A Review of the Geochemistry and Microbiology of Marine Shallow-Water Hydrothermal Vents

Price, Roy E.; Giovannelli, Donato

doi:10.1016/b978-0-12-409548-9.09523-3

Cited by 77 publications

(84 citation statements)

References 218 publications

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“…In contrast, parameters that influence the macro-scale level vary with the ecosystem. For example, temperature plays a significant role in geothermal environments and influences such processes as water-rock interactions and degassing (Cole et al, 2013;Fouke, 2011;Nordstrom et al, 2005;Price and Giovannelli, 2017). Water-rock interactions can then impact microorganisms by limiting the availability of trace elements and electron donors/ acceptors.…”

Section: Parameters That Limit Lifementioning

confidence: 99%

Living at the Extremes: Extremophiles and the Limits of Life in a Planetary Context

Merino¹,

Aronson²,

Bojanova³

et al. 2019

Preprint

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Prokaryotic life has dominated most of the evolutionary history of our planet, evolving tooccupy virtually all available environmental niches. Extremophiles, especially those thrivingunder multiple extremes, represent a key area of research for multiple disciplines, spanningfrom the study of adaptations to harsh conditions, to the biogeochemical cycling of elements.Extremophile research also has implications for origin of life studies and the search for life onother planetary and celestial bodies. In this article, we will review the current state ofknowledge for the biospace in which life operates on Earth and will discuss it in a planetarycontext, highlighting knowledge gaps and areas of opportunity.

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Section: Parameters That Limit Lifementioning

confidence: 99%

Living at the Extremes: Extremophiles and the Limits of Life in a Planetary Context

Merino¹,

Aronson²,

Bojanova³

et al. 2019

Preprint

Self Cite

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“…Recent studies point towards an abundance of hydrothermal venting in shallow marine, near shore environments. Approximately 70 such locations, which are generally described as 'marine shallow-water hydrothermal systems' (MSWHS), have been documented (Price & Giovannelli, 2017). This type of hydrothermal activity can have a considerable impact on the biologically important coastal ocean by creating micro-environments due to the discharge of reduced, hot hydrothermal fluids often containing potentially toxic elements (Brinkhoff et al, 1999;Chen et al, 2018;Kleint et al, 2017;Marani et al, 1997;Meyer-Dombard et al, 2012;Pichler, 2005;Pichler & Veizer, 2004;Price et al, 2007;Ristova et al, 2017;Ruiz-Chancho et al, 2013;Stanulla et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal areas, microbial mats and sea grass in Paleochori Bay, Milos, Greece

Khimasia

Pichler

2020

Journal of Maps

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The study presents a 1:3300 scale map, encompassing an area of 1.05 km 2 , depicting the first detailed map of the shallow-water water hydrothermal system in Paleochori Bay, Milos, Greece. The seafloor was mapped using orthophotos acquired by a drone survey and processed using ArcGIS. The map shows the distribution of white microbial mats, former microbial mats, sea grass and 'normal' sand down to a depth of 15 m. Generation of a comprehensive map with native shapefiles and layer files, where any GPS coordinate in Paleochori Bay can be obtained, allows to target specific locations for data collection, rather than resorting to vague site descriptions, as has been the practice in the past. Sea floor temperature measurements carried out by Scuba divers in conjunction with GPS coordinates were mapped and interpolated to evaluate the temperature distribution in Paleochori Bay, which in turn supports the overall understanding of the hydrothermal system. ARTICLE HISTORY

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“…Sulfidic ores in exposed rock can be mobilized either chemically or by microbiological attack. As a consequence, S 0 and sulfur compounds are the most abundant sources both of electron acceptors and electron donors in volcanic environments and are used by a plentitude of microorganisms to support growth (Blöchl et al ., ; Schönheit and Schäfer, ; Stoiber, ; Xu et al ., ; Amend and Shock, ; Price and Giovannelli, ). In the context of Archean life at the vents, reduction of S 0 may have played a central role in the production of biomass.…”

Section: Introductionmentioning

confidence: 99%

Elemental sulfur reduction in the deep‐sea vent thermophile, Thermovibrio ammonificans

Jelen

Giovannelli

Falkowski

et al. 2018

Environmental Microbiology

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The reduction of elemental sulfur is an important energy-conserving pathway in prokaryotes inhabiting geothermal environments, where sulfur respiration contributes to sulfur biogeochemical cycling. Despite this, the pathways through which elemental sulfur is reduced to hydrogen sulfide remain unclear in most microorganisms. We integrated growth experiments using Thermovibrio ammonificans, a deep-sea vent thermophile that conserves energy from the oxidation of hydrogen and reduction of both nitrate and elemental sulfur, with comparative transcriptomic and proteomic approaches, coupled with scanning electron microscopy. Our results revealed that two members of the FAD-dependent pyridine nucleotide disulfide reductase family, similar to sulfide-quinone reductase and to NADH-dependent sulfur reductase (NSR), respectively, are over-expressed during sulfur respiration. Scanning electron micrographs and sulfur sequestration experiments indicated that direct access of T. ammonificans to sulfur particles strongly promoted growth. The sulfur metabolism of T. ammonificans appears to require abiotic transition from bulk elemental sulfur to polysulfide to nanoparticulate sulfur at an acidic pH, coupled to biological hydrogen oxidation. A coupled biotic-abiotic mechanism for sulfur respiration is put forward, mediated by an NSR-like protein as the terminal reductase.

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A Review of the Geochemistry and Microbiology of Marine Shallow-Water Hydrothermal Vents

Cited by 77 publications

References 218 publications

Living at the Extremes: Extremophiles and the Limits of Life in a Planetary Context

Living at the Extremes: Extremophiles and the Limits of Life in a Planetary Context

Hydrothermal areas, microbial mats and sea grass in Paleochori Bay, Milos, Greece

Elemental sulfur reduction in the deep‐sea vent thermophile, Thermovibrio ammonificans

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