Dominance of Arcobacterin the whitefilaments from the thermal sulfidicspring of Fetida Cave (Apulia, southern Italy)
The thermal spring of Fetida Cave, a still active sulfuric acid cave opening at sea level and located in Santa Cesarea Terme, southeastern Salento (Apulia region, Southern Italy) hosts abundant floating white filaments. The white filaments were mainly composed of sulfur crystals surrounded by microbial mass of the phyla Epsilonbacteraeota, Proteobacteria, Bacteroidetes, and Patescibacteria. The most abundant genus in the white filaments collected from the waters in the innermost part of the cave dominated by sulfidic exhalations was Arcobacter. This abundance can be related to the higher concentration of sulfide dissolved in water, and low oxygen and pH values. Conversely, lower Arcobacter abundances were obtained in the filaments collected in the entrance and middle part of the cave, where sulfidic water mixes with seawater, as the cave is subjected to tides and the mixing of fresh (continental) with marine water. The geochemical analysis of water and atmospheric gases confirmed these environmental constraints. In fact, the highest concentrations of H2S in the air and water were recorded closest to the spring upwelling in the innermost part of the cave, and the lowest ones near the cave entrance. The metabolic versatility of Arcobacter might provide a competitive advantage in the colonization of water bodies characterized by high sulfide, low oxygen, and dynamic fluid movement.
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2021-12
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Subjects: | Microbial diversity, Sulfuric acid speleogenesis, Microbial filaments, Sulfur, Cave atmosphere, Water geochemistry, |
Online Access: | http://hdl.handle.net/10261/249853 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100003329 |
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dig-irnas-es-10261-2498532022-02-02T08:23:27Z Dominance of Arcobacterin the whitefilaments from the thermal sulfidicspring of Fetida Cave (Apulia, southern Italy) Jurado, Valme D'Angeli, Ilenia Martín-Pozas, Tamara Cappelletti, Martina Ghezzi, Daniele De Waele, Jo Sánchez Moral, Sergio Sáiz-Jiménez, Cesáreo Ministerio de Economía y Competitividad (España) Ministerio de Ciencia e Innovación (España) CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI) Microbial diversity Sulfuric acid speleogenesis Microbial filaments Sulfur Cave atmosphere Water geochemistry The thermal spring of Fetida Cave, a still active sulfuric acid cave opening at sea level and located in Santa Cesarea Terme, southeastern Salento (Apulia region, Southern Italy) hosts abundant floating white filaments. The white filaments were mainly composed of sulfur crystals surrounded by microbial mass of the phyla Epsilonbacteraeota, Proteobacteria, Bacteroidetes, and Patescibacteria. The most abundant genus in the white filaments collected from the waters in the innermost part of the cave dominated by sulfidic exhalations was Arcobacter. This abundance can be related to the higher concentration of sulfide dissolved in water, and low oxygen and pH values. Conversely, lower Arcobacter abundances were obtained in the filaments collected in the entrance and middle part of the cave, where sulfidic water mixes with seawater, as the cave is subjected to tides and the mixing of fresh (continental) with marine water. The geochemical analysis of water and atmospheric gases confirmed these environmental constraints. In fact, the highest concentrations of H2S in the air and water were recorded closest to the spring upwelling in the innermost part of the cave, and the lowest ones near the cave entrance. The metabolic versatility of Arcobacter might provide a competitive advantage in the colonization of water bodies characterized by high sulfide, low oxygen, and dynamic fluid movement. This work was supported by the Spanish Ministry of Economy and Competitiveness through project CGL2016-75590-P with ERDF funds and PID2019-110603RB-I00/AEI/10.13039/501100011033. We acknowledge support of the publication fee by the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI). Peer reviewed 2021-09-09T12:23:27Z 2021-09-09T12:23:27Z 2021-12 artículo http://purl.org/coar/resource_type/c_6501 Science of the Total Environment 800: 149465 (2021) 0048-9697 http://hdl.handle.net/10261/249853 10.1016/j.scitotenv.2021.149465 1879-1026 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100003329 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2016-75590-P info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110603RB-I00 https://www.sciencedirect.com/science/article/pii/S0048969721045393?via%3Dihub Sí none Elsevier |
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Microbial diversity Sulfuric acid speleogenesis Microbial filaments Sulfur Cave atmosphere Water geochemistry Microbial diversity Sulfuric acid speleogenesis Microbial filaments Sulfur Cave atmosphere Water geochemistry |
spellingShingle |
Microbial diversity Sulfuric acid speleogenesis Microbial filaments Sulfur Cave atmosphere Water geochemistry Microbial diversity Sulfuric acid speleogenesis Microbial filaments Sulfur Cave atmosphere Water geochemistry Jurado, Valme D'Angeli, Ilenia Martín-Pozas, Tamara Cappelletti, Martina Ghezzi, Daniele De Waele, Jo Sánchez Moral, Sergio Sáiz-Jiménez, Cesáreo Dominance of Arcobacterin the whitefilaments from the thermal sulfidicspring of Fetida Cave (Apulia, southern Italy) |
description |
The thermal spring of Fetida Cave, a still active sulfuric acid cave opening at sea level and located in Santa Cesarea Terme, southeastern Salento (Apulia region, Southern Italy) hosts abundant floating white filaments. The white filaments were mainly composed of sulfur crystals surrounded by microbial mass of the phyla Epsilonbacteraeota, Proteobacteria, Bacteroidetes, and Patescibacteria. The most abundant genus in the white filaments collected from the waters in the innermost part of the cave dominated by sulfidic exhalations was Arcobacter. This abundance can be related to the higher concentration of sulfide dissolved in water, and low oxygen and pH values. Conversely, lower Arcobacter abundances were obtained in the filaments collected in the entrance and middle part of the cave, where sulfidic water mixes with seawater, as the cave is subjected to tides and the mixing of fresh (continental) with marine water. The geochemical analysis of water and atmospheric gases confirmed these environmental constraints. In fact, the highest concentrations of H2S in the air and water were recorded closest to the spring upwelling in the innermost part of the cave, and the lowest ones near the cave entrance. The metabolic versatility of Arcobacter might provide a competitive advantage in the colonization of water bodies characterized by high sulfide, low oxygen, and dynamic fluid movement. |
author2 |
Ministerio de Economía y Competitividad (España) |
author_facet |
Ministerio de Economía y Competitividad (España) Jurado, Valme D'Angeli, Ilenia Martín-Pozas, Tamara Cappelletti, Martina Ghezzi, Daniele De Waele, Jo Sánchez Moral, Sergio Sáiz-Jiménez, Cesáreo |
format |
artículo |
topic_facet |
Microbial diversity Sulfuric acid speleogenesis Microbial filaments Sulfur Cave atmosphere Water geochemistry |
author |
Jurado, Valme D'Angeli, Ilenia Martín-Pozas, Tamara Cappelletti, Martina Ghezzi, Daniele De Waele, Jo Sánchez Moral, Sergio Sáiz-Jiménez, Cesáreo |
author_sort |
Jurado, Valme |
title |
Dominance of Arcobacterin the whitefilaments from the thermal sulfidicspring of Fetida Cave (Apulia, southern Italy) |
title_short |
Dominance of Arcobacterin the whitefilaments from the thermal sulfidicspring of Fetida Cave (Apulia, southern Italy) |
title_full |
Dominance of Arcobacterin the whitefilaments from the thermal sulfidicspring of Fetida Cave (Apulia, southern Italy) |
title_fullStr |
Dominance of Arcobacterin the whitefilaments from the thermal sulfidicspring of Fetida Cave (Apulia, southern Italy) |
title_full_unstemmed |
Dominance of Arcobacterin the whitefilaments from the thermal sulfidicspring of Fetida Cave (Apulia, southern Italy) |
title_sort |
dominance of arcobacterin the whitefilaments from the thermal sulfidicspring of fetida cave (apulia, southern italy) |
publisher |
Elsevier |
publishDate |
2021-12 |
url |
http://hdl.handle.net/10261/249853 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100003329 |
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