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检测了云南、浙江、江苏、安徽、黑龙江、吉林等不同用药水平地区的420个水稻纹枯病菌Thanatephorus cucumeris(Frank)Donk.菌株对井岗霉素的抗性,发现各地稻纹枯病菌群体及个体对药剂的敏感度与野生菌株没有显著差异。证明井岗霉素尽管在我国部分地区施用已有15年左右,田间迄今并没有出现抗药性问题。1986—1989年对6个点监测结果表明该菌对井岗霉素的敏感度在年度间没有明显变化,室内抗药性诱导,也未能获得抗性菌株。
420 resistant strains of Thanatephorus cucumeris (Frankish) Donk. Against Jinggangmycin were detected in Yunnan, Zhejiang, Jiangsu, Anhui, Heilongjiang, Jilin and other areas with different drug levels. There was no significant difference between the population and the individual sensitivity to the drug and the wild strain. Although Jingangmycin has been applied in some areas in China for about 15 years, so far there has been no resistance problem in the field. The results of six points monitoring from 1986 to 1989 showed that there was no significant change in the susceptibility of Jinggangmycin to Jinggangmycin during the year, and no resistance strains were induced by indoor antibiotic resistance.