一个进化保存的横向获取的工具包使得微生物群能够被三虫向
Adam J Hart1, Lenshina A Mpeyako1, Nick P Bailey1
1Biosciences Institute, Newcastle University, Newcastle-upon-Tyne NE1 7RU, UK.
Molecular biology and evolution
|October 30, 2025
概括
特里科莫纳斯原生体拥有通过横向基因转移获得的分子工具包,以准细菌细胞壁. 这使得它们能够与微生物群竞争并利用它们,从而可能影响鸟类和哺乳动物的炎症性疾病.
科学领域:
- 微生物学 微生物学
- 进化生物学 进化生物学
- 单核细胞生物学 单核细胞生物学
背景情况:
- 特里科莫纳斯物种是微生物真核生物 (原生体),它们在粘膜表面共生.
- 这些原生体与各种宿主中的各种炎症性疾病有关,这些宿主也含有居民微生物群.
- 特里科莫纳斯的进化历史涉及宿主转移,包括从鸟类到哺乳动物的动物病.
研究的目的:
- 研究Trichomonas gallinae与微生物群中的细菌成员相互作用的分子机制.
- 为了确定Trichomonas物种中对微生物群相互作用的保存分子工具包.
- 了解这些相互作用在宿主适应和炎症性粘膜疾病中的作用.
主要方法:
- 与大肠杆菌共同培养的Trichomonas gallinae的比较转录学.
- 将转录组数据与比较基因组学和遗传学相结合.
- 分析保存的蛋白质编码基因,包括通过横向基因转移 (LGTs) 获得的基因.
主要成果:
- 在Trichomonas物种中确定了一个与细菌相互作用的分子工具包.
- 发现了编码muramidases,glucosaminidases和抗菌的保存基因,可能是通过LGT在鸟类祖先中获得的.
- 这些效应器向细菌细胞壁,影响鸟类和哺乳动物宿主中的微生物群组成.
结论:
- 特里科莫纳斯物种拥有一套工具,可以积极与其相关的微生物群竞争并利用它们的营养物质.
- 这种分子工具包可能会导致Trichomonas感染的失生症,并影响炎症性粘膜疾病.
- 向细菌群体的能力有助于Trichomonas适应多样化的宿主.
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