甘草根腐病病原菌鉴定  

Identification of the pathogens causing root rot of Glycyrrhiza uralensis Fisch

作　　者：曹雪梅[1] 李生兵 张惠玲 胡小平[1] 

机构地区：[1]旱区作物逆境生物学国家重点实验室/西北农林科技大学植保学院,杨凌712100 [2]宁夏盐池县科技局,盐池751500

出　　处：《植物病理学报》2014年第2期213-216,共4页Acta Phytopathologica Sinica

基　　金：宁陕科技合作项目资助;高等学校学科创新引智计划资助(B07049)

摘　　要：甘草（Glycyrrhiza uralensisFish．）别名甜草、蜜草、甜根子，为豆科多年生草本植物，以根与根茎人药，具有补脾益气、清热解毒、祛痰止咳、缓急止痛、调和诸药之功效，是我国临床常用的中药材，也可用作食品添加剂。甘草主要分布在我国的内蒙古、甘肃和宁夏，在青海、陕西、新疆、黑龙江、辽宁、吉林、河北、山西等地局部地区也有分布。宁夏盐池县是我国乌拉尔甘草的重要产区，面积大、贮量多、品质好，1995年被誉为“中国甘草之乡”。The diseased roots of Glycyrrhiza uralensis with root rot symptom were sampled in Ningxia, China. Seventy eight fungal isolates were finally isolated from the materials and the pathogens were identified according to Koch＇ s postulate. Fusarium solani and Fusarium oxysporum were found to be pathogenic to G. uralensis plants. Based on the morphological characteristics and sequence analysis of EF-I~, the representative isolates G013 and FLR were identified as F. solani and F. oxysporum, respectively. The host range test showed that the two pathogens could also infect Solanum tuberosum and Glycine max, but not Triticum aestivum Linn, Vigna unguiculata, Medicago sativa, Phaseolus vulgaris, Cucumis sativus Linn, Solanum melongena L. , Capsicum frutescens, Solanum lycopersicum, Zea mays L. and Gossypium spp.. This is the first report of root rot caused by F. solani and F. oxysporum on G. uralensis in China.

关 键 词：乌拉尔甘草 病原菌鉴定 根腐病 多年生草本植物 食品添加剂 清热解毒 中药材 内蒙古 

分 类 号：S567.71[农业科学—中草药栽培]