Results 51 to 60 of about 184,111 (289)

Electrobioremediation of oil spills [PDF]

, 2017
Annually, thousands of oil spills occur across the globe. As a result, petroleum substances and petrochemical compounds are widespread contaminants causing concern due to their toxicity and recalcitrance.
Arends, Jan B.A., Aulenta, Federico, Bestetti, Giuseppina, Daghio, Matteo, Franzetti, Andrea, Head, Ian M., Rabaey, Korneel, Sherry, Angela, Suárez-Suárez, Ana, Vaiopoulou, Eleni   +9 more
core   +2 more sources

Modeling microbial sulfate reduction and the consequences for corrosion of copper canisters [PDF]

Materials and Corrosion, 2020
AbstractThe copper sulfide model (CSM) is a one‐dimensional reactive transport code for predicting the evolution of the corrosion behavior of a copper canister in a deep geological repository. Here, the CSM has been extended to simulate the microbial reduction of sulfate in the repository and the consequences for corrosion of the canister ...
Fraser King, Miroslav Kolář, Ignasi Puigdomenech, Petteri Pitkänen, Christina Lilja   +4 more
openaire   +1 more source

Chemotrophic Microbial Mats and Their Potential for Preservation in the Rock Record [PDF]

, 2009
Putative microbialites are commonly regarded to have formed in association with photosynthetic microorganisms, such as cyanobacteria. However, many modern microbial mat ecosystems are dominated by chemotrophic bacteria and archaea.
Bailey, Jake V., Corsetti, Frank A., Joye, Samantha B., Orphan, Victoria J.   +3 more
core   +1 more source

Controlling factors on patterns of dissolved organic carbon and volatile fatty acids in a submarine mud volcano offshore southwestern Taiwan

Frontiers in Earth Science, 2023
Dissolved organic carbon (DOC) and volatile fatty acids (VFAs) play key roles in the carbon cycling of marine sediment. Both microbially or thermally activated cracking of organic matter often produces high quantities of DOC and VFAs.
Nai-Chen Chen, Nai-Chen Chen, Tsanyao Frank Yang, Ya-Hsuan Liou, Ya-Hsuan Liou, Huei-Ting Tina Lin, Wei-Li Hong, Saulwood Lin, Chih-Chieh Su, Chih-Chieh Su, Li-Hung Lin, Li-Hung Lin, Pei-Ling Wang, Pei-Ling Wang   +13 more
doaj   +1 more source

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

Molecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee, Byung‐Cheol Han, Gi‐Bang Koo, Jihye Park, Mijin Kwon, Young Bin Park, Jae‐Mun Choi, Seung‐Ho Lee, Sangho Roh   +8 more
wiley   +1 more source

Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges

Frontiers in Marine Science
Microbial sulfate reduction is generally limited in the deep sea compared to shallower marine environments, but cold seeps and hydrothermal systems are considered an exception.
Desiree L. Roerdink, Francesca Vulcano, Jan-Kristoffer Landro, Karen E. Moltubakk, Hannah R. Babel, Steffen Leth Jørgensen, Steffen Leth Jørgensen, Tamara Baumberger, Tamara Baumberger, Ingeborg E. Økland, Eoghan P. Reeves, Ingunn H. Thorseth, Laila J. Reigstad, Harald Strauss, Ida H. Steen   +14 more
doaj   +1 more source

Sulfate reduction and homoacetogenesis at various hypersaline conditions: Implications for H2 underground gas storage

Frontiers in Energy Research, 2023
While interest in underground gas storage (UGS) of hydrogen (H2) in salt caverns is increasing in a growing H2 economy, knowledge of the microbial communities inhabiting those hypersaline environments is still scarce. High salt concentrations and limited
Laura Schwab, Lilian Prinsen, Guido Nowack, Denny Popp, Matthias Noll, Matthias Noll, Carsten Vogt, Martin Wagner   +7 more
doaj   +1 more source

Effect of Ethanol on Microbial Community Structure and Function During Natural Attenuation of Benzene, Toluene, and \u3cem\u3eo\u3c/em\u3e-Xylene in a Sulfate-reducing Aquifer [PDF]

, 2008
Ethanol (EtOH) is a commonly used fuel oxygenate in reformulated gasoline and is an alternative fuel and fuel supplement. Effects of EtOH release on aquifer microbial ecology and geochemistry have not been well characterized in situ.
Chakraborty, Irina, de Sieyes, Nick, Einarson, Murray, Feris, Kevin, Hristova, Krassimira R., Mackay, Doug, Scow, Kate M.   +6 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Assessing Microbial Corrosion Risk on Offshore Crude Oil Production Topsides under Conditions of Nitrate and Nitrite Treatment for Souring

Microorganisms, 2022
Oilfield souring is a detrimental effect caused by sulfate-reducing microorganisms that reduce sulfate to sulfide during their respiration process. Nitrate or nitrite can be used to mitigate souring, but may also impart a corrosion risk.
Danika Nicoletti, Mohita Sharma, Lisa M. Gieg   +2 more
doaj   +1 more source