| 桔梗叶斑病病原细菌的鉴定 |
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| 引用本文： | 刘汉珍,郭坚华. 桔梗叶斑病病原细菌的鉴定[J]. 南京农业大学学报, 2002, 25(4): 41-44 |
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| 作者姓名： | 刘汉珍 郭坚华 |
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| 作者单位： | 1. 安徽技术师范学院,安徽凤阳233100
2. 南京农业大学植物保护学院,江苏南京210095 |
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| 摘 要： | 2000-2001年在江苏、浙江、安徽等地发现一种桔梗病害，并从其病叶上分离得到了26个菌株。菌株接种于桔梗叶片后，发病症状与自然发病症状完全一致，并从回接病株上重新分离得到此病原菌。各菌株间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）%等鉴定，确定该病原菌为丁香假单胞杆菌的一个新的致病变种。该病菌能引起桔梗细菌性叶斑病（又称斑点病）。
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| 关 键 词： | 桔梗 叶斑病病原细菌 鉴定 丁香假单胞杆菌 致病性 |
| 文章编号： | 2600-2030(2002)04-0041-04 |
| 修稿时间： | 2002-03-27 |
Pathogen identification of bacterial leaf spot of Platycodon grandiflorum |
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| LIU Han zhen ,GUO Jian hua. Pathogen identification of bacterial leaf spot of Platycodon grandiflorum[J]. Journal of Nanjing Agricultural University, 2002, 25(4): 41-44 |
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| Authors: | LIU Han zhen GUO Jian hua |
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| Affiliation: | LIU Han zhen 1,GUO Jian hua 2* |
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| Abstract: | A new bacterial disease,bacterial leaf spot in balloon flower root,was first found in Jiangsu,Zhejiang and Anhui during 2000? 2001.Twenty six strains were isolated from the diseased leaves of balloon flower root.Inoculation on balloon flower root seedings with the strains produced the same symptom as infected plants.All 26 isolates were identified as a new pathogenic pathovar of Pseudomonas syringae on Platycodon grandiflorum by pathogenicity,strain reactions,morphological characterization,culturing pattern,physiological and biochemical reactions,and(G+C)%.The name of the new pathovar was designated as Pseudomonas syringae pv. platycodon pv.nov. |
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| Keywords: | Platycodon grandiflorum leaf spot identification Pseudomonas syringae pathogenicity |
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