Erwinia persicina引起番茄细菌性叶斑病的鉴定  

Identification of bacterial leaf spot pathogens of tomato caused by Erwinia persicina

作　　者：陈如星 谢学文[1] 石延霞[1] 柴阿丽[1] 范腾飞 李磊 李宝聚[1] CHEN Ruxing;XIE Xuewen;SHI Yanxia;CHAI Ali;FAN Tengfei;LI Lei;LI Baoju(Insititute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China;Tianjin Agricultural College,Tianjin 300384,China)

机构地区：[1]中国农业科学院蔬菜花卉研究所,北京100081 [2]天津农学院,天津300384

出　　处：《植物病理学报》2023年第2期335-337,共3页Acta Phytopathologica Sinica

基　　金：国家重点研发计划(2020YFD1000300);中国农业科学院科技创新工程(CAAS-ASTIP-IVFCAAS);农业部园艺作物生物学与种质创制重点实验室项目。

摘　　要：番茄(Lycopersicon esculentum)属于茄科番茄属植物,含有丰富的营养物质,是人们喜欢的一种物美价廉的蔬菜。随着番茄种植面积不断扩大,细菌性病害的发生日趋严重,番茄细菌性叶斑病,主要为害番茄的茎、花、叶柄和果实[1]。2021年春季,发现山东省菏泽市东明县设施番茄温室,番茄植株表现出的症状与已报道的番茄细菌性叶斑病相似。叶片症状为不规则的褐色及深褐色斑点,随着病害的发展,斑点聚集变成叶片的坏死区.Bacterial leaf spot of tomato is a worldwide disease,which seriously affects the quality and yield of tomato because of its diverse routes of infestation,rapid spread and difficulty in control.To identify the pathogen of the disease,samples of tomato with leaf spots were collected and prepared for pathogen analysis.Five representative bacterial strains FQ21051401-FQ21051405 strains were isolated and purified from diseased tomato plants.Pathogenicity tests and re-isolation and re-identification of the bacteria were performed to confirm the isolate and fulfill the Koch′postulates.Based on morphological and biochemical characteristics,phylogenetic analysis,and Koch′s postulates,the bacterial isolates were identified as Erwinia persicina.The aim of this study was to isolate and identify the causal agent of bacterial leaf spot disease of tomato,which will provide a better understanding of pathogenesis of the E.persicina and provided a scientific basis for its control.

关 键 词：番茄细菌性叶斑病 细菌性病害 番茄种植 番茄属 番茄植株 褐色斑点 山东省菏泽市 东明县 

分 类 号：S641.2[农业科学—蔬菜学]