保护酶和酚类物质参与苹果腐烂(膨胀青霉)抗性

Q3 Agricultural and Biological Sciences

Journal of Crop Protection Pub Date : 2016-06-01 DOI:10.18869/MODARES.JCP.5.3.349

Tahmineh Naeem-Abadi, M. Keshavarzi

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引用次数: 4

摘要

由扩张青霉引起的蓝霉病是苹果采收后的主要病害。本研究以两个相对抗性和易感的苹果品种“史密斯奶奶”和“马什哈德”为研究对象，研究了苹果对该病菌抗性的生化基础。在0 ~ 7 d的不同时间间隔内比较过氧化氢酶(CAT)、过氧化物酶(POX)、超氧化物歧化酶(SOD)和多酚氧化酶(PPO)的活性和多酚含量。结果表明，青桃果实多酚含量高于马什哈德，SOD和CAT活性高于马什哈德，但处理3 d后CAT活性下降。两个品种的痘活性无明显差异。综上所述，多酚类物质对苹果抗蓝霉病有一定的作用。PPO和SOD的激活、POX活性的缺乏和CAT活性的降低共同导致了蓝霉菌真菌周围的毒性环境。

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Involvement of protective enzymes and phenols in decay (Penicillium expansum) resistance in apple

Blue mold disease caused by Penicillium expansum is a major post- harvest disease of apples. In this research, the biochemical basis of apple resistance to this pathogen was studied in two relatively resistant and susceptible cultivars, Granny smith and Mashhad, respectively. The activities of catalase (CAT), peroxidase (POX), superoxide dismutase (SOD) and polyphenol oxidase (PPO) enzymes and polyphenol content were compared at different time intervals of 0 to 7 days. Based on the results, fruit polyphenol content of Granny smith was higher than that of Mashhad PPO, SOD and CAT activity was higher in Granny smith than Mashhad but CAT activity decreased three days post-treatment. No detectable difference was found in POX activities in the two cultivars. It is concluded that polyphenols contribute in apple resistance to blue mold. Activation of PPO and SOD, lack of POX activity and decrease of CAT activity, all together, could lead to a toxic environment around the blue mold fungus.

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来源期刊

Journal of Crop Protection Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： Journal of Crop Protection is one of the TMU Press journals that is published by the responsibility of its Editor-in-Chief and Editorial Board in the determined scopes. Journal of Crop Protection (JCP) is an international peer-reviewed research journal published quarterly for the purpose of advancing the scientific studies. It covers fundamental and applied aspects of plant pathology and entomology in agriculture and natural resources. The journal will consider submissions from all over the world, on research works not being published or submitted for publication as full paper, review article and research note elsewhere. The Papers are published in English with an extra abstract in Farsi language.