越南槐圆斑病病原鉴定  

Identification of the pathogen causing round leaf spot in Sophora tonkinensis

作　　者：蒋妮[1] 宋利沙 陈乾平[1] 冯世鑫[1] 白隆华[1] JIANG Ni;SONG Li-sha;CHEN Qian-ping;FENG Shi-xin;BAI Long-hua(Guangxi Botanical Garden of Medicinal Plants,Nanning 530023,China)

机构地区：[1]广西壮族自治区药用植物园,南宁530023

出　　处：《植物病理学报》2021年第3期460-463,共4页Acta Phytopathologica Sinica

基　　金：广西科技创新驱动项目(桂科AA17204056-4);广西药用植物园科技创新团队项目(2019003)。

摘　　要：豆科槐属多年生植物越南槐(Sophorɑtonkinensis Gagnep.)是我国传统中药材山豆根的基源植物,药用其干燥根及根茎,具有清热解毒、消肿利咽的功效,在历版《中华人民共和国药典》中均有收载[1]。广西是山豆根药材的道地产区[2],近年来随着山豆根市场需求的日益增大,越南槐在广西的种植面积由最初的60多公顷扩增至600多公顷。The pathogen causing round leaf spot of Sophora tonkinensis(Lour.)was identified by Koch’s postulates,morphological characteristics and combined gene sequences analysis on ITS,TUB,and ACT.The results showed that morphological characteristics of a pathogenic representative isolate SDG-1 was similar to that of Didymella glomerata.The isolate SDG-1 was clustered into one clade in phylogenetic tree with D.glomerata.Taken together,these results indicated that the round leaf spot of S.tonkinensis was caused by D.glomerata.This is the first report of a round leaf spot on S.tonkinensis was identified as D.glomerata.

关 键 词：病原鉴定 山豆根 多年生植物 传统中药材 圆斑病 越南槐 植物 药用 道地产区 

分 类 号：S432.44[农业科学—植物病理学]