核农学报2025，Vol.39Issue(5)：927-933,7.DOI:10.11869/j.issn.1000-8551.2025.05.0927
奇楠型白木香炭疽病病原菌的分离鉴定及药剂筛选
Isolation,Identification and Fungicide Screening of Pathogen for Anthracnose of Qinan Aquilaria sinensis
摘要
Abstract
In order to confirm the pathogen of anthracnose in Qinan Aquilaria sinensis,and characterize its biological characteristics while screening effective agents against to anthracnose,the pathogen was isolated through tissue separation method and its pathogenicity was determined with Koch postulates.Combining morphological and molecular biological analysis,BMXYB1 was identified as Colletotrichum gloeosporioides.Biological characteristics revealed that the optimum temperature for mycelial growth was 28 ℃,the optimum pH value was 6.0,the optimum medium was potato dextrose agar medium(PDA).The optimal nitrogen sourcc for pathogen growth was potassium nitrate and the optimal carbon source was glucose.The results of fungicide virulence showed that 430 g·L-1 tebuconazole and 250 g·L-1 propiconazole had strong inhibitory effects on the fungal,with the EC50 of 0.773 1 and 0.451 2 mg·L-1,respectively.This study provides scientific basis for effective prevention and control of anthracnose.关键词
奇楠型白木香/炭疽病/胶孢炭疽菌/药剂防治Key words
Aquilaria sinensis/anthracnose/Colletotrichum gloeosporioide/fungicide selection引用本文复制引用
梁慧,张玉音,窦桦,张赵麒,陈旭玉..奇楠型白木香炭疽病病原菌的分离鉴定及药剂筛选[J].核农学报,2025,39(5):927-933,7.基金项目
海南省重点研发计划项目(ZDYF2022SHFZ035),国家重点研发计划项目(2022YFC3501504),中国医学科学院医学与健康科技创新工程项目[(2021-I2M-1-032)HFZ035] （ZDYF2022SHFZ035）
