放大细菌食Acanthamoeba分离物的细胞内微生物组合
Binod Rayamajhee1, Mark Willcox1, Savitri Sharma2
1School of Optometry and Vision Science, Faculty of Medicine and Health, UNSW, Sydney, NSW 2052, Australia.
ISME communications
|March 19, 2024
概括
阿坎塔莫巴菌藏着来自四大类的细胞内细菌,在澳大利亚和印度的分离物中发现了不同的微生物模式. 这些发现突出了阿坎萨摩埃巴菌的存在.
科学领域:
- 微生物学 微生物学
- 寄生虫学的寄生虫学
- 分子生物学分子生物学
背景情况:
- 阿坎萨摩巴,一个自由生活的虫,是严重的眼睛感染 (阿坎萨摩巴角膜炎) 的新兴原因.
- 在自然环境中,Acanthamoeba 作为各种微生物的捕食者和宿主.
研究的目的:
- 来自澳大利亚和印度的不同Acanthamoeba物种中的细胞内微生物的特征.
- 调查阿坎塔梅巴作为细菌的宿主和载体的作用.
主要方法:
- 来自澳大利亚和印度的Acanthamoeba分离物的家族遗传学分析.
- 16S rRNA基因扩增序列测序用于识别细胞内细菌.
- 在现场杂交和电子显微镜以确认细菌的存在和复制.
主要成果:
- 41%的阿坎萨摩巴分离物中含有属于四个类型的细胞内细菌: Pseudomonadota, Bacteroidota, Actinomycetota 和 Bacillota.
- 在澳大利亚和印度分离物之间,以及角膜和水源之间,观察到明显的细菌丰度模式.
- 细胞内细菌被证实是可活的,并且在阿坎萨摩巴中经历二元裂变.
结论:
- 阿坎塔莫巴菌藏着各种各样的细胞内细菌,根据地理来源和隔离来源而有所不同.
- 这项研究证实了Acanthamoeba作为细胞内细菌的宿主和潜在载体的作用,包括潜在的人类病原体.
- 研究结果表明,阿坎塔莫巴菌及其细胞内微生物伙伴之间存在着共的生活方式.
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