| ‘丰香’草莓果实发育过程中抗氧化物质与活性氧代谢研究 |
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| 引用本文： | 罗娅,汤浩茹.‘丰香’草莓果实发育过程中抗氧化物质与活性氧代谢研究[J].园艺学报,2011,38(8):1523-1530. |
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| 作者姓名： | 罗娅 汤浩茹 |
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| 作者单位： | 四川农业大学园艺学院，四川雅安 625014 |
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| 基金项目： | 四川省教育厅重点项目(07ZZ023,09ZB050) |
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| 摘 要： | 以草莓栽培品种‘丰香’（Fragaria × ananassa‘Toyonaka’）为试材，探讨其果实发育过程中抗氧化物质与活性氧的变化。结果表明，在果实发育过程中，果实产生的超氧阴离子（）逐渐增加，超氧化物歧化酶（SOD）、过氧化氢酶（CAT）和抗坏血酸过氧化物酶（APX）活性，维生素E、总酚、类黄酮含量以及抗氧化能力显著降低，MDA含量增加。其中，维生素E、总酚和类黄酮是草莓果实发育过程中主要的抗氧化物质，与草莓果实的抗氧化能力密切相关，并在抑制和H2O2的产生方面起着重要作用，而花青素和抗坏血酸在草莓发育过程中所起的抗氧化作用较小。
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| 关 键 词： | 草莓 果实 发育阶段 抗氧化物质 活性氧 |
| 收稿时间： | 2011-5-31 |
| 修稿时间： | 2011-7-19 |
Research of Antioxidants and Active Oxygen Metabolism During 'Toyonaka' Strawberry Fruit Ripening |
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| LUO Ya , TANG Hao-ru.Research of Antioxidants and Active Oxygen Metabolism During 'Toyonaka' Strawberry Fruit Ripening[J].Acta Horticulturae Sinica,2011,38(8):1523-1530. |
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| Authors: | LUO Ya TANG Hao-ru |
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| Institution: | Horticultural College，Sichuan Agricultural University，Ya’an，Sichuan 625014，China |
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| Abstract: | Fruits of strawberry（Fragaria × ananassa‘Toyonaka’）were used to investigate the changes of reactive oxygen and antioxidants during strawberry fruit ripening. The results showed that the production rate of superoxide anion（）increased gradually，the activities of catalase（CAT）and ascorbate peroxidase（APX），and the contents of vitamin E，total polyphenol and total flavonoids decreased significantly during strawberry fruit ripening，which is the main cause of accumulation of reactive oxygen and MDA content. Meanwhile，the main antioxidant of strawberry fruit were vitamin E，total phenols and flavonoid，which were correlated with the antioxidant capacity closely and played an important role to inhibit the production of and H2O2，but not the anthocyanins and ascorbate acid. |
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| Keywords: | strawberry fruit development stage antioxidant reactive oxygen |
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