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Airborne bacteria in show caves from Southern Spain

AuthorsDomínguez-Moñino, Irene CSIC ORCID; Jurado, Valme CSIC ORCID; Rogerio Candelera, Miguel A. CSIC ORCID ; Hermosín, Bernardo CSIC ORCID ; Sáiz-Jiménez, Cesáreo CSIC ORCID
Airborne bacteria
Phototrophic biofilms
Issue Date4-Oct-2021
PublisherShared Science Publishers OG
CitationMicrobial Cell 8(10): 247–255 (2021)
AbstractThis work presents a study on the airborne bacteria recorded in three Andalusian show caves, subjected to different managements. The main differences within the caves were the absence of lighting and phototrophic biofilms in Cueva de Ardales, the periodic maintenance and low occurrence of phototrophic biofilms in Gruta de las Maravillas, and the abundance of phototrophic biofilms in speleothems and walls in Cueva del Tesoro. These factors conditioned the diversity of bacteria in the caves and therefore there are large differences among the CFU m, determined using a suction impact collector, equipment widely used in aerobiological studies. The study of the bacterial diversity, inside and outside the caves, indicates that the air is mostly populated by bacteria thriving in the subterranean environment. In addition, the diversity seems to be related with the presence of abundant phototrophic biofilms, but not with the number of visitors received by each cave.
Description8 páginas.- 2 figuras.- referencias.- All supplemental data for this article are available online at
Publisher version (URL)
Identifiersdoi: 10.15698/MIC2021.10.762
issn: 2311-2638
pmid: 34692820
Appears in Collections:(IRNAS) Artículos

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