炭样小单孢菌抗生素对水稻白叶枯病菌的抑菌作用  

Antibacterial Activities of Antibiotics Produced by Micromonospora carbonacea to Xanthomonas oryzae pv.oryzae

作　　者：戴菲[1] 黄运红[1] 宁茜[1] 龙中儿[1] 

机构地区：[1]江西师范大学生命科学学院,南昌330022

出　　处：《农药》2011年第4期302-304,共3页Agrochemicals

基　　金：江西省自然科学基金资助项目(2008GZN0058)

摘　　要：[目的]研究炭样小单孢菌所产抗生素对水稻白叶枯病菌的抑菌作用。[方法]采用杯碟法和二倍稀释法探讨了炭样小单孢菌所产抗生素对水稻白叶枯病菌的抑菌活性。[结果]炭样小单孢菌所产的抗生素对水稻白叶枯病菌的抑菌直径达27.10 mm,最低抑菌体积分数与最低杀菌体积分数分别为0.78%和25%,在最低杀菌质量浓度下,抗生素对水稻白叶枯病菌作用18 h杀菌率为100%。[结论]炭样小单孢菌所产的抗生素对水稻白叶枯病菌具有较强抑菌作用。[Aims] The antibacterial effect of antibiotics produced by micromonospora carbonacea JXNU-1 to Xanthomonas oryzae pv.oryzae was discussed.[Methods] The antibacterial activities of antibiotics on X.oryzae pv.oryzae was studied by the standard cylinder plate method and double dilution method.[Results] The results showed that its antibacterial diameter reached 27.10 mm.mic and mBc are 0.78 and 25%（volume fraction）,respectively.The sterilizing rate is almost 100% on condition that antibiotics effect X.oryzae pv.oryzae for 18 h at mBc.[Conclusions] The antibiotics produced by m.carbonacea JXNU-1 have strong bacteriostasic activity against X.oryzae pv.oryzae.

关 键 词：炭样小单孢菌 抗生素 水稻白叶枯病菌 

分 类 号：S435.111[农业科学—农业昆虫与害虫防治]