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1986～1989年从湖南、浙江、江西3省23个县(市)采集白术根腐病病株样本231个,分离、接种获得单孢致病菌株29个,经鉴定其致病菌为尖镰孢菌(Fusarium oxysporum S chl.)和半裸镰孢菌(Fusariccm Semitectum Berk & Rav.),前者占多数,病菌生长最适温度为25～30℃,最适pH值为4.0～9.0;在PA培养基上产生大分生孢子最多;氮源以L-亮氨酸、L-(+)天冬氨酸、γ-氨基丁酸最好;碳源以葡萄糖、D-果糖、L-树胶醛糖为最好.寄主范围广,病菌在病残体上存活期在4年以上.
A total of 231 strains of Atractylodes japonica root rot were collected from 23 counties (cities) in Hunan, Zhejiang and Jiangxi provinces from 1986 to 1989. 29 isolates were isolated and inoculated. The pathogen was identified as a scythe Fusarium oxysporum S chl. And Fusariccm Semitectum Berk & Rav., The former accounted for the majority, the optimum temperature for pathogen growth was 25-30 ℃, and the optimum pH value was 4.0-9.0. In PA culture The most conidia were produced on the base. The nitrogen sources were L-leucine, L - (+) aspartic acid and γ-aminobutyric acid. The carbon sources were glucose, D-fructose and L- The best. Host a wide range of pathogens in the survived on the disabled in more than 4 years.