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拮抗菌AYM-18对番茄叶霉病的抑制作用
作者: 张雪辉  唐 蕊  
单位: (邢台学院生物化学系  河北 邢台 054001)  
关键词: 番茄叶霉病  拮抗菌AYM-18  活性组成分  拮抗机理  
分类号:S436.421
出版年,卷(期):页码:2012 ,43 ( 12 ): 页码:1973-1975
摘要:

【Objective】The tomato leaf mold inhibition effect on antagonistic bacteria AYM-18 was studied in order to provide scientific basis for new biological pesticide development in tomato production. 【Method】Using both the antibacterial circle method and immersion method, the effects of tomato leaf mold on antagonistic strain AYM-18 were determined to study the pathogen growth and the pathogen inhibition on spore germination. Also, by field investigation, the effects of antagonistic strain AYM-18 on tomato leaf mold prevention was determined. 【Result】The antagonistic effects of bacteria AYM-18 on tomato leaf mold pathogen inhibition were significant. The inhibition zone measured with an average width of 32 mm diameter, and its average inhibition rate of chlamydospores germination reached 97.4%. The pot control effect, regardless of medication application before or after inoculation, produced the relative control rate of over 60%. 【Conclusion】Antagonistic strain AYM-18 exhibited strong antifungal activity against Fulvia fulva and displayed good biocontrol potential for biocontrol fungicide development.

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