Identification and activity of ethyl gallate as an antimicrobial compound produced by Geranium carolinianum
Identification and activity of ethyl gallate as an antimicrobial compound produced by Geranium carolinianum
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DOI：
10.1111/j.1445-6664.2009.00335.x
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发表时间：
2009-06-01
影响因子：
1.4
通讯作者：
Abe, Hiroshi
中科院分区：
文献类型：
--
作者：
Ooshiro, Atsushi;Hiradate, Syuntaro;Abe, Hiroshi
从天竺葵（Geranium carolinianum）的气相色谱-质谱联用技术(1)H-NMR和（13）C-NMR鉴定其抗菌化合物为3,4,5 -三羟基苯甲酸乙酯（没食子酸乙酯）。采用纸片法测定没食子酸乙酯对马铃薯3种病原菌的抑菌活性。分别在浓度>00、bbb300和bbb300 μ g（-1）时观察其对茄尖Ralstonia、疥疮链霉菌和酸链霉菌的抑菌活性。上述结果表明，卡罗来纳天竺葵对土传植物病害病原菌的抑菌活性与没食子酸乙酯有一定的关系。
We isolated an antimicrobial compound from the aerial tissue of Geranium carolinianum and identified it as ethyl 3, 4, 5-trihydroxy benzoate (ethyl gallate) by (1)H-NMR and (13)C-NMR and gas chromatography-mass spectrometry. The antimicrobial activity of ethyl gallate against three potato pathogens was assayed by the paper disk method. The activity against Ralstonia solanacerum, Streptomyces scabies, and Streptomyces acidiscabies was observed at concentrations > 200, > 300, and > 300 mu g disk(-1), respectively. These results suggest that the antimicrobial activity of Geranium carolinianum against soil-borne plant disease pathogens is partly related to ethyl gallate.