Abstract This work aimed to evaluate the effect of acid mist on microbial communities developed on mortar with same composition from the wall of the National Museum in Rio de Janeiro. Five autochthonous microbial groups were inoculated on coated with acrylic paint and uncoated mortar surfaces and submitted to acid mist or water mist for 100 days. A heterogeneous biofilm was well developed in uncoated coupons under acid mist. Molecular analysis revealed that the bacterial communities were structured according to the incubation condition. The impact of coating on bacterial community structure was more important than the acid mist effect. The eukaryotic community structure was not affected by the acid mist, whereas the impact of coating by paint has been observed. The alpha diversity indexes also varied according to the treatment. H’ and D were higher for uncoated conditions, particularly when submitted to acid mist. Actinobacteria, Chloroflexi, Cyanobacteria, Firmicutes and Proteobacteria were dominant. Additionally, eukaryotic community was not affected by the acid mist and paint and Tremellomycetes dominated.

中文翻译：

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评估酸雾对模拟巴西里约热内卢国家博物馆 Jardim da Princesa 墙壁的砂浆生物降解作用

摘要 这项工作旨在评估酸雾对在里约热内卢国家博物馆墙壁上具有相同成分的砂浆上发育的微生物群落的影响。将五个本土微生物群接种在涂有丙烯酸漆和未涂漆的砂浆表面，并置于酸雾或水雾中 100 天。在酸雾下未涂覆的试样中形成了异质生物膜。分子分析表明，细菌群落是根据培养条件构建的。涂层对细菌群落结构的影响比酸雾效应更重要。真核生物群落结构不受酸雾的影响，而油漆涂层的影响已被观察到。阿尔法多样性指数也因处理而异。H' 和 D 在未涂层条件下更高，尤其是在遇到酸雾时。放线菌、绿弯曲菌、蓝藻菌、厚壁菌门和变形菌门占优势。此外，真核生物群落不受酸雾和油漆的影响，以银耳菌为主。