农用抗生素生产菌株的筛选

Selection of Producing Strain for Agricultural Antibiotics

采用放线菌常规分离方法,从湖南、江西、贵州6个地点采集种植吴茱萸的土壤中分离出15株放线菌,并对它们进行5种病原菌的拮抗性筛选。结果表明,6-1-1和10-1-1菌株对水稻纹枯病病原菌的抑制率达98.8%和93.3%,对白绢病病原菌的抑制率达91.3%和90.2%,对金黄色葡萄球菌、枯草芽孢杆菌、大肠杆菌也有一定的抑制效果。

Using conventional methods, 15 strains of actinomycetes were screened from 6 copies of soil plated evodia rutaecacpa in Hunan, Jiangxi and Guizhou etc. Antagonism selection with 5 kinds of pathogenic bacteria were conducted to them. The results showed that 2 strains （6-1-1 and 10-1-1） could inhibit the growth of pathogenic bacteria of rice sheath blight disease and southern blight, and also had a certain inhibition effect to Staphylococcus aureus, Bacillus subtilis and Escherichia coli.