Results 91 to 100 of about 97,911 (315)

Electrochemical Protection of Cyanobacterial Cells from Molecular Oxygen Enables Sustained PhotoH2 Production

open access: yesAngewandte Chemie International Edition, EarlyView.
Photosynthetic microorganisms can be used to perform H2 evolution driven by light. However, a crucial limitationlies in the associated generation of molecular oxygen as a by‐product of photosynthesis, which compromises the activity of the biocatalyst performing H2 production, i.e., the hydrogenase.
Panpan Wang   +6 more
wiley   +1 more source

Reduction of Flavodoxin by Electron Bifurcation and Sodium Ion-dependent Reoxidation by NAD+ Catalyzed by Ferredoxin-NAD+ Reductase (Rnf)*

open access: yesJournal of Biological Chemistry, 2016
Electron-transferring flavoprotein (Etf) and butyryl-CoA dehydrogenase (Bcd) from Acidaminococcus fermentans catalyze the endergonic reduction of ferredoxin by NADH, which is also driven by the concomitant reduction of crotonyl-CoA by NADH, a process ...
Nilanjan Chowdhury   +3 more
semanticscholar   +1 more source

Electron Bifurcation and Confurcation in Methanogenesis and Reverse Methanogenesis

open access: yesFrontiers in Microbiology, 2018
Reduction of the disulfide of coenzyme M and coenzyme B (CoMS–SCoB) by heterodisulfide reductases (HdrED and HdrABC) is the final step in all methanogenic pathways. Flavin-based electron bifurcation (FBEB) by soluble HdrABC homologs play additional roles
Zhen Yan, James G. Ferry
doaj   +1 more source

Energy Conservation in Fermentations of Anaerobic Bacteria

open access: yesFrontiers in Microbiology, 2021
Anaerobic bacteria ferment carbohydrates and amino acids to obtain energy for growth. Due to the absence of oxygen and other inorganic electron acceptors, the substrate of a fermentation has to serve as electron donor as well as acceptor, which results ...
Wolfgang Buckel
doaj   +1 more source

Influence of Zn2+ and Oxygen Supply on Malic Acid Production and Growth of Aspergillus oryzae

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Malic acid is a valuable platform chemical traditionally derived from fossil‐based resources. Microbial cultivation with Aspergillus oryzae offers a sustainable alternative based on renewable feedstocks. In this study, a well‐established minimal medium for malic acid production, commonly used in previous research to ensure reproducibility, was
Lukas Hartmann   +3 more
wiley   +1 more source

Structure of the bacterial plant-ferredoxin receptor FusA

open access: yesNature Communications, 2016
Iron is a limiting nutrient in bacterial infection putting it at the centre of an evolutionary arms race between host and pathogen. Gram-negative bacteria utilize TonB-dependent outer membrane receptors to obtain iron during infection.
R. Grinter   +10 more
semanticscholar   +1 more source

A dynamic protein interactome drives energy conservation and electron flux in Thermococcus kodakarensis

open access: yesApplied and Environmental Microbiology
Life is supported by energy gains fueled by catabolism of a wide range of substrates, each reliant on the selective partitioning of electrons through redox (reduction and oxidation) reactions.
Sere A. Williams   +6 more
doaj   +1 more source

Biomaterial design strategies for enhancing mitochondrial transplantation therapy

open access: yesBMEMat, EarlyView.
Biomaterials to facilitate mitochondrial transplantation therapy: biomaterials as barriers to protect mitochondria from pathophysiological microenvironments, like osmotic stress caused by the excessive concentration of calcium ion, reactive oxygen species, and advanced glycation end products; biomaterials integrating with biochemical cues to improve ...
Shaoyang Kang   +12 more
wiley   +1 more source

Oxidation of P700 Induces Alternative Electron Flow in Photosystem I in Wheat Leaves

open access: yesPlants, 2019
Oxygen (O2)-evolving photosynthetic organisms oxidize the reaction center chlorophyll, P700, in photosystem I (PSI) to suppress the production of reactive oxygen species.
Kanae Kadota   +5 more
doaj   +1 more source

CO2-Induced Transcriptional Reorganization: Molecular Basis of Capnophillic Lactic Fermentation in Thermotoga neapolitana [PDF]

open access: yes, 2020
Capnophilic lactic fermentation (CLF) is a novel anaplerotic pathway able to convert sugars to lactic acid (LA) and hydrogen using CO2 as carbon enhancer in the hyperthermophilic bacterium Thermotoga neapolitana.
Dipasquale, Laura   +7 more
core   +2 more sources

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