Results 81 to 90 of about 7,506,338 (209)

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  

The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity

open access: yesFEBS Open Bio, EarlyView.
Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav   +4 more
wiley   +1 more source

Dynamic Optimization of Nitrogen Use in Agriculture [PDF]

open access: yes
Agricultural production is highly dependent on inorganic substances including fertilizers. High-yielding crop varieties, such as corn, require large amounts of primary nutrients including nitrogen, phosphorus and potassium. Farmers often add a surplus of
Burnett, J. Wesley   +1 more
core  

MARK4 enhances stress granule formation under oxidative stress and increases tau accumulation

open access: yesFEBS Open Bio, EarlyView.
MARK4 (red dots) localizes to stress granules (orange dots) and promotes their formation under oxidative stress by modulating TIA1 (blue dots). MARK4 and TIA1 synergistically increase tau (purple) accumulation, and the reduction of the TIA1 ortholog suppresses neurodegeneration in a fly model.
Sho Nakajima   +8 more
wiley   +1 more source

Modelling Waikato Farm Nitrogen Discharges for Policy Analysis [PDF]

open access: yes
This study describes the development of bio economic models examining the economic and water quality impact of various proposed policy options in the Upper Waikato catchment. In the first phase nitrogen emissions are determined for representative farming
Scrimgeour, Frank G.   +1 more
core  

TRPML1 agonist ML‐SA5 attenuates pulmonary fibroblast activation by suppressing mTOR and restoring autophagic flux

open access: yesFEBS Open Bio, EarlyView.
TGF‐β1 stimulation downregulates lysosomal channel TRPML1 in pulmonary fibroblasts. The TRPML1 agonist ML‐SA5 suppressed fibroblast‐to‐myofibroblast activation and collagen production. Mechanistically, ML‐SA5 inhibited mTOR phosphorylation, restored autophagic flux, and its effects were enhanced by rapamycin (mTOR inhibitor) and reversed by MHY1485 ...
Jiatong Yao   +10 more
wiley   +1 more source

Effect of the change of nitrogen source on photosynthesis and respiration of Scots pine (Pinus silvestris L.) seedlings

open access: yesActa Societatis Botanicorum Poloniae, 2015
Rates of photosynthesis and respiration of Scots pine seedlings, grown in water culture under conditions of nitrogen deficiency and supplied with nitrogen in ammonium or nitrate form, were investigated.
J. Zajączkowska
doaj   +1 more source

Nitrogen-obtaining and -conserving strategies in xylotrophic basidiomycetes

open access: yes, 2020
Nitrogen in sufficient quantities is strictly necessary for all living organisms. In this study, the ability of some xylotrophic basidiomycetes to grow extremely long on a solid growth medium full of carbon nutrition but lacking a nitrogen source in its ...
Lev Pozdnyakov (8658798)   +7 more
core   +1 more source

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

open access: yesFEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi   +6 more
wiley   +1 more source

RESPONSE OF JAPANESE BUNCHING ONION (Allium fistulosum L.) TO NITROGEN FERTILIZATION

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2013
New pseudostem cultivars of Japanese bunching onion may be a good alternative to common bulb onion grown for bunches in early spring season. There is still limited knowledge upon the requirement of this vegetable species for nitrogen fertilization.
Eugeniusz Kołota   +2 more
doaj  

Home - About - Disclaimer - Privacy