Results 51 to 60 of about 42,432 (227)

Hydrogen-Cycling during Solventogenesis in Clostridium acetobutylicum American Type Culture Collection (ATCC) 824 Requires the [NiFe]-Hydrogenase for Energy Conservation

open access: yesFermentation, 2018
Clostridium acetobutylicum has traditionally been used for production of acetone, butanol, and ethanol (ABE). Butanol is a commodity chemical due in part to its suitability as a biofuel; however, the current yield of this product from biological systems ...
Katherine L. Germane   +9 more
doaj   +1 more source

Studies on hydrogenase

open access: yesProceedings of the Japan Academy, Series B, 2013
Hydrogenases are microbial enzymes which catalyze uptake and production of H(2). Hydrogenases are classified into 10 classes based on the electron carrier specificity, or into 3 families, [NiFe]-family (including [NiFeSe]-subfamily), [FeFe]-family and [Fe]-family, based on the metal composition of the active site. H(2) is heterolytically cleaved on the
YAGI, Tatsuhiko, HIGUCHI, Yoshiki
openaire   +3 more sources

The [FeFe] hydrogenase of Nyctotherus ovalis has a chimeric origin

open access: yesBMC Evolutionary Biology, 2007
Background The hydrogenosomes of the anaerobic ciliate Nyctotherus ovalis show how mitochondria can evolve into hydrogenosomes because they possess a mitochondrial genome and parts of an electron-transport chain on the one hand, and a hydrogenase on the ...
Jouany Jean-Pierre   +16 more
doaj   +1 more source

Role of the reversible electrochemical deprotonation of phosphate species in anaerobic biocorrosion of steels [PDF]

open access: yes, 2007
Sulphate reducing bacteria are known to play a major role in anaerobic microbiological influenced corrosion of steels, but mechanisms behind their influence are still source of debates as certain phenomena remain unexplained.
Alain Bergel   +53 more
core   +3 more sources

Induction of photosynthesis under anoxic condition in Thalassiosira pseudonana and Euglena gracilis: interactions between fermentation and photosynthesis

open access: yesFrontiers in Plant Science, 2023
IntroductionIn their natural environment, microalgae can be transiently exposed to hypoxic or anoxic environments. Whereas fermentative pathways and their interactions with photosynthesis are relatively well characterized in the green alga model ...
Gwenaëlle Gain   +5 more
doaj   +1 more source

Contrasted Reactivity to Oxygen Tensions in Frankia sp. Strain CcI3 throughout Nitrogen Fixation and Assimilation [PDF]

open access: yes, 2014
Reconciling the irreconcilable is a primary struggle in aerobic nitrogen-fixing bacteria. Although nitrogenase is oxygen and reactive oxygen species-labile, oxygen tension is required to sustain respiration.
Beauchemin, Nicholas   +6 more
core   +4 more sources

A nonmitochondrial hydrogen production in Naegleria gruberi [PDF]

open access: yes, 2014
Naegleria gruberi is a free-living heterotrophic aerobic amoeba well known for its ability to transform from an amoeba to a flagellate form. The genome of N.
Anastasios D. Tsaousis   +39 more
core   +2 more sources

Distribution analysis of hydrogenases in surface waters of marine and freshwater environments. [PDF]

open access: yesPLoS ONE, 2010
BACKGROUND: Surface waters of aquatic environments have been shown to both evolve and consume hydrogen and the ocean is estimated to be the principal natural source.
Martin Barz   +12 more
doaj   +1 more source

Exploration of H2 binding to the [NiFe]-hydrogenase active site with multiconfigurational density functional theory [PDF]

open access: yes, 2017
The combination of density functional theory (DFT) with a multiconfigurational wave function is an efficient way to include dynamical correlation in calculations with multiconfiguration self-consistent field wave functions.
Dong, Geng   +3 more
core   +3 more sources

An essential role of the reversible electron-bifurcating hydrogenase Hnd for ethanol oxidation in Solidesulfovibrio fructosivorans

open access: yesFrontiers in Microbiology, 2023
The tetrameric cytoplasmic FeFe hydrogenase Hnd from Solidesulfovibrio fructosivorans (formely Desulfovibrio fructosovorans) catalyses H2 oxidation and couples the exergonic reduction of NAD+ to the endergonic reduction of a ferredoxin by using a flavin ...
Arlette Kpebe   +9 more
doaj   +1 more source

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