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首页> 外文期刊>Asian Journal of Chemistry: An International Quarterly Research Journal of Chemistry >Antifungal Activity of Methanol, Acetone and Diethyl Ether Extracts of Cyanobacteria Against Plant Pathogenic Fungi
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Antifungal Activity of Methanol, Acetone and Diethyl Ether Extracts of Cyanobacteria Against Plant Pathogenic Fungi

机译：蓝藻的甲醇，丙酮和乙醚萃取物对植物病原真菌的抗真菌活性

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摘要

This study was undertaken to explore the antifungal activity of methanol (ME), acetone (AE) and methanol: acetone: diethyl ether (MADE) extracts of S. platensis, T. distorta, M. aeruginosa against seven phytopathogenic fungi (F. oxyspomm, Fusarium sp., F. solani, A. flavus, A. niger, A. altemata, Alternaria sp. and Cladosporium sp.). All extract gave positive results against one or more tested fungi. However, none was able to inhibit the growth of A. altemata and Alternaria sp. Moreover, MADE of all three cyanobacteria showed stimulatory effect on these two fungi. ME, AE and MADE of S. platensis were found effective against maximum number of tested fungi, All extract were able to inhibit the growth of the Cladosporium sp. but with varying degrees. AE and MADE of S. platensis showed strong antifungal activity (+++) against F. oxyspomm. Whereas, MADE of M. aeruginosa showed strong inhibitory effect against F. solani and Cladosporium sp. Crude extract (MADE) of all cyanobacteria metabolites was analyzed using gas chromatography-mass spectrometry (GC-MS). Results showed that the main component in the crude extracts of S, platensis is 2-hexyl-1-nitrocyclohexane (92.1 %); T. distorta is boronic acid, ethyl-, dimethyl ester (83.9 %) and M. aeruginosa is (S)-(+)-1-cyclohexylethylamine representing 91.9 %.
机译：进行这项研究以探讨甲醇（ME），丙酮（AE）和甲醇：丙酮：乙醚（MADE）提取物的钝顶酵母，变形杆菌，铜绿假单胞菌对7种植物病原真菌（F. oxyspomm ，镰刀菌属（Fusarium sp。），茄形镰刀菌（F. solani），黄曲霉（A. flavus），黑曲霉（A.niger），拟南芥（A. altemata），链格孢属（Alternaria sp。）和枝孢属（Cladosporium sp。所有提取物对一种或多种测试真菌均给出阳性结果。然而，没有一个能够抑制A. altemata和Alternaria sp。的生长。而且，所有三种蓝细菌的MADE对这两种真菌均显示出刺激作用。发现ME，AE和MADE platensis均对最大数量的测试真菌有效。所有提取物均能抑制Cladosporium sp。的生长。但程度不同。中华板球菌的AE和MADE表现出对F.oxyspomm的较强的抗真菌活性（+++）。而铜绿假单胞菌的MADE表现出对茄形镰刀菌和枝孢菌的强烈抑制作用。使用气相色谱-质谱（GC-MS）分析所有蓝细菌代谢产物的粗提物（MADE）。结果表明，白花蛇舌草粗提物中的主要成分为2-己基-1-硝基环己烷（92.1％）;变形单胞菌为硼酸，乙酯，二甲酯（83.9％），铜绿假单胞菌为（S）-（+）-1-环己基乙胺，占91.9％。

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