Peatland Pond Microbiome and Biogeochemical Responses to Solar Radiation Extremes in a High-Altitude Wetland, Salar de Huasco, Chile

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dc.contributor.authorEissler, Yoanna
dc.contributor.authorYanez-Montalvo, Alfredo
dc.contributor.authorCelis-Pla, Paula S. M
dc.contributor.authorCornejo-D'Ottone, Marcela
dc.contributor.authorTrabal, Andres
dc.contributor.authorDorador, Cristina
dc.contributor.authorPiccini, Claudia
dc.contributor.authorFalcon, Luisa I
dc.contributor.authorRomero, Carlos
dc.contributor.authorAguilar-Munoz, Polette
dc.contributor.authorMolina, Veronica
dc.date.accessioned2026-08-28T01:43:18Z
dc.date.available2026-08-28T01:43:18Z
dc.date.issued2025
dc.description.abstractHigh-altitude wetland holds unique peatland ponds subjected to extreme diel environmental condition changes. Herein, we evaluate the response of photoautotrophic and nitrification activities and compare it with bacteria and archaea composition shifts in sediment and water changes during key hours of the day. Results indicate the presence of photo-inhibition, including ammonia oxidizers, but a high recovery of photosynthetic activities in the microbial mat and of potential specific functional groups towards the afternoon. The microbial community was composed of 45 phyla, mainly proteobacteria from Alpha-, Delta-, and Gammaproteobacteria and Bacteroidota in the water and sediments, and these later groups were notoriously enriched during the afternoon. The microbial community composition changes were associated with chlorophyll a, nutrients, and greenhouse gases reservoir variability, including methane potential release towards the atmosphere at hours of high radiation. Peatland pond microbial communities and their biogeochemical contribution change in a complex interplay coupled by time to environmental conditions predominantly driven by the extreme solar radiation.
dc.description.sponsorshipFONDECYT 1181773, 1211977; ANID ANILLO (MESS) ATE24002; FONDECYT 3240498; Centro de Neurobiología y Fisiopatología Integrativa (CENFI), DIUV-CI # 01/2006); UNAM-PAPIIT IN204224; scholarship from CONACyT, Mexico.; “Convocatoria Pago de procesamiento de Artículos año 2025, InES Género, Dirección General de Investigación, Universidad de Playa Ancha de Ciencias de la Educación, Chile (D.E. 0282/2025)”
dc.identifier.doi10.3390/microorganisms13091990
dc.identifier.issn2076-2607
dc.identifier.urihttps://repositorioabierto.uantof.cl/handle/uantof/722
dc.language.isoen
dc.publisherMDPI
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceMicroorganisms
dc.subjectchlorophyll a
dc.subjectUV radiation
dc.subjectgreenhouse gases
dc.subjectnutrient rates
dc.subjectmicrobial community
dc.subjectdiel patterns
dc.subjecthigh-altitude wetland
dc.subjectSalar de Huasco
dc.titlePeatland Pond Microbiome and Biogeochemical Responses to Solar Radiation Extremes in a High-Altitude Wetland, Salar de Huasco, Chile
dc.typeArticle
oaire.citation.volume13
oaire.citationIssue9
organization.identifier.rorhttps://ror.org/04eyc6d95
organization.legalNameUniversidad de Antofagasta
uantof.identificator.departmentDepartamento de Biotecnología
uantof.identificator.facultyFacultad de Ciencias del Mar y Recursos Biológicos
uantof.identificator.instituteInstituto Antofagasta
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