Results 71 to 80 of about 7,838 (225)

Relative Contribution of Nitrogen Absorption, Remobilization, and Partitioning to the Ear During Grain Filling in Chinese Winter Wheat

Frontiers in Plant Science, 2018
Knowledge of the function of the ear as a key organ in the uptake, remobilization and partitioning of nitrogen is essential for understanding its contribution to grain filling and thus guiding future breeding strategies. In this work, four Chinese winter
Bangwei Zhou, Maria Dolores Serret, Jordi Bort Pie, Syed Sadaqat Shah, Zhijian Li   +4 more
doaj   +1 more source

Constraints on oceanic N balance/imbalance from sedimentary ¹⁵ N records [PDF]

Biogeosciences, 2006
Abstract. According to current best estimates, the modern ocean's N cycle is in severe deficit. N isotope budgeting provides an independent geochemical constraint in this regard as well as the only means for past reconstruction. Overall, it is the relative proportion of N2 fixation consumed by water column denitrification that sets average oceanic δ15N
openaire   +5 more sources

Redefining the Nitrogen Cycle Through Electronic Configuration Driven Electrocatalysis for Low Carbon Energy

Carbon Energy, EarlyView.
This review reveals how electronic configuration engineering governs the entire electrocatalytic nitrogen cycle, providing structure‐informed insights into reaction selectivity, catalytic durability, and sustainable nitrogen utilization across energy and environmental systems. ABSTRACT The global nitrogen cycle is essential to food production, chemical
Jiamu Feng, Linai Zhou, Mincan Yang, Aoxiang Zhu, Zengfeng Wei, Weilin Xu, Jia Li, Jun Wan   +7 more
wiley   +1 more source

Optimal N management affects the fate of urea-15N and improves N uptake and utilization of wheat in different rotation systems

Frontiers in Plant Science
Rice-wheat and maize-wheat rotations are major cropping systems in the middle and lower reaches of Yangtze River in China, where high nitrogen (N) inputs and low N efficiency often exacerbate resource waste and environmental pollution. Due to the changes
Quan Ma, Dandan Dai, Yifan Cao, Qiaoqiao Yu, Xiyang Cheng, Min Zhu, Min Zhu, Jinfeng Ding, Jinfeng Ding, Chunyan Li, Chunyan Li, Wenshan Guo, Wenshan Guo, Guisheng Zhou, Xinkai Zhu, Xinkai Zhu, Xinkai Zhu   +16 more
doaj   +1 more source

De Novo Design of Multivalent α/β‐Peptides Mimicking Transcription Factors Targeting the CBP KIX Domain

Chemistry – A European Journal, EarlyView.
A modular, de novo α/β‐peptide design strategy allows fine‐tuning of ligand properties, resulting in multivalent ligands that simultaneously target separate binding sites on the protein surface. ABSTRACT Protein‐protein interactions that regulate gene expression in the nucleus are increasingly recognized as potential therapeutic targets but present ...
Márk V. Tresztián, Vencel L. Petrovicz, Edit Wéber, Tamás A. Martinek, Zsófia Hegedüs   +4 more
wiley   +1 more source

A systematic simulation of the effect of salicylic acid on sphingolipid metabolism

Frontiers in Plant Science, 2015
The phytohormone salicylic acid (SA) affects plant development and defense responses. Recent studies revealed that SA also participates in the regulation of sphingolipid metabolism, but the details of this regulation remain to be explored.
Chao eShi, Jian eYin, Zhe eLiu, Jian-xin eWu, Qi eZhao, Jian eRen, Nan eYao   +6 more
doaj   +1 more source

Decoding Heptazine Architectures: From Molecular Association to Structural Insight

Chemistry – A European Journal, EarlyView.
A comprehensive study (NMR and theoretical) of three novel heptazine derivatives that self‐assemble into dimers has been conducted, highlighting their versatility as a platform for multifunctional supramolecular and optoelectronic materials. ABSTRACT Heptazine (Hpz) derivatives display remarkable supramolecular organization governed by noncovalent ...
Silvia del Moral, Daniel Barrena‐Espés, Julen Munarriz, Matthias Lehmann, Pilar Romero, José Luis Serrano   +5 more
wiley   +1 more source

Effect of sorghum tannins in sheep fed with high-concentrate diets

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
The aim of this study was to evaluate the nutritional value of three sorghum cultivars with different concentrations of condensed tannins in sheep diets.
S.L.S. Cabral Filho, A.L. Abdalla, I.C.S. Bueno, S.P. Gobbo, A.A.M. Oliveira   +4 more
doaj   +1 more source

Lysimeter-based full fertilizer 15N balances corroborate direct dinitrogen emission measurements using the 15N gas flow method

Biology and Fertility of Soils
Abstract The 15N gas flux (15NGF) method allows for direct in situ quantification of dinitrogen (N2) emissions from soils, but a successful cross-comparison with another method is missing. The objectives of this study were to quantify N2 emissions of a wheat rotation using the 15NGF method, to compare these N2 emissions with those obtained ...
Irina Yankelzon, Lexie Schilling, Klaus Butterbach-Bahl, Rainer Gasche, Jincheng Han, Lorenz Hartl, Julia Kepp, Amanda Matson, Ulrike Ostler, Clemens Scheer, Katrin Schneider, Arne Tenspolde, Reinhard Well, Benjamin Wolf, Nicole Wrage-Moennig, Michael Dannenmann   +15 more
openaire   +3 more sources

A Cytosine‑Bulged (3+1) Hybrid G‑Quadruplex Formed by the Chicken DNA Replication Origin

Chemistry – A European Journal, EarlyView.
The first high‐resolution structure of an OGRE‐derived G‐quadruplex from the chicken β‐globin replication origin reveals an intramolecular three‐layer (3+1) hybrid fold with a cytosine bulge and an unprecedented 5'‐outer‐quartet anti guanine, creating a distinctive surface for molecular recognition.
Yingying You, Monica Ching Suen, Haitao Miao, Yanyan Geng, Rahman Ud Din, Mu Yuan, Qiang Xue, Xiaoting Li, Naining Xu, Zhihong Guo, Hon‐Ming Lam, Kwok‐Wai Lo, Changdong Liu, Guang Zhu   +13 more
wiley   +1 more source