Results 41 to 50 of about 2,577,255 (258)

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Fate of applied urea 15N in a soil-maize system as affected by urease inhibitor and nitrification inhibitor

Plant, Soil and Environment, 2010
A micro-plot field experiment with reduced urea 15N application was conducted to study the effects of urease inhibitor NBPT (N-(n-butyl) thiophosphoric triamide) and nitrification inhibitor DMPP(3,4-dimethyl-1H-pyrazolium dihydrogen) on the fate of ...
L. Zhang, Z. Wu, Y. Jiang, L. Chen, Y. Song, L. Wang, J. Xie, X. Ma   +7 more
doaj   +1 more source

Variations in the predicted spatial distribution of atmospheric nitrogen deposition and their impact on carbon uptake by terrestrial ecosystems [PDF]

, 1997
Widespread mobilization of nitrogen into the atmosphere from industry, agriculture, and biomass burning and its subsequent deposition have the potential to alleviate nitrogen limitation of productivity in terrestrial ecosystems, and may contribute to ...
Brasseur, Guy, Braswell, Rob, Dentener, Frank, Holland, Elisabeth A, Lamarque, Jean-Francois, Levy, H, II, Muller, Jean-Francois, Penner, Joyce E, Roelofs, Geert-Jan, Sulzman, James, Townsend, Alan R   +10 more
core   +2 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Nitrogen cycling, forest canopy reflectance, and emergent properties of ecosystems [PDF]

, 2013
In Ollinger et al. (1), we reported that mass-based concentrations of nitrogen in forest canopies (%N) are positively associated with whole-canopy photosynthetic capacity and canopy shortwave albedo in temperate and boreal forests, the latter result ...
Frolking, Steve, Hollinger, David Y, Lepine, Lucie, Ollinger, Scott V., Reich, Peter B, Richardson, Andrew D.   +5 more
core   +2 more sources

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Optimization of Irrigation Amount and Nitrogen Rate of Drip-Fertigated Sugar Beet Based on Sugar Yield, Nitrogen Use Efficiency, and Critical Nitrogen Dilution Curve in the Arid Southern Xinjiang of China

Plants
The critical nitrogen (N) dilution curve is widely used to diagnose crop N status, but no such model has been developed for sugar beet. This study evaluated the effects of irrigation amount and N rate on sugar yield, N use efficiency, and soil nitrate-N (
Ying Wang, Fulai Yan, Junliang Fan, Fucang Zhang   +3 more
doaj   +1 more source

Fate of nitrogen in subsurface infiltration system for treating secondary effluent

Water Science and Engineering, 2017
The concentration of total nitrogen (TN) is reported to vary between 20 and 35 mg/L in domestic wastewater. In raw wastewater, ammonia nitrogen (NH4+-N) is the main nitrogen form, accounting for 70%–82% of the TN concentration.
Ying-hua Li, Hai-bo Li, Xin-yang Xu, Si-yao Xiao, Si-qi Wang, Shu-cong Xu   +5 more
doaj   +1 more source

Nitrogen migration and transformation in solid and aqueous products derived from hydrothermal conversion of fiberboard

Meitan xuebao, 2023
The high content of nitrogen in the waste wood-based panels will result in NOx pollution during their thermochemical conversions. This study focused on the nitrogen migration and transformation in the solid and aqueous products during hydrothermal ...
Jinchuan WANG, Deliang XU, Juntao WEI, Bin LI, Shu ZHANG, Yong HUANG, Hong ZHANG   +6 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source