葡萄的皮尔斯病:对致病细菌的隔离
M J Davis1, A H Purcell, S V Thomson
1Department of Plant Pathology, University of California, Berkeley, CA 94720, USA.
Science (New York, N.Y.)
|January 6, 1978
概括
一种导致皮尔斯病的细菌在葡萄藤中被识别并通过接种研究证实. 这种病原体与与杏仁叶烧伤有关的细菌无法区分,这表明葡萄藤和杏仁疾病之间存在潜在联系.
科学领域:
- 植物病理学 植物病理学
- 细菌学 细菌学是一门学科.
- 农业科学 农业科学
背景情况:
- 皮尔斯病 (Pierce's disease,PD) 是一种严重的葡萄树疾病.
- 从受PD影响的葡萄树上持续分离出一种特定的阴性杆状细菌.
研究的目的:
- 为了确认皮尔斯病在葡萄藤中的病因.
- 为了描述从患病的葡萄树中分离出来的细菌.
- 为了比较葡萄藤病原体与导致杏仁叶烧伤的细菌.
主要方法:
- 从受感染的葡萄树中分离的细菌.
- 用隔离的细菌对健康的葡萄树进行注射.
- 从注射植物中的细菌重新隔离和表征.
- 血清学和超结构性比较.
主要成果:
- 用分离的细菌接种的葡萄树产生了皮尔斯病的症状.
- 该细菌成功地从有症状的植物中重新分离出来.
- 葡萄藤病原体在血清学和超结构上无法与自然感染的植物中发现的细菌区分.
- 葡萄藤病原体也无法与患有叶烧病的杏仁树分离的细菌区分开来.
结论:
- 隔离的格兰氏阴性杆状细菌是皮尔斯病在葡萄藤中的致病原体.
- 该病原体与导致杏仁叶烧伤的细菌具有共同特征,这表明这些植物疾病之间存在潜在的共同点或关系.
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