CAJ | 학술논문

2008-2011年在黑龙江省共分离了41个马铃薯晚疫病菌,并测定了这些菌株对瑞毒霉和霜脲氰的敏感性和交互抗性。瑞毒霉测定结果显示6个（14.63%）菌株显示为敏感性,11个（26.83%）菌株显示为中抗,24个（58.54%）菌株显示为抗性。这说明黑龙江省分离的晚疫病菌已对瑞毒霉产生抗性。对于霜脲氰,EC50值为0.0630~2.1289μg/mL,最不敏感菌株是最敏感菌株的33.79倍,敏感性基线值为0.1879μg/mL。交互抗性分析结果显示,未产生交互抗性的菌株为73.16%,产生交互抗性菌株为26.84%。以上结果说明霜脲氰和瑞毒霉不能交叉使用。
2008-2011년재흑룡강성공분리료41개마령서만역병균,병측정료저사균주대서독매화상뇨청적민감성화교호항성。서독매측정결과현시6개（14.63%）균주현시위민감성,11개（26.83%）균주현시위중항,24개（58.54%）균주현시위항성。저설명흑룡강성분리적만역병균이대서독매산생항성。대우상뇨청,EC50치위0.0630~2.1289μg/mL,최불민감균주시최민감균주적33.79배,민감성기선치위0.1879μg/mL。교호항성분석결과현시,미산생교호항성적균주위73.16%,산생교호항성균주위26.84%。이상결과설명상뇨청화서독매불능교차사용。
A total of 41 Phytophthora infestans isolates were isolated from Heilongjiang Province, and determined for the sensitivity and cross resistance of these isolates to metalaxyl and cymoxanil. As for metalaxyl resistance, six （14.63%） isolates were sensitive, 24 （58.54%）isolates were intermediate resistant, and 24 （58.54%） isolates were resistant. The results suggested that P. infestans isolates collected from Heilongjiang Province have occurred the resistance to metalaxyl. As for cymoxanil, EC50 values ranged from 0.0630 to 2.1289 μg / mL, with EC50 values of the most insensitive isolate being 33.79 times the most sensitive, and the value of base line sensitivity was 0.1879 μg / mL. The results of cross resistance indicated that no cross resistant isolates was 73.16%, and cross resistant isolates was 26.84%. The above results suggested that cymoxanil could not be cross used with metalaxyl.