The antioxidant response mechanism of flavonoids in ‘Tainong 1’ mango pulp under enhanced UV-B radiation
In this study, UV-B radiation of 96 kJ·m−2·d−1 exposed to the ‘Tainong 1’ mango tree, and trees as the control group under natural lighting. The relative conductivity and the contents of MDA, superoxide anion, H2O2 were lower in the treatment group than in the control group before 60 DAF, and the op...
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Taylor & Francis Group
2024-12-01
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| Series: | Cogent Food & Agriculture |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/23311932.2023.2301273 |
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| author | Xian Shui Tian-tian Chen Min-jie Qian Jun-jie Peng Jing-jia Du Kai-bing Zhou Feng Liu |
| author_facet | Xian Shui Tian-tian Chen Min-jie Qian Jun-jie Peng Jing-jia Du Kai-bing Zhou Feng Liu |
| author_sort | Xian Shui |
| collection | DOAJ |
| description | In this study, UV-B radiation of 96 kJ·m−2·d−1 exposed to the ‘Tainong 1’ mango tree, and trees as the control group under natural lighting. The relative conductivity and the contents of MDA, superoxide anion, H2O2 were lower in the treatment group than in the control group before 60 DAF, and the opposite occurred after 60 DAF. The total flavonoid content in the treatment group was higher than that in the control group, but the opposite occurred later. The 60 DAF serves as the critical point. Before 60 DAF, the treatment enhanced the activity of each enzyme by inducing the upregulated expression of genes such as CHS, R02446, and CYP98A so that gallochol, leucoside, kaempferoside, quercetin, isoquercetin and luteolin, and then removed ROS through the reduction of flavonoids. After 60 DAF, the treatment enhanced the activity of each enzyme by inducing the upregulated expression of HCT and R02446, but the synthesized flavonoids are consumed by ROS. Meanwhile, ROS also accumulate continuously because of the enhanced continuous exposure of UV-B radiation. The downregulated expression of CYP75A led to a decline in enzyme activity. The accumulation rate of flavonoid compounds was lower than that of ROS, which led to ROS damage in pulp. |
| format | Article |
| id | doaj-art-3e4b01fbf0eb462f85ccc8f74ce158a2 |
| institution | Kabale University |
| issn | 2331-1932 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Food & Agriculture |
| spelling | doaj-art-3e4b01fbf0eb462f85ccc8f74ce158a22024-12-13T09:52:53ZengTaylor & Francis GroupCogent Food & Agriculture2331-19322024-12-0110110.1080/23311932.2023.2301273The antioxidant response mechanism of flavonoids in ‘Tainong 1’ mango pulp under enhanced UV-B radiationXian Shui0Tian-tian Chen1Min-jie Qian2Jun-jie Peng3Jing-jia Du4Kai-bing Zhou5Feng Liu6Sanya Institute of Breeding and Multiplication, Hainan University, Sanya, ChinaSanya Institute of Breeding and Multiplication, Hainan University, Sanya, ChinaSanya Institute of Breeding and Multiplication, Hainan University, Sanya, ChinaSanya Institute of Breeding and Multiplication, Hainan University, Sanya, ChinaSanya Institute of Breeding and Multiplication, Hainan University, Sanya, ChinaSanya Institute of Breeding and Multiplication, Hainan University, Sanya, ChinaKey Laboratory of Postharvest Physiology and Fresh-Keeping of Tropical Horticultural Products of Hainan Province, Zhanjiang, ChinaIn this study, UV-B radiation of 96 kJ·m−2·d−1 exposed to the ‘Tainong 1’ mango tree, and trees as the control group under natural lighting. The relative conductivity and the contents of MDA, superoxide anion, H2O2 were lower in the treatment group than in the control group before 60 DAF, and the opposite occurred after 60 DAF. The total flavonoid content in the treatment group was higher than that in the control group, but the opposite occurred later. The 60 DAF serves as the critical point. Before 60 DAF, the treatment enhanced the activity of each enzyme by inducing the upregulated expression of genes such as CHS, R02446, and CYP98A so that gallochol, leucoside, kaempferoside, quercetin, isoquercetin and luteolin, and then removed ROS through the reduction of flavonoids. After 60 DAF, the treatment enhanced the activity of each enzyme by inducing the upregulated expression of HCT and R02446, but the synthesized flavonoids are consumed by ROS. Meanwhile, ROS also accumulate continuously because of the enhanced continuous exposure of UV-B radiation. The downregulated expression of CYP75A led to a decline in enzyme activity. The accumulation rate of flavonoid compounds was lower than that of ROS, which led to ROS damage in pulp.https://www.tandfonline.com/doi/10.1080/23311932.2023.2301273UV-Bmangoflavonoidsantioxidant responseM. Luisa Escudero-Gilete, Universidad de Sevilla, SpainAgriculture; Horticulture; Plant Biology |
| spellingShingle | Xian Shui Tian-tian Chen Min-jie Qian Jun-jie Peng Jing-jia Du Kai-bing Zhou Feng Liu The antioxidant response mechanism of flavonoids in ‘Tainong 1’ mango pulp under enhanced UV-B radiation Cogent Food & Agriculture UV-B mango flavonoids antioxidant response M. Luisa Escudero-Gilete, Universidad de Sevilla, Spain Agriculture; Horticulture; Plant Biology |
| title | The antioxidant response mechanism of flavonoids in ‘Tainong 1’ mango pulp under enhanced UV-B radiation |
| title_full | The antioxidant response mechanism of flavonoids in ‘Tainong 1’ mango pulp under enhanced UV-B radiation |
| title_fullStr | The antioxidant response mechanism of flavonoids in ‘Tainong 1’ mango pulp under enhanced UV-B radiation |
| title_full_unstemmed | The antioxidant response mechanism of flavonoids in ‘Tainong 1’ mango pulp under enhanced UV-B radiation |
| title_short | The antioxidant response mechanism of flavonoids in ‘Tainong 1’ mango pulp under enhanced UV-B radiation |
| title_sort | antioxidant response mechanism of flavonoids in tainong 1 mango pulp under enhanced uv b radiation |
| topic | UV-B mango flavonoids antioxidant response M. Luisa Escudero-Gilete, Universidad de Sevilla, Spain Agriculture; Horticulture; Plant Biology |
| url | https://www.tandfonline.com/doi/10.1080/23311932.2023.2301273 |
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