Results 21 to 30 of about 68,942 (307)
Production of Four 15N-Labelled Cobalamins via Biosynthesis Using Propionibacterium freudenreichii
Frontiers in Microbiology, 2021 Cobalamins (vitamin B12) are required by humans for their essential roles as enzyme cofactors in diverse metabolic processes. The four most common cobalamin vitamers are hydroxocobalamin (OHCbl), adenosylcobalamin (AdoCbl), methylcobalamin (MeCbl), and ...
Mengle Wang +4 more
doaj +1 more source
Evaluation of deep root phenotyping techniques in tube rhizotrons
Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2019 Selection for deep rooting is critical for the development of genotypes that are able to explore deep soil water and nutrients, particularly as agricultural resources become more limited.
Si Chen +3 more
doaj +1 more source
Global Ecology and Conservation, 2022 In N-limited temperate regions of China, rates of atmospheric N deposition remain high during winter due to industrial development and energy consumption. Winter-deposited N accumulates and is then released after snowmelt.
Linna Ma +3 more
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Impact of two-bond 15N–15N scalar couplings on 15N transverse relaxation measurements for arginine side chains of proteins [PDF]
Journal of Biomolecular NMR, 2018 NMR relaxation of arginine (Arg) 15Nε nuclei is useful for studying side-chain dynamics of proteins. In this work, we studied the impact of two geminal 15N-15N scalar couplings on measurements of transverse relaxation rates (R 2 ) for Arg side-chain 15Nε nuclei.
Dan Nguyen, Junji Iwahara
openaire +2 more sources
Protein restricted diet during gestation and/or lactation in mice affects 15N natural isotopic abundance of organs in the offspring: Effect of diet 15N content and growth. [PDF]
PLoS ONE, 2018 OBJECTIVES AND STUDY:This study aimed at measuring the effect in normal to restricted protein diets with specific 15N natural isotopic abundance (NIA) given during gestation and/or lactation on the 15N NIA of fur, liver and muscle in dams and their ...
Karine Bernardo +7 more
doaj +1 more source
Response of Two Potato Varieties to Irrigation Methods in the Dry Mediterranean Area
Agriculture, 2018 Due to water scarcity and dry Mediterranean conditions, improving water use efficiency is a major challenge for sustainable crop production and environment protection.
Mubarak Ibrahim +2 more
doaj +1 more source
Frontiers in Plant Science, 2014 Stable 15N isotopes have been used to examine movement of nitrogen (N) through various pools of the global N cycle. A central reaction in the cycle involves nitrate (NO3–) reduction to nitrite (NO2–) catalyzed via nitrate reductase (NR).
Eli eCarlisle +3 more
doaj +1 more source
Frontiers in Plant Science, 2019 To develop efficient N management strategies for high wheat NUE and minimizing the environmental impact of N losses under asymmetric warming, 15N micro-plot experiments were conducted to investigate the effects of night-warming during winter (warming by ...
Chenxi Hu +8 more
doaj +1 more source
Tracking Animal-Dispersed Seedlings Using 15N Xylem Injection Method
Frontiers in Plant Science, 2021 Although various seed-marking methods have been developed for seed dispersal, it remains difficult to track the actual patterns of seed dispersal and seedling recruitment. Thus, new labeling methods that accurately track seedling establishment along with
Minghui Wang +3 more
doaj +1 more source
, 2023 Limited field research has investigated the impact of poultry litter (PL) on urea-nitrogen (N) recovery in irrigated cropping systems. This study investigated the effect of PL (nil or 15t ha−1) on the fate of 15N-labelled urea at different rates (0, 50 ...
Quayle, Wendy C. +2 more
core +1 more source