| 黄芪根瘤内生细菌GBL18-2次生代谢产物化学成分及抑菌活性研究 |
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| 引用本文： | 潘巧娜,崔北米,石文广,高星.黄芪根瘤内生细菌GBL18-2次生代谢产物化学成分及抑菌活性研究[J].江西农业学报,2008,20(10). |
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| 作者姓名： | 潘巧娜 崔北米 石文广 高星 |
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| 作者单位： | 西北农林科技大学,生命科学学院,陕西,杨陵,712100 |
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| 基金项目： | 西北农林科技大学国家级大学生创新性实验计划 |
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| 摘 要： | 采用常规化学成分检测手段,对黄芪根瘤内生菌GBL18-2菌株次生代谢产物,用氯仿等有机溶剂萃取物进行检测,结果表明其次生代谢产物中存在蒽醌类、黄酮类、甾体三萜类等物质;次生代谢产物对金黄色葡萄球菌的抑制作用明显高于大肠杆菌;正丁醇相产物对金黄色葡萄球菌的最低抑菌浓度最低,为11.5μg/mL。
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| 关 键 词： | 黄芪 根瘤内生菌 化学成分 抑菌作用 |
Chemical Composition and Antibacterial Activity of Secondary Metabolites from Endogenesis Bacteria GBL18-2 on Root Nodule of Radix Astragali |
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| PAN Qiao-na,CUI Bei-mi,SHI Wen-guang,GAO Xing.Chemical Composition and Antibacterial Activity of Secondary Metabolites from Endogenesis Bacteria GBL18-2 on Root Nodule of Radix Astragali[J].Acta Agriculturae Jiangxi,2008,20(10). |
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| Authors: | PAN Qiao-na CUI Bei-mi SHI Wen-guang GAO Xing |
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| Abstract: | Through the extraction with organic solvents(chloroform and so on),this research used the conventional chemical composition examination method to test the secondary metabolite from endogenesis bacteria strain GBL18-2 found on the root nodule of radix astragali.The results indicated that the secondary metabolite in strain GBL18-2 contained anthraquinone,flavanone,steroid three terpene and so on.The inhibitory effect of the secondary metabolite on golden-yellow staphylococcus Staphyloccocus aureus was obviously higher than that on Escherichia coli.The lowest bacteriostasis concentration of the normal butyl alcohol product to Staphyloccocus aureus was the lowest,being 11.5 μg/mL. |
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| Keywords: | Radix astragali Endophytic germ Chemical constituent Bacteriostasis |
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