白鲜皮中3种柠檬苦素化合物抗松材线虫作用研究  

Nematicidal Activity of Three Limonoids from Dictamnus dasycarps against Bursaphelenchus xylophilus

作　　者：于金英 高逸 孔振 汪冶[1] YU Jin-ying;GAO Yi;KONG Zhen;WANG Ye(Lishui University,Lishui 323000 China;Zhejiang Sci-Tech University,Hangzhou 310018,China;Lishui Liandu Forest Pest Control and Quarantine Station of Zhejiang,Lishui 323000,China)

机构地区：[1]丽水学院,浙江丽水323000 [2]浙江理工大学,浙江杭州310018 [3]丽水市莲都区森林病虫防治检疫站,浙江丽水323000

出　　处：《浙江林业科技》2022年第2期75-79,共5页Journal of Zhejiang Forestry Science and Technology

基　　金：丽水市科技计划项目(2019GYX07)。

摘　　要：对白鲜Dictamnus dasycarpus皮中3种柠檬苦素类化合物(梣酮、黄柏酮、吴茱萸内酯)进行分离鉴定,并采用浸渍法开展梣酮、黄柏酮、吴茱萸内酯毒杀松材线虫Bursaphelenchus xylophilus研究。结果表明,梣酮、黄柏酮、吴茱萸内酯对松材线虫均有一定的抑制作用,其对松材线虫的LC_(50)分别为9.78μg·mL^(-1)、15.99μg·mL^(-1)和17.91μg·mL^(-1),其中,梣酮在≥20μg·mL^(-1)时,毒杀松材线虫的校正死亡率>80%,杀线虫活性强。上述研究结果显示,白鲜皮柠檬苦素类化合物具有开发为新型植物源杀松材线虫剂的潜力。Three limonoids,namely Fraxinellone,Obacunone,Evodin were isolated from bark of Dictamnus dasycarps and were identified.Experiments were conducted on their nematicidal activity against Bursaphelenchus xylophilus.The results showed that Fraxinellone,Obacunone,Evodin had inhibitory effect on B.xylophilus.The LC_(50) for B.xylophilus was as follows:9.78μg/mL,15.99μg/mL and 17.91μg/mL.

关 键 词：白鲜 柠檬苦素类化合物 松材线虫 LC_(50) 

分 类 号：S482.51[农业科学—农药学]