黑龙江省马铃薯干腐病菌种类鉴定及致病性  

Identification of species and pathogenicity of the Fusarium on potato in Heilongjiang Province

作　　者：闵凡祥[1] 王晓丹[1] 胡林双[1] 魏琪[1] 董学志[1] 李凤兰[2] 李鹤春[2] 刘伟婷[1] 郭梅[1] 

机构地区：[1]黑龙江省农业科学院脱毒苗木所,哈尔滨150086 [2]东北农业大学,哈尔滨150030

出　　处：《植物保护》2010年第4期112-115,119,共5页Plant Protection

基　　金：国家马铃薯产业创新体系(NYCYTX-15);"948"项目(2008-Z23);黑龙江省科技攻关项目(GA088102);黑龙江省博士后基金项目(LBHZ07025)

摘　　要：本研究将采自黑龙江省不同地区的马铃薯干腐病病样进行分离和病原菌纯化,得到27个镰刀菌菌株,通过致病性鉴定,其中的18个菌株具有致病性。运用培养性状和形态特征综合分析的方法,对上述18个菌株进行鉴定,结果显示为6种镰刀菌,分别为拟枝孢镰孢(Fusarium sporotrioides)、茄镰孢(F.solani)、接骨木镰孢(F.sam-bucinum)、拟丝孢镰孢(F.trichothecioides)、燕麦镰孢(F.avenaceum)和茄病镰孢蓝色变种(F.solanivar.coerule-um)。同时对上述6种镰刀菌进行致病性测定,结果表明不同种类镰刀菌致病性不同,以接骨木镰孢、燕麦镰孢和拟丝孢镰孢致病力最强,拟枝孢镰孢致病力最弱。Samples of potato dry rot were collected from different areas in Heilongjiang Province for isolation and pathogen purification in this study. Twenty-seven Fusarium strains were obtained, among which 18 were pathogenic and 6 were identified as Fusariurn species through culture and morphological analyses. They are F. sporotr^- oides , F. solani , F. sambucinum , F. trichothecioides , F. avcnaceurn and F. solani var. coeruleum. The pathogenicity of these strains was tested and the results showed that the pathogenicity of different strains varied. The most pathogenic strains were F. sambucinum , F. avenaceum and F. trichothecioides , while F. sporotrioides was the least pathogenic.

关 键 词：马铃薯干腐病 镰刀菌 致病性 

分 类 号：S435.32[农业科学—农业昆虫与害虫防治]