草决明荚枯病病原鉴定  

Pathogen Identification of Legume Dieback of Cassia tora

作　　者：刘会香[1] 赵新兰[1] 牛福芳[1] 潘彦平[2] 刘爱新[1] 

机构地区：[1]山东农业大学植保学院,泰安271018 [2]北京市林业局保护站,北京100029

出　　处：《林业科学》2008年第10期94-97,175,共5页Scientia Silvae Sinicae

基　　金：国家自然科技资源共享平台项目“林业微生物菌种资源标准化整理、整合及共享试点”(2005DKA21207-19)

摘　　要：2006—2007年在山东农业大学中药材试验站栽培的药用植物草决明上发现一种新病害,定名为草决明荚枯病。该病主要危害荚果,荚果受害后均从尖端开始发病,使受害部分变褐枯死,不能正常结籽。从多个发病荚果中共分离到11株相同真菌分离物,针刺法接种荚果后均可引起荚果发病。根据该病原菌形态学特征、培养性状并结合rDNA-ITS序列分析,将引起草决明荚枯病的病原鉴定为葡萄座腔菌,这也是首次在草决明荚果上发现由该种病菌引起的病害。A new disease named legume dieback of Cassia tora was first found in Taian of Shandong Province during 2006-2007. The disease was mainly harmful for legumes. Initially, the tips of diseased legume were gray-green and legume dieback with the disease development. The diseased part of legume could not seed. Eleven strains were isolated from diseased legumes and the pathogenicity was tested in the legumes. Based on morphological characteristics, pathogenicity test and the sequence of ribosomal DNA-ITS, the pathogen was identified as Botryosphaeria dothidea Ces et de Not. This is the first report of legume dieback of Cassia tora.

关 键 词：草决明荚枯病 症状 病原鉴定 BOTRYOSPHAERIA dothidea 

分 类 号：S763.15[农业科学—森林保护学]