摘要
以炭疽叶枯病菌(Glomerella cingulata)的粗毒素以及嘎啦苹果叶片为生测材料,测定了28种物质对炭疽叶枯病菌粗毒素活性的钝化效果,初步筛选了可用于该病害防治的毒素钝化药剂。结果显示:25℃条件下复硝酚钠和丙酸钠均可有效钝化粗毒素对叶片的致病活性,但温度增至30℃时只有复硝酚钠的效果较好;喷施100 mg/L的复硝酚钠水溶液对苹果炭疽叶枯病具有一定的保护和治疗效果,但复硝酚钠本身对病菌菌丝生长和孢子萌发均无抑制作用,因此,推测复硝酚钠是一种可通过钝化病菌毒素防治苹果炭疽叶枯病的药剂。
In this study,the Glomerella cingulata crude toxin and Gala apple leaves were used as the experiment materials,and the deactivation effects of 28 substances on Glomerella cingulata toxin were investigated.The results showed that,both sodium propionate and sodium nitrophenolate effectively deactivated the activity of crude toxin on apple leaves under 25℃,but only sodium nitrophenolate still performed well when the temperature increased to 30℃;the spray of 100 mg/L sodium nitrophenolate showed a control efficacy against apple Glomerella leaf spot,however,sodium nitrosol had no inhibition effect on the mycelium growth and spore germination.Therefore,it was speculated that sodium nitrophenolate was an agent which could control this disease by deactivating the pathogen toxin.
作者
于鑫
刘志扬
刘焕星
张清明
练森
李保华
李平亮
YU Xin;LIU Zhiyang;LIU Huanxing;ZHANG Qingming;LIAN Sen;LI Baohua;LI Pinliang(College of Plant Health and Medicine,Qingdao Agricultural University,Qingdao 266109,China;Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management,Qingdao 266109,China)
出处
《现代农药》
CAS
2023年第6期64-70,共7页
MODERN AGROCHEMICALS
基金
山东省自然科学基金青年项目(ZR2020QC137)
国家自然科学基金青年项目(32102253)
国家现代苹果产业技术体系项目(CARS-27)
青岛农业大学研究生创新计划项目(QNYCX21046)。
关键词
苹果炭疽叶枯病
炭疽叶枯病菌
毒素钝化剂
复硝酚钠
apple Glomerella leaf spot
Glomerella cingulata
toxin deactivation agent
sodium nitrophenolate
