不同中微量元素对黄瓜黑星病菌的抑制作用及其对酶活性的影响

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Published in植物病虫害研究：英文版 no. 1; pp. 1 - 4
Main Author 娄春荣 邹晓锦 何志刚 牛世伟 刘慧颖 董环
Format Journal Article
LanguageEnglish
Published 2011
Subjects
中微量元素
抑菌试验
酶活性
黑星病
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Bibliography:LOU Chun-rong, ZOU Xiao-jin, HE Zhi-gang, NIU Shi-wei, LIU Hui-ying, DONG Huan（ Institute of Environmental Resources and Rural Energy, Liaoning Academy of Agricultural Sciences, Shenyang 110161, China）
The paper was to explore the effect of trace and secondary elements on scab of cucurbits （ Cladosporium cucumerinum） and their effects on enzyme activities of cucumber plants. [ Method ] Indoor antifungd experiment and pot test was carried out to study the control effect of different trace and secondary dements on scab of cucu.rbits; after trace and secondary element compounds were sprayed for 7 d, the content of soluble protein and malondialdehyde （MDA） and the activities of peroxidase （POD） and superoxide dismutase （SOD） of cucumber leaves during seedling stage were simultaneously detected. [ Result] The inhibi- tion effects on scab of cucurbits were found in the three trace and secondary dements, especially for the CaC12 （66.9%）, and about 54.6% and 24.1% for ZnSO4 and H3 BO3 , respectively. When cucumber plants were infected by scab of cuea.rbits, the contents of MDA for all treatments were significantly decreased in cucum- ber leaves after spraying the three trace and secondary elements compared with control. The contents of soluble protein in cucumber seedling were increased by Zn- SO4 and H3 BO3 application, while the contents of POD and SOD were increased on ZnSO4 and CaCI2 treatments. The defense system of cucumber was induced and strengthened by application of the three trace and secondary elements. [ Conclusion ] The results provided the theoretical basis for practical application and research on resistance mechanism of using trace and secondary dements to control scab of eueurbits.
Trace and secondary element; Antifungal experiment ; Scab of cucurbits; Enzyme activity
ISSN:2152-3932