合欢枯萎病菌生物学特性研究  

Studies on Biological Characteristics of Fusarium oxysporum schl.f.sp.pernciosium

作　　者：刘慧芹[1] 王俊学[2] 梁晨[1] 

机构地区：[1]天津农学院园艺系 [2]天津农学院机电工程系,天津300384

出　　处：《天津农学院学报》2008年第4期32-34,共3页Journal of Tianjin Agricultural University

基　　金：天津农学院青年科技基金"合欢枯萎病菌毒素对合欢致病性的初步研究"(2006009)

摘　　要：以常规方法对合欢枯萎菌的生物学特性进行了研究。结果表明,该病菌可在5～35℃下生长,最适温度为25～30℃;病菌生长的pH值范围为4～10,最适pH值为6～7:病菌可在多种碳、氮源上生长,最佳碳源为蔗糖:菌丝生长和孢子萌发的最佳氮源分别为牛肉膏和氯化铵;病原菌致死温度为70℃。光暗交替有利于孢子萌发。The biological characteristics of Fusarium oxysporwm schl. f. sp. pernciosium were studied by common methods. The results show that F oxysporwm could grow between 5-35℃, and the optimum temperature was 25-30℃. The pH value was between 4-10, and 6-7 was the best. F oxysporwm could grow in many kinds of carbon and nitrogen sources, and the optimal source was sucrose. The optimum nitrogen sources for mycelia and spores were beef-exfract and ammonium chloride respectively. And the lethal temperature of F oxysporwm was 70℃, and the alternation of day and night was advantageous to germination of its spores.

关 键 词：合欢枯萎病 尖孢镰刀菌 生物学特性 

分 类 号：S435[农业科学—农业昆虫与害虫防治]