中外葡萄与葡萄酒Issue(5)：45-51,7.DOI:10.13414/j.cnki.zwpp.2024.05.006
抗抑霉唑葡萄白腐病菌的适合度及与三唑类杀菌剂的交互抗性研究
Study on Fitness of Imazalil-resistant Coniella vitis and Its Cross-resistance with Triazole Fungicides
摘要
Abstract
The fitness of Coniella vitis resistant to imazalil and cross-resistance between imazalil and triazole fungicides were studied.The results showed that some resistant strains were significantly higher than sensitive strains in terms of mycelial growth rate,spore production and pathogenicity,but there was no significant correlation between pathogenicity and the EC50 value of strain.The average EC50 value of 37 strains of Coniella vitis to imazalil,propiconazole,difenoconazole and flusilazole were 16.5339,1.1159,2.2293,1.6481 μg·mL-1,respectively.The correlation coefficients of EC50 logarithm of imazalil with propiconazole,difenoconazole and flusilazole were 0.6572,0.5261,and 0.5106 respectively,indicating that there was cross-resistance between imazalil and propiconazole,but no significant cross-resistance with difenoconazole and flusilazole.These results showed that the Coniella vitis resistant to imazalil had strong fitness,and had the potential to become a dominant population.Therefore,when using imazalil to control grape white rot,it is important to avoid mixing it with propiconazole,in order to slow down the development of pathogen resistance.关键词
葡萄白腐病菌/抑霉唑/适合度/三唑类杀菌剂/交互抗性Key words
Coniella vitis/imazalil/fitness/triazole fungicides/cross-resistance分类
农业科技引用本文复制引用
李宝燕,栾炳辉,石洁,王培松,穆淑媛,杜远鹏,唐美玲,刘保友..抗抑霉唑葡萄白腐病菌的适合度及与三唑类杀菌剂的交互抗性研究[J].中外葡萄与葡萄酒,2024,(5):45-51,7.基金项目
山东省重点研发计划(2022TZXD0010) （2022TZXD0010）
烟台市科技计划(2022XCZX094)山东省果品产业技术体系项目(SDAIT-06-11) （2022XCZX094）
山东省科技型中小企业创新能力提升工程(2023TSGC0894)山东省自然科学基金重点项目(ZR2020KC026)农业农村部园艺作物种质资源利用重点实验室开放基金资助课题计划(NYZS202303) （2023TSGC0894）
