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Molecules 2017, 22(11), 1914; doi:10.3390/molecules22111914

Evaluating the Potential Value of Natural Product Cuminic Acid against Plant Pathogenic Fungi in Cucumber

Research and Development Center of Biorational Pesticides, Northwest A & F University, Yangling 712100, China
These authors contributed equally to this work.
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Received: 4 September 2017 / Accepted: 1 November 2017 / Published: 6 November 2017
(This article belongs to the Section Natural Products)
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Abstract

Fusarium wilt and anthracnose are two major diseases which limit the yield and quality of cucumber worldwide. Cuminic acid was extracted from the seed of Cuminum cyminum L. The mean EC50 values of cuminic acid for inhibiting mycelial growth and zoospore germination of five Fusarium oxysporum f. sp. cucumerinum strains were 25.66 ± 3.02 μg/mL and 15.99 ± 2.19 μg/mL, and of four Colletotrichum lagenarium (Pass.) Ellis and Halsted strains were 29.53 ± 3.18 μg/mL and 18.41 ± 2.78 μg/mL, respectively. In greenhouse experiments, cuminic acid at 2000 μg/mL exhibited 70.77% protective and 62.63% curative efficacies against F. oxysporum, and 65.43% protective and 55.46% curative efficacies against C. lagenarium. Moreover, the translocation behavior of cuminic acid, determined by high performance liquid chromatography (HPLC), showed that it could be readily absorbed and transported upward and downward in cucumber. Importantly, superoxide dismutase (SOD) and pyphenol oxidase (PPO) activities of cucumber leaves treated with cuminic acid increased significantly. All results indicated that cuminic acid showed antifungal activity, and could be used as a botanical fungicide in disease management. This study encourages further investigation on the mechanism of action of cuminic acid and the development of alternative antifungal drugs. View Full-Text
Keywords: botanical fungicide; cuminic acid; cucumber; F. oxysporum; C. lagenarium; control efficacy botanical fungicide; cuminic acid; cucumber; F. oxysporum; C. lagenarium; control efficacy
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MDPI and ACS Style

Wang, Y.; Zhang, J.; Sun, Y.; Feng, J.; Zhang, X. Evaluating the Potential Value of Natural Product Cuminic Acid against Plant Pathogenic Fungi in Cucumber. Molecules 2017, 22, 1914.

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