马桑提取物的抑菌作用和抑菌机理的初步研究

马桑（Coriariasinica Maxim）为双子叶植物纲木兰亚纲马桑科（Coriariaceae）马桑属（Coriaria Linn）植物，多年生落叶有毒小乔木或灌木，野生．生长于山坡或山沟中．产于温带，广泛分布于河南、四川、贵州、云南等地．据研究报道，马桑全株有毒，其提取物对多种咀嚼式害虫具有明显的拒食和胃毒作用，马桑叶粉的30倍水浸液对马铃薯晚疫病孢子发芽有抑制作用；30倍水煮液对棉苗轮纹斑病菌和樱顶病菌袍子发芽也有抑制作用．

Preparatory Study of the Function and the Way of the Suppression Medicament Working of Coriaria sinica Maxim's Extract

From the experiment of extraction of leaves of Coriaria sinica Maxim leaves and the effective inhibitory against 19 kinds of the fungus and bacteria,the result showed the alcoholoes compounds was more efficious than aliphatic compounds to every microoganism.For Ralstonia solanacearum as an example,Studying on the way of the suppression medicament working,it was found that the compoundscan controled Ralstonia solanacearum during its logarithmic phaseand stable trophophase.Through the photos of electron microscope,it was found that the compound can make the bacteria'chromatin pycnosis and appeard many(vacuoles,)destruct the formation of the cell wall then break the bacteria.