Results 121 to 130 of about 19,850 (223)

Microbial manganese and sulfate reduction in Black Sea shelf sediments

, 2000
The microbial ecology of anaerobic carbon oxidation processes was investigated in Black Sea shelf sediments from mid-shelf with well-oxygenated bottom water to the oxic-anoxic chemocline at the shelf-break.
Amann, R., Rosselló-Mora, R., Thamdrup, B.   +2 more
core  

Enriched iron(III)-reducing bacterial communities are shaped by carbon substrate and iron oxide mineralogy

Frontiers in Microbiology, 2012
Iron (Fe) oxides exist in a spectrum of structures in the environment, with ferrihydrite widely considered the most bioavailable phase. Yet, ferrihydrite is unstable and rapidly transforms to more crystalline Fe(III) oxides (e.g., goethite, hematite ...
Christopher J. Lentini, Scott D. Wankel, Colleen M. Hansel, Colleen M. Hansel   +3 more
doaj   +1 more source

Comparative Genomics and Proteomic Analysis of Assimilatory Sulfate Reduction Pathways in Anaerobic Methanotrophic Archaea

Frontiers in Microbiology, 2018
Sulfate is the predominant electron acceptor for anaerobic oxidation of methane (AOM) in marine sediments. This process is carried out by a syntrophic consortium of anaerobic methanotrophic archaea (ANME) and sulfate reducing bacteria (SRB) through an ...
Hang Yu, Hang Yu, Dwi Susanti, Shawn E. McGlynn, Connor T. Skennerton, Karuna Chourey, Ramsunder Iyer, Ramsunder Iyer, Silvan Scheller, Patricia L. Tavormina, Robert L. Hettich, Biswarup Mukhopadhyay, Biswarup Mukhopadhyay, Biswarup Mukhopadhyay, Victoria J. Orphan   +14 more
doaj   +1 more source

Cytochromes and iron sulfur proteins in sulfur metabolism of phototrophic bacteria [PDF]

Dissimilatory sulfur metabolism in phototrophic sulfur bacteria provides the bacteria with electrons for photosynthetic electron transport chain and, with energy.
Fischer, U.
core   +1 more source

Dissimilatory sulfate reduction and methane production in Gotland Deep sediments (Baltic Sea) during a transition period from oxic to anoxic bottom water (1993-1996) [PDF]

, 1998
Levent Piker, Rolf Schmaljohann, JF Imhoff   +2 more
openalex   +1 more source

Deep-sea in situ and laboratory multi-omics provide insights into the sulfur assimilation of a deep-sea Chloroflexota bacterium

mBio
Chloroflexota bacteria are abundant and globally distributed in various deep-sea ecosystems. It has been reported based on metagenomics data that two deep-sea Chloroflexota lineages (the SAR202 group and Dehalococcoidia class) have the potential to drive
Rikuan Zheng, Chong Wang, Chaomin Sun
doaj   +1 more source

An Investigation into the Suitability of Sulfate-Reducing Bacteria as Models for Martian Forward Contamination [PDF]

, 2018
The NASA Planetary Protection policy requires interplanetary space missions do not compromise the target body for a current or future scientific investigation and do not pose an unacceptable risk to Earth, including biologic materials.
Silver, Maxwell M. W.
core   +2 more sources

A novel mechanism for dissimilatory nitrate reduction to ammonium in Acididesulfobacillus acetoxydans

mSystems
The biological route of nitrate reduction has important implications for the bioavailability of nitrogen within ecosystems. Nitrate reduction via nitrite, either to ammonium (ammonification) or to nitrous oxide or dinitrogen (denitrification), determines
Reinier A. Egas, Julia M. Kurth, Sjef Boeren, Diana Z. Sousa, Cornelia U. Welte, Irene Sánchez-Andrea   +5 more
doaj   +1 more source

Mercury Speciation, Retention, and Abundance of Genes Involved with Mercury Methylation in Fertilized Salt Marsh Sediments [PDF]

, 2015
Mercury (Hg) is a global pollutant which exists in both aquatic and terrestrial systems in three main forms including elemental Hg, ionic mercury, and methyl mercury, (MeHg), and Hg cycling plays an important role in ecosystems. Great Sippewisset Marsh, (
Collins, Caroline
core   +1 more source

Zero-valent sulfur is the product of assimilatory sulfite reductase and a substrate of cysteine synthase

Applied and Environmental Microbiology
The process of the assimilatory sulfate reduction consists of sulfate reduction to hydrogen sulfide (H2S) and then H2S assimilation for cysteine synthesis.
Qun Cao, Xuanyu Liu, Qingda Wang, Yongzhen Xia, Luying Xun, Huaiwei Liu   +5 more
doaj   +1 more source