枯萎病原菌在黄瓜组培苗体内侵染特性的研究  

Infection Characteristics of Fusarium oxysporumin the Cucumber Seedlings Tissue

作　　者：肖荣凤[1] 刘波[1] 林抗美[1] 车建美[1] 葛慈斌[1] 

机构地区：[1]福建省农业科学院生物技术中心农业环保技术研究室,福建福州350003

出　　处：《厦门大学学报（自然科学版）》2004年第B08期94-96,共3页Journal of Xiamen University：Natural Science

基　　金：国家863计划项目(2002AA244031 2);福建省计委项目(闽计农经[2002]48号)资助

摘　　要：采用黄瓜枯萎病菌尖孢镰刀菌菌株F H.6.5 030318 J2接种黄瓜组培苗,研究该病原菌在植株体内侵染特性,结果表明:黄瓜枯萎病菌侵染植株是通过菌丝体在植株体内不断扩展,菌丝体可同时朝下与朝上扩展,接种4d菌丝体已到达根部组织,但从茎顶部组织未分离到病原菌;接种7d时菌丝体已到达植株茎杆各个部位.The separated cucumber wilt pathogenic strain of Fusarium oxysporum,F-H.6.5-030318-J2 was inoculated to the middle of cucumber stem in the tissue culture plantlet.The results indicated that the mycelia developed inside the cucumber tissue,which could extend in both directions into the root and the top stem.The pathogen reproduced more quickly toward the root than toward the top stem,in which the hypha be detected in roots 4 days after inoculating,but in the top of the stem 7 days after inoculating.

关 键 词：枯萎病原菌 黄瓜组培苗 体内侵染 尖孢镰刀菌 扩展 

分 类 号：S436.421.1[农业科学—农业昆虫与害虫防治]