广西南瓜疫病的病原分离与鉴定  

Isolation and Identification of Causal Organism of Phytophthora Blight of Pumpkin in Nanning City of Guangxi

作　　者：程亮[1,2] 温国泉[3] 吴永官[2] 车江旅[2] 付岗[4] 蒋雅琴[2] 黎炎[2] 

机构地区：[1]广西大学农学院,广西南宁530005 [2]广西农业科学院蔬菜研究所,广西南宁530007 [3]广西农业科学院农业科技信息研究所,广西南宁530007 [4]广西农业科学院微生物研究所,广西南宁530007

出　　处：《西南农业学报》2014年第6期2398-2401,共4页Southwest China Journal of Agricultural Sciences

基　　金：广西自然科学基金项目(2012GXNSFBA053060);广西科技开发计划项目(桂科攻1222009-3C;桂科能14121008-1-15);广西农业科学院科技发展基金项目(桂农科-2012JM01;桂农科-2013JZ04;桂农科2013YM28);南宁市西乡塘区农业科技攻关项目(2013301)

摘　　要：南瓜疫病是南瓜生产中危害最严重的植物病害之一,主要为害南瓜的茎果,给南瓜生产上造成重大的经济损失。为明确广西南瓜疫病病原的分类地位,通过对南瓜疫病病原的致病性测定、形态特征观察及r DNA-ITS序列分析对病原进行鉴定,将引起广西南瓜疫病的病原鉴定为辣椒疫霉(Phytophthora capsici Leonian)。Phytophthora blight is one of the most serious threats to production of pumpkin in Guangxi province. It usually damages the stems and fruits and reduces the quality and yield of pumpkin. In this study,the causal organism of Phytophthora blight of pumpkin was isolated and cultivated. Its pathogenicity was also tested. Based on its morphological characteristics and ITS DNA sequences analysis,this pathogen was identified as Phytophthora capsici Leonian.

关 键 词：南瓜 疫病 病原鉴定 辣椒疫霉 

分 类 号：S436.42[农业科学—农业昆虫与害虫防治]