Active microbial biofilms in deep poor porous continental subsurface rocks
Entity
UAM. Departamento de Biología Molecular; Centro de Biología Molecular Severo Ochoa (CBM)Publisher
Nature Publishing GroupDate
2018-01-24Citation
10.1038/s41598-018-19903-z
Scientific Reports 8.1 (2018): 1538
ISSN
2045-2322DOI
10.1038/s41598-018-19903-zFunded by
Authors acknowledge the Advance ERC IPBSL grant 250–350 for the generation of samples and MINECO grant CGL2015-66242-R for the development of the work. C.E. is a predoctoral fellow from MINECO. M.V. Acknowledges Fondecyt Grant 1161007Project
Gobierno de España. CGL2015-66242-REditor's Version
https://doi.org/10.1038/s41598-018-19903-zSubjects
Deep continental subsurface; Biofilms; Porous subsurface rocks; Microbial; Biología y Biomedicina / BiologíaRights
© 2018 The Author(s)Abstract
Deep continental subsurface is defined as oligotrophic environments where microorganisms present a
very low metabolic rate. To date, due to the energetic cost of production and maintenance of biofilms,
their existence has not been considered in poor porous subsurface rocks. We applied fluorescence in
situ hybridization techniques and confocal laser scanning microscopy in samples from a continental
deep drilling project to analyze the prokaryotic diversity and distribution and the possible existence
of biofilms. Our results show the existence of natural microbial biofilms at all checked depths of the
Iberian Pyrite Belt (IPB) subsurface and the co-occurrence of bacteria and archaea in this environment.
This observation suggests that multi-species biofilms may be a common and widespread lifestyle in
subsurface environments
Files in this item
Google Scholar:Escudero, Cristina
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Vera, Mario
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Oggerin, Monike
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Amils Pibernat, Ricardo
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