湖南农业大学学报（自然科学版）2024，Vol.50Issue(2)：65-70,6.DOI:10.13331/j.cnki.jhau.2024.02.010
拟石莲花属'碧桃'腐烂病病原菌的鉴定及其主要致病物质的测定
Identification of the pathogen causing rot disease on Echeveria cv.'Peach Pride'and determination of the main pathogenic substances
摘要
Abstract
The fungal pathogen was obtained from the leaves of Echeveria cv.'Peach Pride'with suspected rot disease based on tissue separation and single spore separation.According to morphological observation,molecular identification and pathogenicity test,this pathogen was identified as Fusarium oxysporum(F.oxysporum).The main pathogenic substances of F.oxysporum was determined,it was found that the pathogen has strong degrading enzyme activity on cell wall and the ability to produce toxins(fusaric acid),indicating that cel l wall degrading enzymes and toxins are the main factors for the pathogen's invading,colonizing and pathogenesis.关键词
拟石莲花属多肉植物/腐烂病/尖孢镰刀菌/细胞壁降解酶/镰刀菌酸Key words
Echeveria succulent plant/rot disease/Fusarium oxysporum/cell wall degrading enzyme/fusaric acid分类
农业科技引用本文复制引用
刘爽,张廷萍,薛治峰,刘杨,王婧,钱亚新,秦世雯..拟石莲花属'碧桃'腐烂病病原菌的鉴定及其主要致病物质的测定[J].湖南农业大学学报（自然科学版）,2024,50(2):65-70,6.基金项目
国家自然科学基金项目(32060593) （32060593）
云南省基础研究计划面上项目(202101AT070021) （202101AT070021）
