大丁草 Gerbera anandria(L.)Schultz Bip.为菊料大丁草属植物,在我国各地均有分布;曾作为民间草药,用于解毒和治疗疔疮。国外一般作为观赏植物。我们从大丁草的乙醇提取液中,分离出一种白色结晶。经初步药理实验观察,表明该结晶对绿脓杆菌和金黄葡萄球菌均显抑制作用,并发现对体内感染绿脓杆菌的动物,显示保户作用,存活率超过半数以上。 Gerbera anandria (L.) Schultz Bip. is a plant of the genus Gerbera. It is distributed throughout China and has been used as a folk herb for detoxification and acne treatment. It is generally used as an ornamental plant abroad. We isolated a white crystal from the ethanol extract of gerbera. Preliminary pharmacological experiments showed that the crystals had significant inhibitory effects on Pseudomonas aeruginosa and Staphylococcus aureus, and it was found that animals infected with P. aeruginosa in vivo showed the effect of protecting the households and the survival rate was more than half.