Results 71 to 80 of about 1,069,262 (320)

Diurnal Changes in Active Carbon and Nitrogen Pathways Along the Temperature Gradient in Porcelana Hot Spring Microbial Mat

open access: yesFrontiers in Microbiology, 2018
Composition, carbon and nitrogen uptake, and gene transcription of microbial mat communities in Porcelana neutral hot spring (Northern Chilean Patagonia) were analyzed using metagenomics, metatranscriptomics and isotopically labeled carbon (H13CO3) and ...
María E. Alcamán-Arias   +11 more
doaj   +1 more source

GlnR negatively regulates the transcription of the alanine dehydrogenase encoding gene ald in Amycolatopsis mediterranei U32 under nitrogen limited conditions via specific binding to its major transcription initiation site. [PDF]

open access: yesPLoS ONE, 2014
Ammonium assimilation is catalyzed by two enzymatic pathways, i.e., glutamine synthetase/glutamate synthase (GS/GOGAT) and alanine dehydrogenase (AlaDH) in Amycolatopsis mediterranei U32.
Ying Wang   +8 more
doaj   +1 more source

Nitrogen Isotopes in the Global Ocean [PDF]

open access: yes, 2013
Nitrogen is an essential nutrient for life. Its low abundance throughout much of the sunlit surface ocean limits the growth of primary producers that form the base of ocean ecosystems.
Somes, Christopher J.   +1 more
core  

Food Prices and Inflation Expectations in New Zealand

open access: yesAgribusiness, EarlyView.
ABSTRACT Food prices are conspicuous, and spending on food constitutes a considerable share of household expenditure. In this study, we use partially identified Bayesian structural vector autoregression models to analyze the effects of food price shocks on core inflation and 1‐ and 5‐year inflation expectations in New Zealand.
Puneet Vatsa   +2 more
wiley   +1 more source

Post-Translational Control of Nitrate Reductase Under Elevated CO2 in Solanum lycopersicum: Carbon–Nitrogen Signaling and Photosynthetic Acclimation

open access: yesPlants
Rising atmospheric CO2 is altering carbon–nitrogen interactions in C3 crops, with tomato (Solanum lycopersicum L.) showing enhanced carbon assimilation but frequently reduced nitrogen acquisition and assimilation.
Abhishek Sahoo, Mukesh Meena
doaj   +1 more source

Comparing the assimilation of dietary nitrogen supplied by animal-, plant- and microbial-derived ingredients in Pacific white shrimp Litopenaeus vannamei: A stable isotope study

open access: yesAquaculture Reports, 2020
In order to become a more profitable and sustainable industry, the aquaculture sector is constantly exploring alternative nutrient sources. In the present study, the natural stable isotope signatures of different animal-, plant- and microbial-derived ...
Julián Gamboa-Delgado   +5 more
doaj   +1 more source

Nitrogen Assimilation in Mycorrhizas [PDF]

open access: yesPlant Physiology, 1984
Ammonium assimilation was followed in N-starved mycelia from the ectomycorrhizal Ascomycete Cenococcum graniforme. The evaluation of free amino acid pool levels after the addition of 5 millimolar NH(4) (+) indicated that the absorbed ammonium was assimilated rapidly.
I, Genetet, F, Martin, G R, Stewart
openaire   +2 more sources

Nitrogen regulation of protein–protein interactions and transcript levels of GlnK PII regulator and AmtB ammonium transporter homologs in Archaea [PDF]

open access: yes, 2013
Gene homologs of GlnK PII regulators and AmtB-type ammonium transporters are often paired on prokaryotic genomes, suggesting these proteins share an ancient functional relationship.
Soppa, Jörg   +6 more
core   +1 more source

Elucidation of inorganic nitrogen utilization characteristics in Coix lacryma-jobi L. seedlings under variable ammonium/nitrate ratios via the 15N tracer technique

open access: yesBMC Plant Biology
The coordination between nitrogen assimilation and carbon fixation is a key determinant of crop productivity. However, for Coix lacryma-jobi L.—an underutilized cereal with high nutritional and medicinal value—the interplay between nitrogen source and ...
Yue Su, Kaiyan Zhang, Yanyou Wu
doaj   +1 more source

Omeprazole Treatment Enhances Nitrogen Use Efficiency Through Increased Nitrogen Uptake and Assimilation in Corn

open access: yesFrontiers in Plant Science, 2019
Omeprazole is a selective proton pump inhibitor in humans that inhibits the H+/K+-ATPase of gastric parietal cells. Omeprazole has been recently shown to act as a plant growth regulator and enhancer of salt stress tolerance.
Michael James Van Oosten   +7 more
doaj   +1 more source

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