Results 11 to 20 of about 6,837 (257)

Phyloecology of nitrate ammonifiers and their importance relative to denitrifiers in global terrestrial biomes

open access: yesNature Communications, 2023
Nitrate ammonification is important for soil nitrogen retention. However, the ecology of ammonifiers and their prevalence compared with denitrifiers, being competitors for nitrate, are overlooked.
Aurélien Saghaï   +3 more
doaj   +1 more source

Microbiome Structure and Function in Woodchip Bioreactors for Nitrate Removal in Agricultural Drainage Water

open access: yesFrontiers in Microbiology, 2021
Woodchip bioreactors are increasingly used to remove nitrate (NO3–) from agricultural drainage water in order to protect aquatic ecosystems from excess nitrogen. Nitrate removal in woodchip bioreactors is based on microbial processes, but the microbiomes
Arnaud Jéglot   +8 more
doaj   +1 more source

Underestimation about the Contribution of Nitrate Reducers to Iron Cycling Indicated by Enterobacter Strain

open access: yesMolecules, 2022
Nitrate-reducing iron(II) oxidation (NRFO) has been intensively reported in various bacteria. Iron(II) oxidation is found to be involved in both enzymatic and chemical reactions in nitrate-reducing Fe(II)-oxidizing microorganisms (NRFOMs).
Ming-Jun Li   +3 more
doaj   +1 more source

Characteristics of a Nitrate Reductase in a Barley Mutant Deficient in NADH Nitrate Reductase [PDF]

open access: yesPlant Physiology, 1982
A barley (Hordeum vulgare L.) mutant, nar1a (formerly Az12), deficient in NADH nitrate reductase activity is, nevertheless, capable of growth with nitrate as the sole nitrogen source. In an attempt to identify the mechanism(s) of nitrate reduction in the mutant, nitrate reductase from nar1a was characterized to determine whether the residual activity ...
F A, Dailey   +3 more
openaire   +2 more sources

Rapid and environment‐friendly preparation of silver nanoparticles and their inhibition against phytopathogenic fungi

open access: yesMicro & Nano Letters, 2021
Microbial‐assisted biosynthesis of silver nanoparticles (AgNPs) has been developed rapidly in recent years, but their mechanism of synthesis and production are still unknown.
Lei Zhao   +3 more
doaj   +1 more source

Rhizobium etli Produces Nitrous Oxide by Coupling the Assimilatory and Denitrification Pathways

open access: yesFrontiers in Microbiology, 2019
More than two-thirds of the powerful greenhouse gas nitrous oxide (N2O) emissions from soils can be attributed to microbial denitrification and nitrification processes.
Alba Hidalgo-García   +5 more
doaj   +1 more source

Light-Independent Nitrogen Assimilation in Plant Leaves: Nitrate Incorporation into Glutamine, Glutamate, Aspartate, and Asparagine Traced by 15N

open access: yesPlants, 2020
Although the nitrate assimilation into amino acids in photosynthetic leaf tissues is active under the light, the studies during 1950s and 1970s in the dark nitrate assimilation provided fragmental and variable activities, and the mechanism of reductant ...
Tadakatsu Yoneyama, Akira Suzuki
doaj   +1 more source

Cloning and nitrate induction of nitrate reductase mRNA [PDF]

open access: yesProceedings of the National Academy of Sciences, 1986
Nitrate is the major source of nitrogen taken from the soil by higher plants but requires reduction to ammonia prior to incorporation into amino acids. The first enzyme in the reducing pathway is a nitrate-inducible enzyme, nitrate reductase (EC 1.6.6.1).
C L, Cheng   +3 more
openaire   +2 more sources

Nitrate Reductase mRNA Regulation in Nicotiana plumbaginifolia Nitrate Reductase-Deficient Mutants [PDF]

open access: yesThe Plant Cell, 1989
Light and substrate regulation of nitrate reductase (NR) expression were compared in wild type and mutant lines of Nicotiana plumbaginifolia. Mutants affected in the NR structural gene (nia) or in the biosynthesis of the NR molybdenum cofactor (cnx) were examined.
Pouteau, Sylvie   +3 more
openaire   +3 more sources

Migraines Are Correlated with Higher Levels of Nitrate-, Nitrite-, and Nitric Oxide-Reducing Oral Microbes in the American Gut Project Cohort

open access: yesmSystems, 2016
Nitrates, such as cardiac therapeutics and food additives, are common headache triggers, with nitric oxide playing an important role. Facultative anaerobic bacteria in the oral cavity may contribute migraine-triggering levels of nitric oxide through the ...
Antonio Gonzalez   +5 more
doaj   +1 more source

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