辛菌胺对15种植物病原菌的离体抗菌活性研究  

Study on the Anti-microbial Activity of Xinjunan to 15 Plant Pathogens

作　　者：李良孔[1] 袁善奎[1] 严清平[1] 崔晓岚[1] 姜辉[1] 

机构地区：[1]农业部农药检定所,北京100125

出　　处：《农药科学与管理》2010年第7期32-34,共3页Pesticide Science and Administration

摘　　要：分别采用菌丝生长速率法和吸光度法测定了辛菌胺对10种植物病原真菌和5种植物病原细菌的离体抗菌活性,结果表明辛菌胺具有广谱的抗菌活性,其中在真菌方面对番茄叶霉病菌的活性最高,EC50为4.3180μg/mL,对其他几种真菌的活性相对较低,但EC50均<100μg/mL;辛菌胺对细菌均表现出较高的抑制活性,其中对棉花角斑病菌的活性最高,EC50为0.1749μg/mL,对另外4种细菌的EC50值也均<5μg/mL。The anti-microbial activity of Xinjunan to 10 plant pathogenic fungi and 5 plant pathogenic bacteria were determined by the methods of mycelial lineal growth method and spectrophotometric method. The results showed that the Xinjunan with widely anti-microbial activity. For the tested fungi, the Xinjunan is the most effective on the mycelial growth of Fulvia fulva, with its EC50 value of 4.318 0μg/mL, and with lower effective on the other pathogenic fungi, but the EC50 values are all lower than 100μg/mL. Xinjunan has excellent effect on the tested bacteria, and specially effect on Xanthomonas campestris pv. malvacearum, with the EC50 values of 0.174 9μg/mL, and the EC50 values for the other 4 bacteria are all lower than 5μg/mL.

关 键 词：辛菌胺 真菌 细菌 抑制活性 

分 类 号：S482.2[农业科学—农药学]