Contrasting microbial community assembly hypotheses: a reconciling tale from the Río Tinto.

<h4>Background</h4>The Río Tinto (RT) is distinguished from other acid mine drainage systems by its natural and ancient origins. Microbial life from all three domains flourishes in this ecosystem, but bacteria dominate metabolic processes that perpetuate environmental extremes. While the...

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Autores principales: Carmen Palacios, Erik Zettler, Ricardo Amils, Linda Amaral-Zettler
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Publicado: Public Library of Science (PLoS) 2008
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Acceso en línea:https://doaj.org/article/8e8eb16e0cfa44d8bb4ed337ecc6ad99
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spelling oai:doaj.org-article:8e8eb16e0cfa44d8bb4ed337ecc6ad992021-11-25T06:18:18ZContrasting microbial community assembly hypotheses: a reconciling tale from the Río Tinto.1932-620310.1371/journal.pone.0003853https://doaj.org/article/8e8eb16e0cfa44d8bb4ed337ecc6ad992008-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19052647/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>The Río Tinto (RT) is distinguished from other acid mine drainage systems by its natural and ancient origins. Microbial life from all three domains flourishes in this ecosystem, but bacteria dominate metabolic processes that perpetuate environmental extremes. While the patchy geochemistry of the RT likely influences the dynamics of bacterial populations, demonstrating which environmental variables shape microbial diversity and unveiling the mechanisms underlying observed patterns, remain major challenges in microbial ecology whose answers rely upon detailed assessments of community structures coupled with fine-scale measurements of physico-chemical parameters.<h4>Methodology/principal findings</h4>By using high-throughput environmental tag sequencing we achieved saturation of richness estimators for the first time in the RT. We found that environmental factors dictate the distribution of the most abundant taxa in this system, but stochastic niche differentiation processes, such as mutation and dispersal, also contribute to observed diversity patterns.<h4>Conclusions/significance</h4>We predict that studies providing clues to the evolutionary and ecological processes underlying microbial distributions will reconcile the ongoing debate between the Baas Becking vs. Hubbell community assembly hypotheses.Carmen PalaciosErik ZettlerRicardo AmilsLinda Amaral-ZettlerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 3, Iss 12, p e3853 (2008)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Carmen Palacios
Erik Zettler
Ricardo Amils
Linda Amaral-Zettler
Contrasting microbial community assembly hypotheses: a reconciling tale from the Río Tinto.
description <h4>Background</h4>The Río Tinto (RT) is distinguished from other acid mine drainage systems by its natural and ancient origins. Microbial life from all three domains flourishes in this ecosystem, but bacteria dominate metabolic processes that perpetuate environmental extremes. While the patchy geochemistry of the RT likely influences the dynamics of bacterial populations, demonstrating which environmental variables shape microbial diversity and unveiling the mechanisms underlying observed patterns, remain major challenges in microbial ecology whose answers rely upon detailed assessments of community structures coupled with fine-scale measurements of physico-chemical parameters.<h4>Methodology/principal findings</h4>By using high-throughput environmental tag sequencing we achieved saturation of richness estimators for the first time in the RT. We found that environmental factors dictate the distribution of the most abundant taxa in this system, but stochastic niche differentiation processes, such as mutation and dispersal, also contribute to observed diversity patterns.<h4>Conclusions/significance</h4>We predict that studies providing clues to the evolutionary and ecological processes underlying microbial distributions will reconcile the ongoing debate between the Baas Becking vs. Hubbell community assembly hypotheses.
format article
author Carmen Palacios
Erik Zettler
Ricardo Amils
Linda Amaral-Zettler
author_facet Carmen Palacios
Erik Zettler
Ricardo Amils
Linda Amaral-Zettler
author_sort Carmen Palacios
title Contrasting microbial community assembly hypotheses: a reconciling tale from the Río Tinto.
title_short Contrasting microbial community assembly hypotheses: a reconciling tale from the Río Tinto.
title_full Contrasting microbial community assembly hypotheses: a reconciling tale from the Río Tinto.
title_fullStr Contrasting microbial community assembly hypotheses: a reconciling tale from the Río Tinto.
title_full_unstemmed Contrasting microbial community assembly hypotheses: a reconciling tale from the Río Tinto.
title_sort contrasting microbial community assembly hypotheses: a reconciling tale from the río tinto.
publisher Public Library of Science (PLoS)
publishDate 2008
url https://doaj.org/article/8e8eb16e0cfa44d8bb4ed337ecc6ad99
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AT ricardoamils contrastingmicrobialcommunityassemblyhypothesesareconcilingtalefromtheriotinto
AT lindaamaralzettler contrastingmicrobialcommunityassemblyhypothesesareconcilingtalefromtheriotinto
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