Daylight exposure modulates bacterial communities associated with household dust. Dust metagenome

Microbial communities associated with indoor dust abound in the built environment. The transmission of sunlight through windows is a key building design consideration, but the effects of light exposure on dust communities remains unclear. We report results of an experiment and computational models designed to assess the effects of light exposure and wavelengths on the structure of the dust microbiome. Specifically, we placed household dust in replicate model "rooms" with windows that transmitted visible, ultraviolet, or no light and measured taxonomic compositions, absolute abundances, and viabilities of the resulting bacterial communities.

建筑环境中，与室内尘埃相关的微生物群落广泛分布。阳光透过窗户的透射是建筑设计的关键考量因素之一，但光照暴露对尘埃群落的影响仍不明确。本研究报道了一项实验与计算模型的研究成果，旨在评估光照暴露及其波长对尘埃微生物组（microbiome）结构的影响。具体而言，我们将家庭尘埃放置于可分别透过可见光、紫外线或完全不透光的多组重复模拟"房间"中，随后对所形成的细菌群落的分类组成、绝对丰度与生存活性进行了测定。