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dc.contributor.authorJroundi, Fadwa
dc.contributor.authorElert, Kerstin
dc.contributor.authorRuiz-Agudo, Encarnación
dc.contributor.authorGonzález Muñoz, María Teresa 
dc.contributor.authorRodríguez Navarro, Carlos Manuel
dc.identifier.citationJroundi F, Elert K, Ruiz-Agudo E, Gonzalez-Muñoz MT and Rodriguez-Navarro C (2020) Bacterial Diversity Evolution in Maya Plaster and Stone Following a Bio-Conservation Treatment. Front. Microbiol. 11:599144. [doi: 10.3389/fmicb.2020.599144]es_ES
dc.description.abstractTo overcome the limitations of traditional conservation treatments used for protection and consolidation of stone and lime mortars and plasters, mostly based on polymers or alkoxysilanes, a novel treatment based on the activation of indigenous carbonatogenic bacteria has been recently proposed and applied both in the laboratory and in situ. Despite very positive results, little is known regarding its effect on the evolution of the indigenous bacterial communities, specially under hot and humid tropical conditions where proliferation of microorganisms is favored, as it is the case of the Maya area. Here, we studied changes in bacterial diversity of severely degraded tuff stone and lime plaster at the archeological Maya site of Copan (Honduras) after treatment with the patented sterile M-3P nutritional solution. High-throughput sequencing by Illumina MiSeq technology shows significant changes in the bacterial population of the treated stones, enhancing the development of Arthrobacter, Micrococcaceae, Nocardioides, Fictibacillus, and Streptomyces, and, in one case, Rubrobacter (carved stone blocks at Structure 18). In the lime plaster, Arthrobacter, Fictibacillus, Bacillus, Agrococcus, and Microbacterium dominated after treatment. Most of these detected genera have been shown to promote calcium carbonate biomineralization, thus implying that the novel bio-conservation treatment would be effective. Remarkably, the treatment induced the reduction or complete disappearance of deleterious acid-producing bacteria such as Marmoricola or the phylum Acidobacteria. The outcome of this study demonstrates that such a bio-conservation treatment can safely and effectively be applied on temples, sculptures and stuccos of the Maya area and, likely, in other hot and humid environments.es_ES
dc.description.sponsorshipSantander Program, Peabody Museum (Harvard University)es_ES
dc.description.sponsorshipDavid Rockefeller Center for Latin American Studies (DRCLAS) at Harvard University under the "Research and Conservation of Maya Sculpture" projectes_ES
dc.description.sponsorshipSpanish Government RTI2018-099565-B-I00es_ES
dc.description.sponsorshipJunta de Andalucía RNM-179 BIO 103es_ES
dc.description.sponsorshipUniversity of Granada (Unidad Científica de Excelencia) UCEPP2016-05es_ES
dc.publisherFrontiers Media SAes_ES
dc.rightsAtribución 3.0 España*
dc.subjectMaya areaes_ES
dc.subjectBacterial diversityes_ES
dc.subjectBioconsolidation treatmentes_ES
dc.subjectNutritional mediumes_ES
dc.subjectCarbonatogenic bacteriaes_ES
dc.subjectTuff stonees_ES
dc.titleBacterial Diversity Evolution in Maya Plaster and Stone Following a Bio-Conservation Treatmentes_ES

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Atribución 3.0 España
Except where otherwise noted, this item's license is described as Atribución 3.0 España