短穗竹上一种异香柱菌的形态学及分子鉴定  

Identification of Heteroepichlo species on Brachystachyum densiflorum by morphology and phylogeny

作　　者：程燕林[1] 侯成林[1] 高健[2] 

机构地区：[1]首都师范大学生命科学学院 [2]国际竹藤网络中心国家林业局竹藤科学与技术重点开放实验室

出　　处：《北京林业大学学报》2009年第1期84-90,共7页Journal of Beijing Forestry University

基　　金：“948”国家林业局引进项目(2006-4-71)

摘　　要：竹丛枝病可由多种病原引起,竹生香柱菌即是其中的一类,包括箣竹香柱菌(Epichloё bambusae)和箬竹香柱菌(Epichloё sasae)两种。日本学者Tanaka根据形态结合分子的研究结果,将其更名为箣竹异香柱菌(Heteroepichloё bambusae)和箬竹异香柱菌(Heteroepichloё sasae)。该文作者于2007年5月底从安徽省广德县的短穗竹上采集到1种异香柱型丛枝病标本,对其病原菌的形态学和培养特征进行观察描述,并利用ITS rDNA序列对其系统发育学进行分析,最终确定该菌为箬竹异香柱菌,而不是先前认为的箣竹异香柱菌。鉴于国内有关其他寄主上的竹生异香柱菌的描述模糊,并且绘图非常简单,因此建议对我国竹生的异香柱菌形态学和寄主范围进行研究,特别是利用分子生物学手段确定它们的分类学地位。Witches＇ broom can be caused by several kinds of fungi. Among them, Epichloe species are common including E. sasae and E. bambusae, now named as Heteroepichloe bambusae and Heteroepichloe sasae based on the study of Tanaka in 2002. The authors collected specimens on Brachystachyum densiflorum in the end of May of 2007, which suffered from Heteroepichloe-witches＇ broom. The morphology, biology, and sequence analysis of ITS rDNA were used for this fungus. It was finally determined to be H. sasae rather than H. bambusae. The species of Heteroepichloe （under the name Epichloe ） were formerly described and illustrated very simply in China. Therefore, host spectrum, morphology and molecular biology should be integrated for the study of Heteroepichloe species on bamboo in China.

关 键 词：短穗竹 丛枝病 竹异香柱菌 系统发育分析 

分 类 号：S763.1[农业科学—森林保护学] S795[农业科学—林学]