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Ecosystem Composition Controls the Fate of Rare Earth Elements during Incipient Soil Genesis
The rare earth elements (REE) are increasingly important in a variety of science and economic fields, including (bio)geosciences, paleoecology, astrobiology, and mining. However, REE distribution in early rock-microbe-plant systems has remained elusive. We tested the hypothesis that REE mass-partiti...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5322375/ https://www.ncbi.nlm.nih.gov/pubmed/28230202 http://dx.doi.org/10.1038/srep43208 |
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author | Zaharescu, Dragos G. Burghelea, Carmen I. Dontsova, Katerina Presler, Jennifer K. Maier, Raina M. Huxman, Travis Domanik, Kenneth J. Hunt, Edward A. Amistadi, Mary K. Gaddis, Emily E. Palacios-Menendez, Maria A. Vaquera-Ibarra, Maria O. Chorover, Jon |
author_facet | Zaharescu, Dragos G. Burghelea, Carmen I. Dontsova, Katerina Presler, Jennifer K. Maier, Raina M. Huxman, Travis Domanik, Kenneth J. Hunt, Edward A. Amistadi, Mary K. Gaddis, Emily E. Palacios-Menendez, Maria A. Vaquera-Ibarra, Maria O. Chorover, Jon |
author_sort | Zaharescu, Dragos G. |
collection | PubMed |
description | The rare earth elements (REE) are increasingly important in a variety of science and economic fields, including (bio)geosciences, paleoecology, astrobiology, and mining. However, REE distribution in early rock-microbe-plant systems has remained elusive. We tested the hypothesis that REE mass-partitioning during incipient weathering of basalt, rhyolite, granite and schist depends on the activity of microbes, vascular plants (Buffalo grass), and arbuscular mycorrhiza. Pore-water element abundances revealed a rapid transition from abiotic to biotic signatures of weathering, the latter associated with smaller aqueous loss and larger plant uptake. Abiotic dissolution was 39% of total denudation in plant-microbes-mycorrhiza treatment. Microbes incremented denudation, particularly in rhyolite, and this resulted in decreased bioavailable solid pools in this rock. Total mobilization (aqueous + uptake) was ten times greater in planted compared to abiotic treatments, REE masses in plant generally exceeding those in water. Larger plants increased bioavailable solid pools, consistent with enhanced soil genesis. Mycorrhiza generally had a positive effect on total mobilization. The main mechanism behind incipient REE weathering was carbonation enhanced by biotic respiration, the denudation patterns being largely dictated by mineralogy. A consistent biotic signature was observed in La:phosphate and mobilization: solid pool ratios, and in the pattern of denudation and uptake. |
format | Online Article Text |
id | pubmed-5322375 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-53223752017-03-01 Ecosystem Composition Controls the Fate of Rare Earth Elements during Incipient Soil Genesis Zaharescu, Dragos G. Burghelea, Carmen I. Dontsova, Katerina Presler, Jennifer K. Maier, Raina M. Huxman, Travis Domanik, Kenneth J. Hunt, Edward A. Amistadi, Mary K. Gaddis, Emily E. Palacios-Menendez, Maria A. Vaquera-Ibarra, Maria O. Chorover, Jon Sci Rep Article The rare earth elements (REE) are increasingly important in a variety of science and economic fields, including (bio)geosciences, paleoecology, astrobiology, and mining. However, REE distribution in early rock-microbe-plant systems has remained elusive. We tested the hypothesis that REE mass-partitioning during incipient weathering of basalt, rhyolite, granite and schist depends on the activity of microbes, vascular plants (Buffalo grass), and arbuscular mycorrhiza. Pore-water element abundances revealed a rapid transition from abiotic to biotic signatures of weathering, the latter associated with smaller aqueous loss and larger plant uptake. Abiotic dissolution was 39% of total denudation in plant-microbes-mycorrhiza treatment. Microbes incremented denudation, particularly in rhyolite, and this resulted in decreased bioavailable solid pools in this rock. Total mobilization (aqueous + uptake) was ten times greater in planted compared to abiotic treatments, REE masses in plant generally exceeding those in water. Larger plants increased bioavailable solid pools, consistent with enhanced soil genesis. Mycorrhiza generally had a positive effect on total mobilization. The main mechanism behind incipient REE weathering was carbonation enhanced by biotic respiration, the denudation patterns being largely dictated by mineralogy. A consistent biotic signature was observed in La:phosphate and mobilization: solid pool ratios, and in the pattern of denudation and uptake. Nature Publishing Group 2017-02-23 /pmc/articles/PMC5322375/ /pubmed/28230202 http://dx.doi.org/10.1038/srep43208 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Zaharescu, Dragos G. Burghelea, Carmen I. Dontsova, Katerina Presler, Jennifer K. Maier, Raina M. Huxman, Travis Domanik, Kenneth J. Hunt, Edward A. Amistadi, Mary K. Gaddis, Emily E. Palacios-Menendez, Maria A. Vaquera-Ibarra, Maria O. Chorover, Jon Ecosystem Composition Controls the Fate of Rare Earth Elements during Incipient Soil Genesis |
title | Ecosystem Composition Controls the Fate of Rare Earth Elements during Incipient Soil Genesis |
title_full | Ecosystem Composition Controls the Fate of Rare Earth Elements during Incipient Soil Genesis |
title_fullStr | Ecosystem Composition Controls the Fate of Rare Earth Elements during Incipient Soil Genesis |
title_full_unstemmed | Ecosystem Composition Controls the Fate of Rare Earth Elements during Incipient Soil Genesis |
title_short | Ecosystem Composition Controls the Fate of Rare Earth Elements during Incipient Soil Genesis |
title_sort | ecosystem composition controls the fate of rare earth elements during incipient soil genesis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5322375/ https://www.ncbi.nlm.nih.gov/pubmed/28230202 http://dx.doi.org/10.1038/srep43208 |
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