Academic Journal
Metal contaminations impact archaeal community composition, abundance and function in remote alpine lakes
| العنوان: | Metal contaminations impact archaeal community composition, abundance and function in remote alpine lakes |
|---|---|
| المؤلفون: | Compte-Port, Sergi, Borrego, Carles, M, Moussard, Hélène, Jeanbille, Mathilde, Restrepo-Ortiz, Claudia Ximena, de Diego, Alberto, Rodriguez-Iruretagoiena, Azibar, Gredilla, Ainara, Fdez-Ortiz de Vallejuelo, Silvia, Galand, Pierre, Kalenitchenko, Dimitri, Rols, Jean-Luc, Pokrovsky, Oleg, Gonzalez, Aridane G., Camarero, Lluis, Muñiz, Selene, Navarro-Navarro, Enrique, Auguet, J.-C. |
| المساهمون: | Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ISSN: 1462-2912. |
| بيانات النشر: | HAL CCSD Society for Applied Microbiology and Wiley-Blackwell |
| سنة النشر: | 2018 |
| المجموعة: | HAL e2s UPPA (Université de Pau et des Pays de l'Adour) |
| مصطلحات موضوعية: | [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, [CHIM.POLY]Chemical Sciences/Polymers, [CHIM.MATE]Chemical Sciences/Material chemistry |
| الوصف: | International audience ; Using the 16S rRNA and mcrA genes, we investigated the composition, abundance and activity of sediment archaeal comm unities within 18 high-mountain lakes under contrasted metal levels from different origins (bedr ock erosion, past-mining ctivities and atmospheric depositions). Bathy archaeota, Eury archaeota and Woesear c haeota were the major phyla f ound at the meta-comm unity scale, representing 48%, 18.3% and 15.2% of the archaeal ommunity respectively. Metals were equall y important as physicochemical variable sin explaining the assemb lage of arc haeal communities and their ab undance. Methanogenesis appeared as a process of central importance in the carbon cycle within sediments of alpine lakes as indicated by the absolute ab undance of methanogen 16S rRNA andmcrA gene transcripts (10 5 to 10 9 copies g -1 ). We sho wed that methanogen ab undance and activity were significantl y reduced with increasing concentrations of Pb and C d, tw o indicators of airborne metal contami-nati ons. Considering the ecological importance of methanogenesis in sediment habitats, these metal contaminations may have system wide implications even in remote area such as alpine lakes. Overall, thiswork was pioneer in integrating the effect of long-range atmospheric depositions on archaeal communities and indicated that metal contamination might significantl y compromise the contribution of Archaea |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-01836458; https://hal.science/hal-01836458 |
| DOI: | 10.1111/1462-2920.14252 |
| الاتاحة: | https://hal.science/hal-01836458 https://doi.org/10.1111/1462-2920.14252 |
| رقم الانضمام: | edsbas.258BA5D1 |
| قاعدة البيانات: | BASE |
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