单 位：
东北农业大学植保系;中国农业科学院植物保护研究所
摘 要：
1998～ 1999年在吉林省、辽宁省、黑龙江省等地的大棚番茄上发现一种番茄病害 ,并从其病叶、病茎杆上分离得到了 2 3个细菌菌株。接种番茄幼苗上 ,发病症状与自然发病症状完全一致 ,并从接种病株上重新分离到此病原细菌。各菌株致病力无明显的差异。经革兰氏染色反应、菌体形态、培养性状、生理生化反应、G+ C mol%等鉴定 ,确认该病原菌为丁香假单胞杆菌番茄致病变种 (Pseu-domonas syringae pv.tomato(Okabe) Young,Dye & Wilkie)。该病菌引起番茄细菌性斑点病 (又称叶斑病 )。病菌除侵染番茄外 ,尚能侵染茄子、辣椒、龙葵、白花曼陀罗和毛曼陀罗。该病害尚属我国大陆首次报道。
译 名：
PATHOGEN IDENTIFICATION OF BACTERIAL SPECK OF TOMATO
作 者：
ZHAO Ting chang, SUN Fu zai, SONG Wen sheng (Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100094,China)
关键词：
Pseudomonas syringae pv. tomato (Okabe) Young,Dye & Wilkie;tomato; pathogenicity
摘 要：
A new bacterial disease in tomato was first found in Jilin, Liaoning,Heilongjiang Provinces in 1998 1999. 23 strains were isolated from stems and leaves of tomato. Inoculation on tomato seedlings with the strains produced the same symptom as naturally infected plants. All 23 isolates were identified as Pseudomonas syringae pv. tomato (Okabe) Young, Dye & Wilkie by pathogenicity, stain reaction, morphological characterization, culturing pattern, physiological and biochemical reactions, and G+C mol%. The new disease was identified as bacterial speck of tomato. When the plants were inoculated, the speck symptoms only occured on tomato, pepper, eggplant, Jimsonweed, and Solanum nigrum , but not on potato and Franchet groungcherry.
