大血藤炭疽病的病原鉴定及病害分析.PDFVIP

中国农学通报 2012,28(15):207-210 Chinese Agricultural Science Bulletin 大血藤炭疽病的病原鉴定及病害分析 张国辉，蔡凌云，张文华，刘冬莲，陶 敏 （凯里学院环境与生命科学分院，贵州凯里556011） 摘 要：为了防治大血藤炭疽病，通过组织分离法从病果中分离得到病原菌，并对病原菌进行培养、孢子 大小测定和鉴定。显微镜镜检的病原菌特征表明，引起大血藤炭疽病的是炭疽菌(Colletotrichum sp.) ， 测微尺测量大血藤炭疽菌的孢子大小为(5.2~6.5) μm ×(13.0~33.8) μm ，结合寄主和病原特征，表明引起 大血藤炭疽病的病原菌为胶孢炭疽菌(Colletotrichum gloeosp orioides) 。胶孢炭疽菌(Colletotrichum gloeosp orioides) 引起贵州省黔东南州的大血藤炭疽病，可以通过农业防治和药剂防治来减少病害的危 害。 关键词：大血藤；炭疽病；胶孢炭疽菌；病害防治 中图分类号：S4 文献标志码：A 论文编号：2011-2722 IdentificationofPathogenandDiseaseAnalysisofSargentodoxacuneata Zhang Guohui, Cai Lingyun, Zhang Wenhua, Liu Donglian, Tao Min (DepartmentofEnvironmentBiologicalScience,KailiCollege, Kaili Guizhou 556011) Abstract: The aim was to prevent anthracnose of Sargentodoxa cuneata in Qian Dongnan State of Guizhou Province. The pathogen was obtained by tissue isolation, and identified by separation, spores size determination and cultivation in this experiment. The microscopic examination method showed that, the disease was caused by Colletotrichum sp., and the spores were (5.2-6.5) μm × (13.0-33.8) μm through size determination. Based on the host and pathogenic feature, the pathogen was Colletotrichum gloeosporioides. The disease of Sargentodoxa cuneata was caused by Colletotrichum gloeosporioides. in Qian Dongnan State of Guizhou Province, and the disease could be reduced through agricultural measures and chemical control. Keywords:Sargentodoxa cuneata; anthracnose; Colletotrichum gloeosporioides; disease prevention 0 引言 培，并可作矮化盆栽观果。大血藤具有清热解毒，活 大 血 藤 [Sargentodoxa cuneata (Oliv.) Rehd. 血，祛风的