摘要
通过采集或交流的方式共得到海南、广东、福建、云南和广西等省区的29个市县的57个粉蕉枯萎病病原菌1号小种(Fusarium oxysporum f.sp.cubense Race 1)菌株,并利用盆栽伤根淋灌法接种粉蕉苗,系统评价了57个Race 1菌株的致病力。结果表明:供试的57个Race 1菌株表现出很明显的致病力分化,其中,强致病力的菌株有32个、中致病力的有23个、弱致病力的有2个,分别占供试菌株的56.14%,40.35%,3.51%。供试的粉蕉枯萎病病原菌1号小种存在着明显的致病力分化现象,已分化为强、中和弱3种致病型,强致病力菌株为优势菌株。
57 isolates of Fusarium oxysporum f.sp.cubense Race 1 （FOC Race 1） were collected from the 29 cities of Hainan,Guangdong,Fujian,Yunnan and Guangxi provinces and then inoculated onto tissue cultured plants of banana Fenjiao （Musa spp.ABB） by using root scratching inoculation method for assessment of their pathogenicity.The results showed that these isolates gave obviously differentiated pathogenicity,of which 32 isolates were highly pathogenic,23 isolates moderately pathogenic and 2 isolates weakly pathogenic,making up 56.14％,40.35％ and 3.51％ of the total isolates,respectively.The highly pathogenic isolates can be used as dominant ones for breeding of banana varieties tolerant to FOC Race 1.
出处
《热带生物学报》
2014年第2期136-141,146,共7页
Journal of Tropical Biology
基金
国家香蕉技术产业体系综合防控岗位(nycytx-33-05)
海南省重点科技计划项目(ZDXM20130044)
