4CL) and the levels of phenolics, flavonoids and lignin. In addition, BTH treatment upregulated the expression of HuSOD1/3/4, HuCAT2, HuAPX1/2 and HuPOD1/2/4 genes. These results suggested that application of BTH delayed the senescence of harvested pitaya fruit in relation to enhanced antioxidant system and phenylpropanoid pathway. |
| Databáze: | OpenAIRE |
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