将产甘草酸的甘草内生真菌G11在甘草提取物中培养，观察了其生长及次级代谢产物。结果表明，在发酵培养基中加入2.0%甘草提取液可提高菌株产甘草酸的能力；在固体培养基中加入3.0%甘草提取液时，该菌株菌丝体长势最好，生长速度最快。

In this experiment，the Glycyrrhizic Acid-producing Endophytic Fungus G11 was cultured in Glycyrrhiza extract and its growth and secondary metabolites were observed. The result showed that the yield of Glycyrrhizic acid were effectively improved by adding 2% licorice plant extract into the fermentation medium； The hypha grew best and had the fastest growth rate when 3.0% liquorice extract was added to the solid medium.

S565.4

甘肃省农业科学院中青年基金项目“甘肃野生甘草中产甘草酸内生真菌的分离与发酵培养”(2014GAAS30)。