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Feasible metabolisms in high pH springs of the Philippines
A field campaign targeting high pH, H(2)-, and CH(4)-emitting serpentinite-associated springs in the Zambales and Palawan Ophiolites of the Philippines was conducted in 2012-2013, and enabled description of several springs sourced in altered pillow basalts, gabbros, and peridotites. We combine field...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2015
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4322734/ https://www.ncbi.nlm.nih.gov/pubmed/25713561 http://dx.doi.org/10.3389/fmicb.2015.00010 |
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author | Cardace, Dawn Meyer-Dombard, D'Arcy R. Woycheese, Kristin M. Arcilla, Carlo A. |
author_facet | Cardace, Dawn Meyer-Dombard, D'Arcy R. Woycheese, Kristin M. Arcilla, Carlo A. |
author_sort | Cardace, Dawn |
collection | PubMed |
description | A field campaign targeting high pH, H(2)-, and CH(4)-emitting serpentinite-associated springs in the Zambales and Palawan Ophiolites of the Philippines was conducted in 2012-2013, and enabled description of several springs sourced in altered pillow basalts, gabbros, and peridotites. We combine field observations of pH, temperature, conductivity, dissolved oxygen, and oxidation-reduction potential with analyses of major ions, dissolved inorganic carbon, dissolved organic carbon, and dissolved gas phases in order to model the activities of selected phases important to microbial metabolism, and to rank feasible metabolic reactions based on energy yield. We document changing geochemical inventories in these springs between sampling years, and examine how the environment supports or prevents the function of certain microbial metabolisms. In all, this geochemistry-based assessment of feasible metabolisms indicates methane cycling, hydrogen oxidation, some iron and sulfur metabolisms, and ammonia oxidation are feasible reactions in this continental site of serpentinization. |
format | Online Article Text |
id | pubmed-4322734 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-43227342015-02-24 Feasible metabolisms in high pH springs of the Philippines Cardace, Dawn Meyer-Dombard, D'Arcy R. Woycheese, Kristin M. Arcilla, Carlo A. Front Microbiol Microbiology A field campaign targeting high pH, H(2)-, and CH(4)-emitting serpentinite-associated springs in the Zambales and Palawan Ophiolites of the Philippines was conducted in 2012-2013, and enabled description of several springs sourced in altered pillow basalts, gabbros, and peridotites. We combine field observations of pH, temperature, conductivity, dissolved oxygen, and oxidation-reduction potential with analyses of major ions, dissolved inorganic carbon, dissolved organic carbon, and dissolved gas phases in order to model the activities of selected phases important to microbial metabolism, and to rank feasible metabolic reactions based on energy yield. We document changing geochemical inventories in these springs between sampling years, and examine how the environment supports or prevents the function of certain microbial metabolisms. In all, this geochemistry-based assessment of feasible metabolisms indicates methane cycling, hydrogen oxidation, some iron and sulfur metabolisms, and ammonia oxidation are feasible reactions in this continental site of serpentinization. Frontiers Media S.A. 2015-02-10 /pmc/articles/PMC4322734/ /pubmed/25713561 http://dx.doi.org/10.3389/fmicb.2015.00010 Text en Copyright © 2015 Cardace, Meyer-Dombard, Woycheese and Arcilla. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Microbiology Cardace, Dawn Meyer-Dombard, D'Arcy R. Woycheese, Kristin M. Arcilla, Carlo A. Feasible metabolisms in high pH springs of the Philippines |
title | Feasible metabolisms in high pH springs of the Philippines |
title_full | Feasible metabolisms in high pH springs of the Philippines |
title_fullStr | Feasible metabolisms in high pH springs of the Philippines |
title_full_unstemmed | Feasible metabolisms in high pH springs of the Philippines |
title_short | Feasible metabolisms in high pH springs of the Philippines |
title_sort | feasible metabolisms in high ph springs of the philippines |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4322734/ https://www.ncbi.nlm.nih.gov/pubmed/25713561 http://dx.doi.org/10.3389/fmicb.2015.00010 |
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