广西苦瓜蔓枯病的病原分离与鉴定  

Identification of causal organism of gummy stem blight of balsam pear in Guangxi

作　　者：秦健[1,2] 陈振东[1,2] 宋焕忠[1] 黄如葵[1] 梁家作[1] 刘杏连[1] 郭元元[1,2] QIN Jian1,2, CHEN Zhen-dong1,2., SONG Huan-zhong1 , HUANG Ru-kui1 , LIANG Jia-zuo1 , LIU Xing-lian1, GUO Yuan-yuan1,2(1 Vegetable Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China; 2 Guangxi Crop Genetic Improvement and Biotechnology Lab, Nanning 530007, Chin)

机构地区：[1]广西农业科学院蔬菜研究所,南宁530007 [2]广西作物遗传改良生物技术重点开放实验室,南宁530007

出　　处：《植物病理学报》2018年第2期280-284,共5页Acta Phytopathologica Sinica

基　　金：广西科技计划项目(桂科AD16380055);广西农业科学院优势学科团队项目(桂农科2016YT01);广西农业科学院重点项目(桂农科2016JZ04);现代农业产业技术体系专项项目(CARS-25);广西科技重大专项(桂科AA17204039)

摘　　要：苦瓜（MomordicacharantiaL．），为葫芦科苦瓜属蔓生草本植物．既可作为蔬菜食用，也可以作为药材。还是我国“南菜北运”的重要瓜类蔬菜。随着苦瓜栽培面积的不断扩大，特别是设施大棚栽培面积的扩大，苦瓜蔓枯病的发生为害日趋严重。近年来，广西部分设施大棚中苦瓜植株蔓枯病发病率超过80％，造成严重的经济损失。Gummy stem blight, usually seen on the stems, leaves and fruits, is one of the most serious threats to production of balsam pear （Momordica charantia L. ） in Guangxi with reduction of the quality and heavy losses in yield. The pathogenic organisms of the disease were still obscure because several fungal species with most. similar morphology were reported to be the causative agents. In this paper, the isolate in imperfect stage from the samples of gummy stem blight of balsam pear in Guangxi was identified as Stagonosporopsis cucurbita- cearumbased on the morphological characteristics, inoculation experiments and phylogenetic analysis with rDNA- ITS sequences.

关 键 词：蔓枯病 苦瓜 病原分离 鉴定 广西 瓜类蔬菜 栽培面积 草本植物 

分 类 号：S436.429[农业科学—农业昆虫与害虫防治]