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Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California
The flanking regions of Guaymas Basin, a young marginal rift basin located in the Gulf of California, are covered with thick sediment layers that are hydrothermally altered due to magmatic intrusions. To explore environmental controls on microbial community structure in this complex environment, we...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Public Library of Science
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8425543/ https://www.ncbi.nlm.nih.gov/pubmed/34495995 http://dx.doi.org/10.1371/journal.pone.0256321 |
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author | Ramírez, Gustavo A. Mara, Paraskevi Sehein, Taylor Wegener, Gunter Chambers, Christopher R. Joye, Samantha B. Peterson, Richard N. Philippe, Aurélie Burgaud, Gaëtan Edgcomb, Virginia P. Teske, Andreas P. |
author_facet | Ramírez, Gustavo A. Mara, Paraskevi Sehein, Taylor Wegener, Gunter Chambers, Christopher R. Joye, Samantha B. Peterson, Richard N. Philippe, Aurélie Burgaud, Gaëtan Edgcomb, Virginia P. Teske, Andreas P. |
author_sort | Ramírez, Gustavo A. |
collection | PubMed |
description | The flanking regions of Guaymas Basin, a young marginal rift basin located in the Gulf of California, are covered with thick sediment layers that are hydrothermally altered due to magmatic intrusions. To explore environmental controls on microbial community structure in this complex environment, we analyzed site- and depth-related patterns of microbial community composition (bacteria, archaea, and fungi) in hydrothermally influenced sediments with different thermal conditions, geochemical regimes, and extent of microbial mats. We compared communities in hot hydrothermal sediments (75-100°C at ~40 cm depth) covered by orange-pigmented Beggiatoaceae mats in the Cathedral Hill area, temperate sediments (25-30°C at ~40 cm depth) covered by yellow sulfur precipitates and filamentous sulfur oxidizers at the Aceto Balsamico location, hot sediments (>115°C at ~40 cm depth) with orange-pigmented mats surrounded by yellow and white mats at the Marker 14 location, and background, non-hydrothermal sediments (3.8°C at ~45 cm depth) overlain with ambient seawater. Whereas bacterial and archaeal communities are clearly structured by site-specific in-situ thermal gradients and geochemical conditions, fungal communities are generally structured by sediment depth. Unexpectedly, chytrid sequence biosignatures are ubiquitous in surficial sediments whereas deeper sediments contain diverse yeasts and filamentous fungi. In correlation analyses across different sites and sediment depths, fungal phylotypes correlate to each other to a much greater degree than Bacteria and Archaea do to each other or to fungi, further substantiating that site-specific in-situ thermal gradients and geochemical conditions that control bacteria and archaea do not extend to fungi. |
format | Online Article Text |
id | pubmed-8425543 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-84255432021-09-09 Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California Ramírez, Gustavo A. Mara, Paraskevi Sehein, Taylor Wegener, Gunter Chambers, Christopher R. Joye, Samantha B. Peterson, Richard N. Philippe, Aurélie Burgaud, Gaëtan Edgcomb, Virginia P. Teske, Andreas P. PLoS One Research Article The flanking regions of Guaymas Basin, a young marginal rift basin located in the Gulf of California, are covered with thick sediment layers that are hydrothermally altered due to magmatic intrusions. To explore environmental controls on microbial community structure in this complex environment, we analyzed site- and depth-related patterns of microbial community composition (bacteria, archaea, and fungi) in hydrothermally influenced sediments with different thermal conditions, geochemical regimes, and extent of microbial mats. We compared communities in hot hydrothermal sediments (75-100°C at ~40 cm depth) covered by orange-pigmented Beggiatoaceae mats in the Cathedral Hill area, temperate sediments (25-30°C at ~40 cm depth) covered by yellow sulfur precipitates and filamentous sulfur oxidizers at the Aceto Balsamico location, hot sediments (>115°C at ~40 cm depth) with orange-pigmented mats surrounded by yellow and white mats at the Marker 14 location, and background, non-hydrothermal sediments (3.8°C at ~45 cm depth) overlain with ambient seawater. Whereas bacterial and archaeal communities are clearly structured by site-specific in-situ thermal gradients and geochemical conditions, fungal communities are generally structured by sediment depth. Unexpectedly, chytrid sequence biosignatures are ubiquitous in surficial sediments whereas deeper sediments contain diverse yeasts and filamentous fungi. In correlation analyses across different sites and sediment depths, fungal phylotypes correlate to each other to a much greater degree than Bacteria and Archaea do to each other or to fungi, further substantiating that site-specific in-situ thermal gradients and geochemical conditions that control bacteria and archaea do not extend to fungi. Public Library of Science 2021-09-08 /pmc/articles/PMC8425543/ /pubmed/34495995 http://dx.doi.org/10.1371/journal.pone.0256321 Text en © 2021 Ramírez et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Ramírez, Gustavo A. Mara, Paraskevi Sehein, Taylor Wegener, Gunter Chambers, Christopher R. Joye, Samantha B. Peterson, Richard N. Philippe, Aurélie Burgaud, Gaëtan Edgcomb, Virginia P. Teske, Andreas P. Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California |
title | Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California |
title_full | Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California |
title_fullStr | Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California |
title_full_unstemmed | Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California |
title_short | Environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of Guaymas Basin, Gulf of California |
title_sort | environmental factors shaping bacterial, archaeal and fungal community structure in hydrothermal sediments of guaymas basin, gulf of california |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8425543/ https://www.ncbi.nlm.nih.gov/pubmed/34495995 http://dx.doi.org/10.1371/journal.pone.0256321 |
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