| 马铃薯晚疫病菌对3种杀菌剂的抵抗性与交配型分化 |
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| 引用本文： | 徐生军,郭蓉,王晨,张铉哲.马铃薯晚疫病菌对3种杀菌剂的抵抗性与交配型分化[J].东北农业大学学报,2009,40(2). |
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| 作者姓名： | 徐生军 郭蓉 王晨 张铉哲 |
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| 作者单位： | 东北农业大学农学院,哈尔滨,150030 |
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| 基金项目： | 中国博士后科学基金，东北农业大学科学研究基金，教育部留学回国人员科研启动基金 |
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| 摘 要： | 对采自黑龙江省和吉林省的马铃薯晚疫病菌进行了交配型的测定。结果表明,来自吉林省龙井市和黑龙江省5个县市的67个菌株均为A1交配型,未发现A2交配型。为了筛选对晚疫病有效的杀菌剂,在室内测定了不同杀菌剂的抗药性。马铃薯晚疫病菌对杀菌剂的抗性的测定结果显示,对于瑞毒霉,5个菌株敏感,占8.8%;10个菌株中抗,占17.5%;42个菌株是抗性菌株,占73.7%。对于韩乐威没有菌株能在1.0μg·mL-1的浓度生长,只有1株菌株在0.5μg·mL-1上生长,表明韩乐威的最低抑制浓度是0.2～0.5μg·mL-1。对于烯酰吗啉,大多数菌株能在0.5μg·mL-1的浓度上生长,在1.0μg·mL-1上生长的有2个菌株,表明烯酰吗啉的最低抑制浓度是0.5～1.0μg·mL-1,并且3种杀菌剂没有产生交互抗性。
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| 关 键 词： | 马铃薯晚疫病菌 瑞毒霉 烯酰吗啉 韩乐威 最低抑制浓度 交配型 |
Differentiation of mating type and changes in fungicide resistance of Phytophthora infestans |
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| XU Shengjun,GUO Rong,WANG Chen,ZHANG Xuanzhe.Differentiation of mating type and changes in fungicide resistance of Phytophthora infestans[J].Journal of Northeast Agricultural University,2009,40(2). |
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| Authors: | XU Shengjun GUO Rong WANG Chen ZHANG Xuanzhe |
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| Institution: | XU Shengjun,GUO Rong,WANG Chen,ZHANG Xuanzhe(College of Agriculture,Northeast Agricultural University,Harbin 150030,China) |
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| Abstract: | In this research,the mating type of Phytophthora infestans isolates collected from various locations of Heilongjiang Province and Jilin Province were tested by standard strains(A1 and A2 isolates).The results showed that all isolates collected from 5 counties(cities) of Heilongjiang Province and Longjing city of Jilin Province were all A1 mating type,and no A2 isolate was detected.To screen the effective fungicide for potato late blight control,the resistance to different fungicides in vitro was determined.... |
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| Keywords: | Phytophthora infestans metalaxyl dimethomorph ethaboxam minimum inhibitory concentration mating type |
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