Results 11 to 20 of about 4,158 (201)

Integrative Genomics Sheds Light on Evolutionary Forces Shaping the Acidithiobacillia Class Acidophilic Lifestyle

Frontiers in Microbiology, 2022
Extreme acidophiles thrive in environments rich in protons (pH values <3) and often high levels of dissolved heavy metals. They are distributed across the three domains of the Tree of Life including members of the Proteobacteria. The Acidithiobacillia
Carolina González-Rosales, Carolina González-Rosales, Eva Vergara, Mark Dopson, Jorge H. Valdés, David S. Holmes, David S. Holmes   +6 more
doaj   +1 more source

Ferric Iron Reduction in Extreme Acidophiles

Frontiers in Microbiology, 2022
Biochemical processes are a key element of natural cycles occurring in the environment and enabling life on earth. With regard to microbially catalyzed iron transformation, research predominantly has focused on iron oxidation in acidophiles, whereas iron
Luise Malik, Sabrina Hedrich
doaj   +1 more source

Biosulfidogenesis Mediates Natural Attenuation in Acidic Mine Pit Lakes

Microorganisms, 2020
Acidic pit lakes are abandoned open pit mines filled with acid mine drainage (AMD)—highly acidic, metalliferous waters that pose a severe threat to the environment and are rarely properly remediated.
Charlotte M. van der Graaf, Javier Sánchez-España, Iñaki Yusta, Andrey Ilin, Sudarshan A. Shetty, Nicole J. Bale, Laura Villanueva, Alfons J. M. Stams, Irene Sánchez-Andrea   +8 more
doaj   +1 more source

Acetate Degradation at Low pH by the Moderately Acidophilic Sulfate Reducer Acididesulfobacillus acetoxydans gen. nov. sp. nov.

Frontiers in Microbiology, 2022
In acid drainage environments, biosulfidogenesis by sulfate-reducing bacteria (SRB) attenuates the extreme conditions by enabling the precipitation of metals as their sulfides, and the neutralization of acidity through proton consumption.
Irene Sánchez-Andrea, Charlotte M. van der Graaf, Bastian Hornung, Nicole J. Bale, Monika Jarzembowska, Diana Z. Sousa, W. Irene C. Rijpstra, Jaap S. Sinninghe Damsté, Jaap S. Sinninghe Damsté, Alfons J. M. Stams, Alfons J. M. Stams   +10 more
doaj   +1 more source

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

, 2022
Hepatology, EarlyView.
Robert J. Fontana, Iris Liou, Adrian Reuben, Ayako Suzuki, M. Isabel Fiel, William Lee, Victor Navarro   +6 more
wiley   +1 more source

An Adaptation To Life In Acid Through A Novel Mevalonate Pathway. [PDF]

, 2016
Extreme acidophiles are capable of growth at pH values near zero. Sustaining life in acidic environments requires extensive adaptations of membranes, proton pumps, and DNA repair mechanisms.
Bowie, James U, Cummins, Matthew C, Korman, Tyler P, Vinokur, Jeffrey M   +3 more
core   +1 more source

Fe/S Redox-Coupled Mercury Transformation Mediated by Acidithiobacillus ferrooxidans ATCC 23270 under Aerobic and/or Anaerobic Conditions

Microorganisms, 2023
Bioleaching processes or microbially mediated iron/sulfur redox processes in acid mine drainage (AMD) result in mineral dissolution and transformation, the release of mercury and other heavy metal ions, and changes in the occurrence forms and ...
Yue Liu, Chenyun Gu, Hongchang Liu, Yuhang Zhou, Zhenyuan Nie, Yirong Wang, Lu Chen, Jinlan Xia   +7 more
doaj   +1 more source

Metal resistance or tolerance? Acidophiles confront high metal loads via both abiotic and biotic mechanisms

Frontiers in Microbiology, 2014
All metals are toxic at high concentrations and consequently their intracellular concentrations must be regulated. Acidophilic microorganisms have an optimum growth pH < 3 and proliferate in natural and anthropogenic low pH environments. Some acidophiles
Mark eDopson, Francisco eOssandon, Francisco eOssandon, Lars eLövgren, David S Holmes, David S Holmes   +5 more
doaj   +1 more source

Gene Loss and Horizontal Gene Transfer Contributed to the Genome Evolution of the Extreme Acidophile “Ferrovum” [PDF]

, 2016
Indexación: Web of Science. Scopus.Acid mine drainage (AMD), associated with active and abandoned mining sites, is a habitat for acidophilic microorganisms that gain energy from the oxidation of reduced sulfur compounds and ferrous iron and that thrive ...
Daniel, Rolf, González, Carolina, Holmes, David S., Mühling, Martin, Poehlein, Anja, Schlömann, Michael, Tischler, Judith S., Ullrich, Sophie R.   +7 more
core   +2 more sources

Redox transformations of iron at extremely low pH: fundamental and applied aspects

Frontiers in Microbiology, 2012
Many different species of acidophilic prokaryotes, widely distributed within the domains Bacteria and Archaea, can catalyze the dissimilatory oxidation of ferrous iron or reduction of ferric iron, or can do both.
D. Barrie eJohnson, Tadayoshi eKanao, Sabrina eHedrich   +2 more
doaj   +1 more source