摘要
制备产嗜铁素细菌C19的培养液,并稀释成10倍,100倍,1000倍液浸种黄瓜种子,观察测算其发芽速率,结果表明100倍的菌夜处理后黄瓜种子发芽率最高,同时能较明显促进芽的生长。摩擦接种C19后喷雾芒果炭疽病孢子悬浮夜,保湿5天。结果显示C19处理过的芒果叶片发病率比未处理的芒果叶片少14%,病情指数也降低51.34。说明了嗜铁素细菌C19对芒果炭疽病有一定的生防作用。
The effect of C19 supernatant on the germination rate of cucumber seeds was studied, the result showed that 100 × dilution improved the germination rate of cucumber seed significantly.We inoculated C19 supernatant on mango leaves in vitro and then sparyed mango anthrax spores 3 h later, the results showed that morbidity of treatment were significantly less than that of CK （H2O and C19 only）, which indicated that siderophore-producing bacterium C 19 has biocontrol potential against mango anthracnose.
出处
《中国农学通报》
CSCD
北大核心
2009年第9期232-235,共4页
Chinese Agricultural Science Bulletin
基金
中央级公益性科研院所基本科研业务费专项资助项目"海南岛土壤环境嗜铁菌资源收集与生防效果初步评价"(2008hzs1J013)
"防治橡胶树根病专用药的开发研究"(2008hzs1J014)
国家科技支撑计划"橡胶树红
褐根病生防微生物的筛选和生防作用评价"(2007BAD48B00-004)
公益性行业(农业)科研专项"橡胶树白根病综合防治技术研究"(nyhyzx07-033-2-3)
关键词
产嗜铁素细菌
洋葱伯克霍尔德氏菌
发芽速率
炭疽病
生防效果
Siderophore-producing bacterium, Burkholderia cepacia, germination rate, mango anthracnose, biocontrol effect
