Legionella relative abundance in shower hose biofilms is associated with specific microbiome members.

Alessio Cavallaro, William J Rhoads, Émile Sylvestre, Thierry Marti, Jean-Claude Walser, Frederik Hammes
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引用次数: 1

Abstract

Legionella are natural inhabitants of building plumbing biofilms, where interactions with other microorganisms influence their survival, proliferation, and death. Here, we investigated the associations of Legionella with bacterial and eukaryotic microbiomes in biofilm samples extracted from 85 shower hoses of a multiunit residential building. Legionella spp. relative abundance in the biofilms ranged between 0-7.8%, of which only 0-0.46% was L. pneumophila. Our data suggest that some microbiome members were associated with high (e.g. Chthonomonas, Vrihiamoeba) or low (e.g. Aquabacterium, Vannella) Legionella relative abundance. The correlations of the different Legionella variants (30 Zero-Radius OTUs detected) showed distinct patterns, suggesting separate ecological niches occupied by different Legionella species. This study provides insights into the ecology of Legionella with respect to: (i) the colonization of a high number of real shower hoses biofilm samples; (ii) the ecological meaning of associations between Legionella and co-occurring bacterial/eukaryotic organisms; (iii) critical points and future directions of microbial-interaction-based-ecological-investigations.

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军团菌在淋浴软管生物膜中的相对丰度与特定微生物组成员有关。
军团菌是建筑管道生物膜的天然居民,与其他微生物的相互作用影响它们的生存、增殖和死亡。在这里,我们研究了从多单元住宅楼的85个淋浴软管中提取的生物膜样品中军团菌与细菌和真核微生物组的关系。军团菌在生物膜中的相对丰度为0 ~ 7.8%,其中嗜肺乳杆菌的相对丰度仅为0 ~ 0.46%。我们的数据表明,一些微生物组成员与军团菌的相对丰度高(如Chthonomonas, Vrihiamoeba)或低(如水藻菌,Vannella)相关。不同军团菌变异(检测到30个零半径otu)的相关性表现出不同的模式,表明不同军团菌占据不同的生态位。本研究提供了关于军团菌生态学的见解:(i)大量真实淋浴软管生物膜样品的定植;军团菌与共生细菌/真核生物之间关联的生态学意义;(iii)基于微生物相互作用的生态学研究的关键点和未来方向。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.30
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审稿时长
15 weeks
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