Bacterial sulfate reduction in hydrothermal sediments of

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Depth distribution and temperature dependence of bacterial sulfate reduction were studied in hydrothermal surface sediments of the southern trough of the Guaymas Basin at 2000 m water depth. In situ temperatures ranged from 2.8°C at the sediment surface to >130°C at 30 cm depth in the proximity of active vent chimneys.

Effects of Temperature and Pressure on Sulfate Reduction

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Rates of sulfate reduction (SR) and anaerobic oxidation of methane (AOM) in hydrothermal deep-sea sediments from Guaymas Basin were measured at temperatures of 5 to 200°C and pressures of 1 × 10 5, 2.2 × 10 7, and 4.5 × 10 7 Pa.

Weber A, Jorgensen BB.. Bacterial sulfate reduction in

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Bacterial sulfate reduction in hydrothermal sediments of the Guaymas Basin, Gulf of California, Mexico. Deep-Sea Res Pt I-Oceanographic Res Papers 49: 827-841 | Depth distribution and temperature dependence of bacterial sulfate reduction were studied in hydrothermal surface sediments of the southern trough of the Guaymas Basin at 2000 m water depth.

Microbial sulfate reduction in deep-sea sediments at the

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Microbial sulfate reduction was studied by a 35 S tracer technique in sediments from the hydrothermal vent site in Guaymas Basin, Gulf of California, Mexico. In situ temperatures ranged from 2.7°C in the overlying seawater to > 120°C at 30 cm depth in the hydrothermal sediment.

Microbial Diversity of Hydrothermal Sediments in the

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Thermophilic bacterial sulfate reduction in deep-sea sediments at the Guaymas Basin hydrothermal vents (Gulf of California). Deep-Sea Res. I 37:695-710.

Bacterial sulfate reduction in hydrothermal sediments of

Depth distribution and temperature dependence of bacterial sulfate reduction were studied in hydrothermal surface sediments of the southern trough of the Guaymas Basin at 2000 m water depth. In situ temperatures ranged from 2.8 degreesC at the sediment surface to > 130degreesC at 30 cm depth in the proximity of active vent chimneys.

Bacterial Sulfate Reduction Above 100°C in Deep-Sea

However, among the sulfate-reducing bacteria, growth temperatures of greater than 100°C have not been found. A search for high-temperature activity of sulfate-reducing bacteria was done in hot deep-sea sediments at the hydrothermal vents of the Guaymas Basin tectonic spreading center in …

(PDF) Thermal and geochemical influences on microbial

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Thermal and geochemical influences on microbial biogeography in the hydrothermal sediments of Guaymas Basin, Gulf of California. provide substrates for sulfate reduction, a microbial.

Denitrification and environmental factors influencing

Given the high concentration of nitrate in mat-forming vacuolate sulfur bacteria and their abundance along surficial sediments in the Guaymas Basin, we postulated that nitrate cycling processes like nitrate reduction would be stimulated in mat-hosting sediments.

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55. HYDROTHERMAL ACTIVITY IN THE GUAYMAS BASIN, …

that two types of hydrothermal systems are operative in the Guaymas Basin of the Gulf of California: (1) hydrothermal activity associated with relatively shallow basaltic sill intrusions in highly porous sediments—generally of relatively