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A highly diverse, desert-like microbial biocenosis on solar panels in a Mediterranean city

Pedro Dorado-Morales, Cristina Vilanova, Juli Peretó, Franscisco M. Codoñer, Daniel Ramón, Manuel Porcar
doi: https://doi.org/10.1101/029660
Pedro Dorado-Morales
1Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, Paterna 46980, Spain
2Biopolis S.L., Parc Científic Universitat de València, Paterna, Valencia, Spain
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Cristina Vilanova
1Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, Paterna 46980, Spain
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Juli Peretó
1Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, Paterna 46980, Spain
3Departament de Bioquímica i Biologia Molecular, Universitat de València, Burjassot 46100, Spain
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Franscisco M. Codoñer
4Lifesequencing S.L., Parc Científic Universitat de València, Paterna, Spain.
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Daniel Ramón
2Biopolis S.L., Parc Científic Universitat de València, Paterna, Valencia, Spain
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Manuel Porcar
1Institut Cavanilles de Biodiversitat i Biologia Evolutiva, Universitat de València, Paterna 46980, Spain
5Fundació General de la Universitat de València, Spain.
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  • For correspondence: manuel.porcar@uv.es
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Abstract

Microorganisms colonize a wide range of natural and artificial environments although there are hardly any data on the microbial ecology of one the most widespread man-made extreme structures: solar panels. Here we show that solar panels in a Mediterranean city (Valencia, Spain) harbor a highly diverse microbial community with more than 500 different species per panel, most of which belong to drought-, heat- and radiation-adapted bacterial genera, and sun-irradiation adapted epiphytic fungi. The taxonomic and functional profiles of this microbial community and the characterization of selected culturable bacteria reveal the existence of a diverse mesophilic microbial community on the panels surface. This biocenosis proved to be more similar to the ones inhabiting deserts than to any human or urban microbial ecosystem. This unique microbial community shows different day/night proteomic profiles; it is dominated by reddish pigment- and sphingolipid-producers, and is adapted to withstand circadian cycles of high temperatures, desiccation and solar radiation.

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Posted November 30, 2015.
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A highly diverse, desert-like microbial biocenosis on solar panels in a Mediterranean city
Pedro Dorado-Morales, Cristina Vilanova, Juli Peretó, Franscisco M. Codoñer, Daniel Ramón, Manuel Porcar
bioRxiv 029660; doi: https://doi.org/10.1101/029660
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A highly diverse, desert-like microbial biocenosis on solar panels in a Mediterranean city
Pedro Dorado-Morales, Cristina Vilanova, Juli Peretó, Franscisco M. Codoñer, Daniel Ramón, Manuel Porcar
bioRxiv 029660; doi: https://doi.org/10.1101/029660

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