Results 61 to 70 of about 2,296 (207)

Acetylene Fuels TCE Reductive Dechlorination by Defined Dehalococcoides/Pelobacter Consortia. [PDF]

, 2017
Acetylene (C2H2) can be generated in contaminated groundwater sites as a consequence of chemical degradation of trichloroethene (TCE) by in situ minerals, and C2H2 is known to inhibit bacterial dechlorination. In this study, we show that while high C2H2 (
Alvarez-Cohen, Lisa, Baesman, Shaun M, Gushgari, Sara, Landers, Abigail A, Liu, Tong, Mao, Xinwei, Oremland, Ronald S   +6 more
core   +2 more sources

Fermentative production of vitamin B12 by Propionibacterium shermanii and Pseudomonas denitrificans and its promising health benefits: A review

Food Science &Nutrition, Volume 12, Issue 11, Page 8675-8691, November 2024.
Vitamin B12 is essential to human physiological processes, it might be challenging for vegans and vegetarians to get enough of it in their diets. Propionibacterium shermanii and Pseudomonas denitrificans have been demonstrated as promising fermented sources of vitamin B12. Vitamin B12 is naturally produced by P. denitrificans, but P.
Anjali Tripathi, Vinay Kumar Pandey, Parmjit S. Panesar, Anam Taufeeq, Hridyanshi Mishra, Sarvesh Rustagi, Sumira Malik, Béla Kovács, Tejas Suthar, Ayaz Mukarram Shaikh   +9 more
wiley   +1 more source

Is the Hyporheic Zone Relevant beyond the Scientific Community? [PDF]

, 2019
Rivers are important ecosystems under continuous anthropogenic stresses. The hyporheic zone is a ubiquitous, reactive interface between the main channel and its surrounding sediments along the river network. We elaborate on the main physical, biological,
Arnon, Shai, Banks, Eddie, Batelaan, Okke, Betterle, Andrea, Broecker, Tabea, Coll, Claudia, Drummond, Jennifer D., Garcia, Jaime Gaona, Lewandowski, Jörg, Wolke, Philipp   +9 more
core   +1 more source

Production and utilization of pseudocobalamin in marine Synechococcus cultures and communities

Environmental Microbiology, Volume 26, Issue 10, October 2024.
Pseudocobalamin levels in cultured Synechococcus cells are influenced by culture methods and growth conditions but remain consistently around 300 molecules per cell in environmental samples. The amount of pseudocobalamin in cells appears to be loosely coupled to the demand for pseudocobalamin by the enzyme methionine synthase (MetH).
Catherine C. Bannon, Maria A. Soto, Elden Rowland, Nan Chen, Anna Gleason, Emmanuel Devred, Julie LaRoche, Erin M. Bertrand   +7 more
wiley   +1 more source

Porphyrin and corrinoid mutants of Bacillus subtilis [PDF]

Journal of Bacteriology, 1977
Porphyrin auxotrophs of Bacillus subtilis can be divided into two groups. Strains belonging to the first group (hemA, hemB, or hemC) are not able to synthesize or metabolize porphobilinogen. These strains require cysteine, cystine, and methionine, respectively.
openaire   +2 more sources

A comprehensive estimate for loss of atmospheric carbon tetrachloride (CCl4) to the ocean [PDF]

, 2016
© The Author(s), 2016. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Atmospheric Chemistry and Physics 16 (2016): 10899-10910, doi:10.5194/acp-16-10899-2016.Extensive ...
Bullister, John L., Butler, James H., Elkins, James W., Hall, Bradley D., Hu, Lei, King, Daniel B., Koropalov, Valentin, Liu, Yina, Lobert, Jurgen M., Montzka, Stephen, Yvon-Lewis, Shari   +10 more
core   +3 more sources

Report of the Scientific Committee of the Food Safety Authority of Ireland on the suitability of analytical methods for assessing food authenticity

Food Risk Assess Europe, Volume 2, Issue 4, October 2024.
Executive summary The Food Safety Authority of Ireland (FSAI) requested its Scientific Committee to advise on the criteria and analytical controls that should be considered when examining the potential use of new laboratory techniques in assessing food authenticity. A subcommittee of experts in various analytical fields was established to prepare draft
Pat O'Mahony, Chloe Glennon, Cormac McElhinney, Martin Danaher, Conor Graham, Montserrat Gutierrez, Alan Kelly, Kieran Kilcawley, David Lee, Ed Malone, Anne Molloy, Tom O'Callaghan, Ita Kinahan   +12 more
wiley   +1 more source

Geochemical and microbial community determinants of reductive dechlorination at a site biostimulated with glycerol [PDF]

, 2016
Biostimulation is widely used to enhance reductive dechlorination of chlorinated ethenes in contaminated aquifers. However, the knowledge on corresponding biogeochemical responses is limited. In this study glycerol was injected in an aquifer contaminated
Abelson, Aeppli, Anderson, Atashgahi, Atashgahi, Bernardet, Bernardet, Biebl, Bowman, Briée, Brown, Campbell, Canfield, Caporaso, Clarke, Damgaard, Daprato, Dennis, Dojka, Dugat-Bony, Duhamel, Duhamel, Eisenmann, Ellis, Elshahed, Freeborn, Gelder, Gihring, Gonzáles, Goris, Goris, Gu, Hamonts, Handley, Handley, He, He, Hendrickson, Hoelen, Hohnstock-Ashe, Hug, Imfeld, Imfeld, Kao, Kielhorn, Kocur, Kodama, Kodama, Lee, Lee, Lendvay, Leys, Lowe, Luijten, Luo, Lê Cao, Löffler, Löffler, Macbeth, Maillard, Major, Men, Men, Men, Merlino, Moe, Peura, Puigserver, Pérez-De-Mora, Qatibi, Qatibi, Quast, Rabus, Rahm, Ramiro-Garcia, Richardson, Ritalahti, Rossi, Rowe, Révész, Scheutz, Scheutz, Schipp, Schneidewind, Shade, Smatlak, Stroo, Sutton, Sutton, Tsai, Wilkens, Wrighton, Wrighton, Yan, Yan, Yang, Zhou, Zhuang   +97 more
core   +2 more sources

Reductive dechlorination in the energy metabolism of anaerobic bacteria [PDF]

, 2017
Within the last few decades, several anaerobic bacteria have been isolated which are able to reductively dechlorinate chlorinated aliphatic and aromatic compounds at catabolic rates.
Diekert, Gabriele, Holliger, Christof, Wohlfarth, Gert   +2 more
core  

Redox, haem and CO in enzymatic catalysis and regulation [PDF]

, 2012
The present paper describes general principles of redox catalysis and redox regulation in two diverse systems. The first is microbial metabolism of CO by the Wood–Ljungdahl pathway, which involves the conversion of CO or H2/CO2 into acetyl-CoA, which ...
Bender, Güneş, Bianchetti, Christopher M., Britt, R. David, Cramer, Stephen P., Doukov, Tzanko I., Drennan, Catherine L., George, Simon J., Gupta, Nirupama, Jakob, Ursula, Jenkins, Paul M., Kung, Yan, Leichert, Lars, Martens, Jeffrey R., Phillips, George N., Ragsdale, Stephen W., Stich, Troy A., Yan, Lifen, Yi, Li   +17 more
core   +1 more source