基因型变异和物种间相互作用改变了Xanthomonas retroflexus的基因表达和生物膜形成
Samuel Jacquiod1, Nanna Mee Coops Olsen2, Manuel Blouin1
1Agroécologie, INRAE, Institut Agro Dijon, Université de Bourgogne, University Bourgogne Franche-Comté, Dijon, France.
Environmental microbiology
|September 22, 2023
概括
共同培养的细菌揭示了一种纹突变体 (XRW),该突变体显著增加了生物膜的产生. 这种增强的生物膜形成是由XRW突变和Paenibacillus amylolyticus (PA) 信号之间的相互作用引起的.
科学领域:
- 微生物生态学 微生物生态学
- 进化生物学 进化生物学
- 细菌学 细菌学是一门学科.
背景情况:
- 多种生物膜对于理解微生物相互作用的演化至关重要.
- 与Paenibacillus amylolyticus (PA) 共同培养Xanthomonas retroflexus (XR) 产生了一种纹突变物 (XRW),其生物膜产量增加.
- 驱动这种相互作用的具体机制以及XR和PA的作用在很大程度上是未知的.
研究的目的:
- 研究分泌分子线索在XR,XRW和PA之间的相互作用中的作用.
- 阐明导致XRW中增强生物膜生产的遗传和环境因素.
主要方法:
- RNA测序 (RNA-seq) 用于分析XRW中的基因表达变化.
- 殖民地形成单位 (CFU) 估计量化细菌种群.
- 生物膜量化测试和显微镜测试以评估生物膜结构和生产.
- 暴露于XR和XRW的PA或其上游物.
主要成果:
- 与野生型XR相比,XRW中的突变改变了基因表达和增加了CFU计数.
- 与PA或其超级生物共同培养XRW掩盖了大多数突变诱导的基因表达变化.
- 与久坐的生活方式相关的基因在与PA相互作用时在XRW上调,与增加的生物膜产量相关.
结论:
- 在XRW中增强生物膜的产生是其基因突变和PA的环境信号之间的相互作用的结果.
- 参与环境传感的调节基因对于理解这些复杂的微生物相互作用至关重要.
- 该研究强调了在微生物社区动态中考虑遗传倾向和生物相互作用的重要性.
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