| 一氧化氮对采后芒果果实抗氧化酶活性的影响 |
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| 引用本文： | 洪克前,徐函兵,张鲁斌,贾志伟.一氧化氮对采后芒果果实抗氧化酶活性的影响[J].热带作物学报,2017(8):1529-1533. |
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| 作者姓名： | 洪克前 徐函兵 张鲁斌 贾志伟 |
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| 作者单位： | 1. 中国热带农业科学院南亚热带作物研究所海南省热带园艺产品采后生理与保鲜重点实验室 广东湛江 524091;2. 信阳农林学院,河南信阳,464000 |
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| 基金项目： | 中央级公益性科研院所基本科研业务费专项-中国热带农业科学院院级创新团队项目(1630062017032 |
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| 摘 要： | 以‘红芒6号’芒果(Mangifera indica L.‘Zill’)为试材,研究采后一氧化氮(NO)对芒果果肉抗氧化酶活性和果实硬度的影响。结果显示,与对照相比,100μmol/L硝普钠(一氧化氮供体)处理保持了果肉组织中超氧化物歧化酶(SOD)活性,降低了多酚氧化酶(PPO)活性以及过氧化氢(H_2O_2)和丙二醛(MDA)含量,延缓了果实硬度的下降。表明NO可以有效减轻采后芒果果实氧化胁迫,进而延缓果实成熟。
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| 关 键 词： | 芒果果实 一氧化氮 抗氧化酶活性 |
Effects of Nitric Oxide on Activities of Antioxidative Enzymes of Postharvest Mango Fruits |
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| HONG Keqian,XU Hanbing,ZHANG Lubin,JIA Zhiwei.Effects of Nitric Oxide on Activities of Antioxidative Enzymes of Postharvest Mango Fruits[J].Chinese Journal of Tropical Crops,2017(8):1529-1533. |
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| Authors: | HONG Keqian XU Hanbing ZHANG Lubin JIA Zhiwei |
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| Abstract: | The effects of nitric oxide (NO) on the antioxidative enzymatic activities and fruit softness of the post-harvest mango (Mangifera indica L. 'Zill') fruits were investigated. The results indicated that the treatment of 100μmol/L sodium nitroprusside ( NO donor) maintained superoxide dismutase ( SOD) activity, decreased polyphenol oxidase (PPO) activity, and hydrogen peroxide (H2O2) as well as malondialdehyde (MDA) contents. Moreover, the fruit firmness in the treated-fruits was higher than that of the controls during storage period. The results indicated that NO could alleviate the oxidative stress, thereby delaying ripening of the postharvest mango fruits. |
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| Keywords: | Mango fruits nitric oxide antioxidative enzymatic activities |
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