质粒编码并可以调动Pantoea agglomerans中的洋病原性
Gi Yoon Shin1, Jo Ann Asselin2, Amy Smith1
1Department of Plant Pathology, University of Georgia, Athens, GA 30602, United States.
The ISME journal
|January 30, 2025
概括
潘托亚聚合物会导致洋腐烂,但只有Phylogroup II中的特定菌株是致病的. 这些菌株在等离子体上具有HiVir集群,可以将致病性转移到非致病性菌株,影响洋疾病管理.
科学领域:
- 植物病理学 植物病理学
- 微生物基因组学 微生物基因组学
- 细菌学 细菌学是一门学科.
背景情况:
- 在美国,Pantoea agglomerans是已知导致洋球泡腐烂的原因.
- 并非所有P. agglomerans菌株都对洋具有致病性,因此需要对毒性菌株进行表征.
研究的目的:
- 为了识别区分洋病原性P. agglomerans菌株的遗传和基因组特征.
- 了解P. agglomerans中的等离子体和特定基因集群的作用,对洋的致病性.
主要方法:
- 从美国11个州的症状洋收集了300多种P. agglomerans菌株.
- 进行了P. agglomerans菌株的全基因组测序和遗传学分析.
- 研究了等离子体背景和基因含量,包括HiVir,alt和cop基因.
主要成果:
- 确定了两个不同的P. agglomerans族群; 族群II菌株对洋具有病原性.
- 致病菌株编码了HiVir pantaphos生物合成集群,这是一个关键的致病性因素.
- 体等离子体 (pCB1C) 已被证明可以将致病性转移到非致病性菌株,从而赋予硫酸盐耐受性和抗铜性.
结论:
- HiVir集群和特定的等离子体环境 (pOnion) 对P. agglomerans洋的致病性至关重要.
- 质粒在调解P. agglomerans-洋植物相互作用方面发挥着核心作用.
- 了解等离子体生态对于控制洋中的细菌疾病至关重要.
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