NO处理对采后芒果抗氧化酶系统的影响 |
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引用本文: | 陈娇,袁德保,谭琳,李奕星,李芬芳,郑晓燕,郑丽丽,金志强.NO处理对采后芒果抗氧化酶系统的影响[J].安徽农业科学,2014(26):9164-9166. |
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作者姓名: | 陈娇 袁德保 谭琳 李奕星 李芬芳 郑晓燕 郑丽丽 金志强 |
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作者单位: | 中国热带农业科学院海口实验站/海南省香蕉遗传改良重点实验室,海南海口,570102 |
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基金项目: | 国家自然科学基金项目,中国热带农业科学院院本级基本科研业务费专项 |
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摘 要: | 目的]探讨NO处理对采后芒果抗氧化酶系统的影响.方法]以“吉禄”芒果为试验对象,用0.1 mmol/L的外源NO浸泡处理芒果果实30 min,25℃贮藏11d,分析NO处理对芒果果实中过氧化物酶(POD)、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)等抗氧化相关酶活性及丙二醛(MDA)含量变化的影响.结果]NO处理能在一定程度上抑制芒果果实丙二醛含量的增加,并提高超氧化物歧化酶、过氧化物酶、过氧化氢酶和抗坏血酸过氧化物酶的活性,从而延缓了采后芒果果实在贮藏过程中的衰老进程.结论]研究可为NO用于芒果贮藏保鲜提供理论依据.
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关 键 词: | 芒果 一氧化氮 抗氧化酶 |
Effects of Nitric Oxide Treatment on Antioxidant Enzyme System of Postharvest Mango |
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Institution: | CHEN Jiao;Haikou Experimental Station,Chinese Academy of Tropical Agricultural Sciences/Hainan Key Laboratory of Banana Genetic Improvement; |
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Abstract: | Objective ] To better understand the effects of nitric oxide treatment on antioxidant enzyme system of postharvest mango. Meth- od] Mango fruit that was pretreated with 0.1 mmol/L NO was stored at 25 ℃ for 11 days. Changes in these levels of superoxide dismutase (SOD), peroxidases (POD), eatalase (CAT), ascorbate peroxidase (APX) and malondialdehyde (MDA), respectively, were measured during storage. Result] The results showed that NO treatment could inhibit postharvest mango fruit malondialdehyde (MDA) content, in- crease superoxide dismutase (SOD), peroxides (POD), catalane (CAT) and asorbic peroxides (APX) activities, and delay ripening and se- nescence of mango fruit during storage. Conclusion] The study can provide theoretical basis to NO for mango fresh -keeping. |
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Keywords: | Mango Nitric oxide Antioxidant enzyme |
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