Project description:Acididesulfobacillus acetoxydans is an acidophilic sulfate reducer that can dissimilatory reduce nitrate to ammonia (DNRA). However, no known nitrite reductase is encoded. This study was performed to investigate how A. acetoxydans reduces nitrate to nitrite and elucidated a novel DNRA mechanism and potential nitrosative stress resistance mechanisms in acidophiles.

2024-01-26 | PXD045135 | Pride

NaphS2 Gene Expression During Anaerobic Degradation of Naphthalene

Project description:Degradation of polycyclic aromatic hydrocarbons (PAHs) such as naphthalene by anaerobic microorganisms is poorly understood. Strain NaphS2, an anaerobic sulfate reducing marine delta-proteobacterium is capable of using naphthalene and the aromatic compound benzoate, as well as pyruvate, as an electron donors in the presence of sulfate. In order to identify genes involved in the naphthalene degradation pathway, we compared gene expression in NaphS2 during growth on benzoate vs. pyruvate, naphthalene vs. pyruvate, and naphthalene vs benzoate.

2010-07-22 | GSE12323 | GEO

Generation of zero-valent sulfur from dissimilatory sulfate reduction in sulfate-reducing microorganisms

Project description:Dissimilatory sulfate reduction (DSR) mediated by sulfate-reducing microorganisms (SRMs) plays a pivotal role in global sulfur, carbon, oxygen, and iron cycles since ~3.5 billion years ago. The canonical DSR pathway is believed to be sulfate reduction to sulfide. Herein, we report a new DSR pathway in phylogenetically diverse SRMs through which zero-valent sulfur (ZVS) is directly generated. We identified that approximately 8.9% of sulfate reduction was directed toward ZVS with S8 as a predominant product, and the ratio of sulfate-to-ZVS could be changed with SRMs’ growth conditions, particularly the medium salinity. Further coculturing experiments and metadata analyses revealed that DSR-derived ZVS supported the growth of various ZVS-metabolizing microorganisms, highlighting this new pathway as an essential component of the sulfur biogeochemical cycle

2023-04-28 | PXD040825 | Pride

Saline sulfate reducing bioreactors

Project description:The impact of salinity on the performance and microbial composition of a sulfate reducing reactor

| PRJEB37148 | ENA

Sulfate-reducing bioreactors treating effluents with high sulfate loading rate or acidity: Variations in microbial consortiaSulfate-reducing bioreactors treating effluents with high sulfate loading rate or acidity: Variations in microbial consortia

Project description:Sulfate-reducing bioreactor consortia

| PRJEB50652 | ENA

citrate vs nitrate Reducing cultures

Project description:The effect of nitrate reduction (anaerobic cultivation in the presence of heme, vitamin K2 and nitrate) was compared with anaerobic cultivation supplemented with citrate (Lactobacillus plantarum). The medium was chemically defined medium with mannitol as main carbon source Two-condition experiment, nitrate vs citrate reducing cells. Biological replicates: 4 nitrate reducing cultures, 4 citrate reducing cultures, independently grown and harvested. Two slides were used, each slide contained 8 Arrays. Citrate reducing cultures are called reactor 1-4, Nitrate reducing cultures are called reactor A-D

2010-05-16 | E-GEOD-18339 | biostudies-arrayexpress

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