Results 101 to 110 of about 20,026 (345)

The Nitrate Assimilatory Pathway in Sinorhizobium meliloti: Contribution to NO Production

open access: yesFrontiers in Microbiology, 2019
The interaction between rhizobia and their legume host plants culminates in the formation of specialized root organs called nodules in which differentiated endosymbiotic bacteria (bacteroids) fix atmospheric nitrogen to the benefit of the plant ...
Bryan Ruiz   +5 more
doaj   +1 more source

Tungstoenzymes: Occurrence, Catalytic Diversity and Cofactor Synthesis

open access: yesInorganics, 2020
Tungsten is the heaviest element used in biological systems. It occurs in the active sites of several bacterial or archaeal enzymes and is ligated to an organic cofactor (metallopterin or metal binding pterin; MPT) which is referred to as tungsten ...
Carola S. Seelmann   +3 more
doaj   +1 more source

Analysis of acid-stressed Bacillus cereus reveals a major oxidative response and inactivation-associated radical formation [PDF]

open access: yes, 2010
Acid stress resistance of the food-borne human pathogen Bacillus cereus may contribute to its survival in acidic environments, such as encountered in soil, food and the human gastrointestinal tract. The acid stress responses of B.
Abee, T.   +4 more
core   +2 more sources

Bioinspired Interfacial Hydration Engineering via Metal–Organic Frameworks for Efficient Nitrate‐To‐Ammonia Conversion in Neutral Media

open access: yesAdvanced Science, EarlyView.
Inspired by Nitrite reductase, a metal–organic framework overlayer is introduced to regulate the interfacial hydration microenvironment on Cu electrodes, enriching hydrated K+ species that act as efficient proton donors. This strategy enables nitrate‐to‐ammonia conversion with near‐unity selectivity at industrial‐level current densities in neutral ...
Yuyin Mao   +4 more
wiley   +1 more source

Understanding the Catalytic Determinant role of Diaphorase‐Like Subunit in Formate Dehydrogenases via Redox Couples

open access: yesAdvanced Science, EarlyView.
A unique mechanism of catalytic bias regulated by diaphorase‐like subunit in formate dehydrogenase from Rhodobacter aestuarii is revealed. The diaphorase‐like subunit functions act as a biological “voltage rheostat” that controls the slow release of NADH to regulate redox balance, biasing the enzyme's catalytic preference toward CO2 reduction over ...
Kuncheng Zhang   +7 more
wiley   +1 more source

Microbial Community and in situ Bioremediation of Groundwater by Nitrate Removal in the Zone of a Radioactive Waste Surface Repository

open access: yesFrontiers in Microbiology, 2018
The goal of the present work was to investigate the physicochemical and radiochemical conditions and the composition of the microbial community in the groundwater of a suspended surface repository for radioactive waste (Russia) and to determine the ...
Alexey V. Safonov   +12 more
doaj   +1 more source

Natural History of Chronic Kidney Disease in Sickle Cell Disease

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT Kidney complications, referred to as nephropathy, develop early in sickle cell disease (SCD). In addition to its known morbidity, abundant data show that chronic kidney disease (CKD) is associated with an increased mortality risk in SCD. Increasing evidence suggests that the natural history of SCD nephropathy is progressive. Initial glomerular
Kenneth I. Ataga
wiley   +1 more source

Metagenomic potential for and diversity of N‐cycle driving microorganisms in the Bothnian Sea sediment

open access: yesMicrobiologyOpen, 2017
The biological nitrogen cycle is driven by a plethora of reactions transforming nitrogen compounds between various redox states. Here, we investigated the metagenomic potential for nitrogen cycle of the in situ microbial community in an oligotrophic ...
Olivia Rasigraf   +3 more
doaj   +1 more source

The Regulation of Nitrate Reductases in Response to Abiotic Stress in Arabidopsis. [PDF]

open access: yesInt J Mol Sci, 2022
Tang X   +6 more
europepmc   +1 more source

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