昆虫病原线虫共生菌对香蕉灰纹菌的影响研究  

Antibiotic Activities of Symbiotic Bacteria to Cordana musae(zimm.)Hohn and the Adversity Resistance

作　　者：王欢[1] 刘限[1] 董辉[1] 丛斌[2] 孙莉娟[1] 

机构地区：[1]沈阳农业大学生物科学技术学院,辽宁沈阳110161 [2]沈阳农业大学植物保护学院,辽宁沈阳110161

出　　处：《北方园艺》2008年第6期194-196,共3页Northern Horticulture

基　　金：国家自然科学基金资助项目(30170625);国家“十五”攻关课题资助项目(2004BA509B04);辽宁省自然科学基金资助项目(20022084);沈阳农业大学青年教师科研基金资助项目(2005002)

摘　　要：利用不同品系昆虫病原线虫的共生菌菌株对香蕉灰纹菌进行抑菌活性测定,得到一株抑菌效果良好的共生菌菌株0385D,抑菌圈平均半径为17.33mm,并对高毒力菌株的抗逆性(包括不同温度、紫外照射)进行了初步探索,结果表明:共生菌菌株0385D在50℃下处理60min和100℃10min.,其抑菌活性依旧很高;18W紫外线照射120min对共生菌0385D的抑菌活性的影响不明显。In this study, antibiotic activities of 41 strains symbiotic bacteria were examined by bioassays. The highly virulent strain was selected through a large number of bioassays. 0385D had highly antibiotic activity to Cordana musae （zimm.）Hohn,the radius of inhition zone was 17. 33 mm. The adversity resistance showed that the highly virulent strain had antibiotic activity to Cordana musae（zimm. ）Hohn at 50℃ 60 min and 100℃ 10 min. The culture broth waved by ultraviolet rays from 10 min to 120 rain, the insecticidal activity was still stable.

关 键 词：昆虫病原线虫 共生菌 抑菌活性 

分 类 号：S436.67[农业科学—农业昆虫与害虫防治]