Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold
Substrate–atmosphere interfaces in Antarctic geothermal environments are hot–cold regions that constitute thin habitable niches for microorganisms with possible counterparts in ancient Mars. Cerro Caliente hill in Deception Island (active volcano in the South Shetland Islands) is affected by ascendi...
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ftpubmed:oai:pubmedcentral.nih.gov:6918857 2023-05-15T13:43:29+02:00 Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold Lezcano, María Ángeles Moreno-Paz, Mercedes Carrizo, Daniel Prieto-Ballesteros, Olga Fernández-Martínez, Miguel Ángel Sánchez-García, Laura Blanco, Yolanda Puente-Sánchez, Fernando de Diego-Castilla, Graciela García-Villadangos, Miriam Fairén, Alberto G. Parro, Víctor 2019-12-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6918857/ http://www.ncbi.nlm.nih.gov/pubmed/31339746 https://doi.org/10.1089/ast.2018.2004 en eng Mary Ann Liebert, Inc., publishers http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6918857/ http://www.ncbi.nlm.nih.gov/pubmed/31339746 http://dx.doi.org/10.1089/ast.2018.2004 © María Ángeles Lezcano et al., 2019; Published by Mary Ann Liebert, Inc. This Open Access article is distributed under the terms of the Creative Commons License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. CC-BY Research Articles Text 2019 ftpubmed https://doi.org/10.1089/ast.2018.2004 2019-12-29T01:24:44Z Substrate–atmosphere interfaces in Antarctic geothermal environments are hot–cold regions that constitute thin habitable niches for microorganisms with possible counterparts in ancient Mars. Cerro Caliente hill in Deception Island (active volcano in the South Shetland Islands) is affected by ascending hydrothermal fluids that form a band of warm substrates buffered by low air temperatures. We investigated the influence of temperature on the community structure and metabolism of three microbial mats collected along the geothermal band of Cerro Caliente registering 88°C, 8°C, and 2°C at the time of collection. High-throughput sequencing of small subunit ribosomal ribonucleic acid (SSU rRNA) genes and Life Detector Chip (LDChip) microarray immunoassays revealed different bacterial, archaeal, and eukaryotic composition in the three mats. The mat at 88°C showed the less diverse microbial community and a higher proportion of thermophiles (e.g., Thermales). In contrast, microbial communities in the mats at 2°C and 8°C showed relatively higher diversity and higher proportion of psychrophiles (e.g., Flavobacteriales). Despite this overall association, similar microbial structures at the phylum level (particularly the presence of Cyanobacteria) and certain hot- and cold-tolerant microorganisms were identified in the three mats. Daily thermal oscillations recorded in the substrate over the year (4.5–76°C) may explain the coexistence of microbial fingerprints with different thermal tolerances. Stable isotope composition also revealed metabolic differences among the microbial mats. Carbon isotopic ratios suggested the Calvin–Benson–Bassham cycle as the major pathway for carbon dioxide fixation in the mats at 2°C and 8°C, and the reductive tricarboxylic acid cycle and/or the 3-hydroxypropionate bicycle for the mat at 88°C, indicating different metabolisms as a function of the prevailing temperature of each mat. The comprehensive biomarker profile on the three microbial mats from Cerro Caliente contributes to unravel the ... Text Antarc* Antarctic Antarctica Deception Island South Shetland Islands PubMed Central (PMC) Antarctic Caliente Hill ENVELOPE(-60.712,-60.712,-62.973,-62.973) Calvin ENVELOPE(165.100,165.100,-71.283,-71.283) Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) South Shetland Islands Astrobiology 19 12 1490 1504 |
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Research Articles |
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Research Articles Lezcano, María Ángeles Moreno-Paz, Mercedes Carrizo, Daniel Prieto-Ballesteros, Olga Fernández-Martínez, Miguel Ángel Sánchez-García, Laura Blanco, Yolanda Puente-Sánchez, Fernando de Diego-Castilla, Graciela García-Villadangos, Miriam Fairén, Alberto G. Parro, Víctor Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold |
topic_facet |
Research Articles |
description |
Substrate–atmosphere interfaces in Antarctic geothermal environments are hot–cold regions that constitute thin habitable niches for microorganisms with possible counterparts in ancient Mars. Cerro Caliente hill in Deception Island (active volcano in the South Shetland Islands) is affected by ascending hydrothermal fluids that form a band of warm substrates buffered by low air temperatures. We investigated the influence of temperature on the community structure and metabolism of three microbial mats collected along the geothermal band of Cerro Caliente registering 88°C, 8°C, and 2°C at the time of collection. High-throughput sequencing of small subunit ribosomal ribonucleic acid (SSU rRNA) genes and Life Detector Chip (LDChip) microarray immunoassays revealed different bacterial, archaeal, and eukaryotic composition in the three mats. The mat at 88°C showed the less diverse microbial community and a higher proportion of thermophiles (e.g., Thermales). In contrast, microbial communities in the mats at 2°C and 8°C showed relatively higher diversity and higher proportion of psychrophiles (e.g., Flavobacteriales). Despite this overall association, similar microbial structures at the phylum level (particularly the presence of Cyanobacteria) and certain hot- and cold-tolerant microorganisms were identified in the three mats. Daily thermal oscillations recorded in the substrate over the year (4.5–76°C) may explain the coexistence of microbial fingerprints with different thermal tolerances. Stable isotope composition also revealed metabolic differences among the microbial mats. Carbon isotopic ratios suggested the Calvin–Benson–Bassham cycle as the major pathway for carbon dioxide fixation in the mats at 2°C and 8°C, and the reductive tricarboxylic acid cycle and/or the 3-hydroxypropionate bicycle for the mat at 88°C, indicating different metabolisms as a function of the prevailing temperature of each mat. The comprehensive biomarker profile on the three microbial mats from Cerro Caliente contributes to unravel the ... |
format |
Text |
author |
Lezcano, María Ángeles Moreno-Paz, Mercedes Carrizo, Daniel Prieto-Ballesteros, Olga Fernández-Martínez, Miguel Ángel Sánchez-García, Laura Blanco, Yolanda Puente-Sánchez, Fernando de Diego-Castilla, Graciela García-Villadangos, Miriam Fairén, Alberto G. Parro, Víctor |
author_facet |
Lezcano, María Ángeles Moreno-Paz, Mercedes Carrizo, Daniel Prieto-Ballesteros, Olga Fernández-Martínez, Miguel Ángel Sánchez-García, Laura Blanco, Yolanda Puente-Sánchez, Fernando de Diego-Castilla, Graciela García-Villadangos, Miriam Fairén, Alberto G. Parro, Víctor |
author_sort |
Lezcano, María Ángeles |
title |
Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold |
title_short |
Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold |
title_full |
Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold |
title_fullStr |
Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold |
title_full_unstemmed |
Biomarker Profiling of Microbial Mats in the Geothermal Band of Cerro Caliente, Deception Island (Antarctica): Life at the Edge of Heat and Cold |
title_sort |
biomarker profiling of microbial mats in the geothermal band of cerro caliente, deception island (antarctica): life at the edge of heat and cold |
publisher |
Mary Ann Liebert, Inc., publishers |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6918857/ http://www.ncbi.nlm.nih.gov/pubmed/31339746 https://doi.org/10.1089/ast.2018.2004 |
long_lat |
ENVELOPE(-60.712,-60.712,-62.973,-62.973) ENVELOPE(165.100,165.100,-71.283,-71.283) ENVELOPE(-60.633,-60.633,-62.950,-62.950) |
geographic |
Antarctic Caliente Hill Calvin Deception Island South Shetland Islands |
geographic_facet |
Antarctic Caliente Hill Calvin Deception Island South Shetland Islands |
genre |
Antarc* Antarctic Antarctica Deception Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctica Deception Island South Shetland Islands |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6918857/ http://www.ncbi.nlm.nih.gov/pubmed/31339746 http://dx.doi.org/10.1089/ast.2018.2004 |
op_rights |
© María Ángeles Lezcano et al., 2019; Published by Mary Ann Liebert, Inc. This Open Access article is distributed under the terms of the Creative Commons License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1089/ast.2018.2004 |
container_title |
Astrobiology |
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19 |
container_issue |
12 |
container_start_page |
1490 |
op_container_end_page |
1504 |
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1766189672546959360 |