Results 51 to 60 of about 225,493 (345)
Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2022 Adding biochar to soil can alter soil properties and thus affect plant growth; however, the effect of biochar on biological nitrogen fixation, carbon accumulation and water-use efficiency of chickpea in tropical soils is not fully understood.
S. G. Lusiba +3 more
doaj +1 more source
Bedrock Nitrogen Weathering Stimulates Biological Nitrogen Fixation [PDF]
The Bulletin of the Ecological Society of America, 2019 AbstractGlobal ecosystem models suggest that bedrock nitrogen (N) weathering contributes 10–20% of total N inputs to the natural terrestrial biosphere and >38% of ecosystem N supplies in temperate forests specifically. Yet, the role of rock N weathering in shaping ecological processes and biogeochemical fluxes is largely unknown.
Katherine A. Dynarski +3 more
openaire +2 more sources
Functional modules, structural topology, and optimal activity in metabolic networks. [PDF]
PLoS Computational Biology, 2012 Modular organization in biological networks has been suggested as a natural mechanism by which a cell coordinates its metabolic strategies for evolving and responding to environmental perturbations.
Osbaldo Resendis-Antonio +3 more
doaj +1 more source
Human alteration of the global nitrogen and phosphorus soil balances for the period 1970-2050 [PDF]
, 2009 The Millennium Ecosystem Assessment scenarios for 2000 to 2050 describe contrasting future developments in agricultural land use under changing climate. Differences are related to the total crop and livestock production and the efficiency of nutrient use
Beusen, A.H.W. +2 more
core +2 more sources
ATF4‐mediated stress response as a therapeutic vulnerability in chordoma
Molecular Oncology, EarlyView.We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone +11 more
wiley +1 more source
Regulation of Biological Nitrogen Fixation [PDF]
The Journal of Nutrition, 2000 Biological nitrogen fixation, a process found only in some prokaryotes, is catalyzed by the nitrogenase enzyme complex. Bacteria containing nitrogenase occupy an indispensable ecological niche, supplying fixed nitrogen to the global nitrogen cycle. Due to this inceptive role in the nitrogen cycle, diazotrophs are present in virtually all ecosystems ...
C M, Halbleib, P W, Ludden
openaire +2 more sources
Soil P Status and Nitrogen Fixation on Organic Dairy Farms in Ontario and Nova Scotia [PDF]
, 2010 Legumes are a key source of nitrogen (N) in organic production systems. However, there is evidence that reduced inputs may be leading to deficient soil phosphorus (P) on some organic dairy farms (Roberts et. al. 2008).
Juurlink, Shelly +5 more
core
Modeling pN2 through Geological Time: Implications for Planetary Climates and Atmospheric Biosignatures [PDF]
, 2016 Nitrogen is a major nutrient for all life on Earth and could plausibly play a similar role in extraterrestrial biospheres. The major reservoir of nitrogen at Earth's surface is atmospheric N2, but recent studies have proposed that the size of this ...
Buick, R. +5 more
core +2 more sources
Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity
Molecular Oncology, EarlyView.Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung +17 more
wiley +1 more source
Genome wide identification and characterization of nodulation related genes in Arachis hypogaea.
PLoS ONE, 2022 Nitrogen is an important plant nutrient that has a significant role in crop yield. Hence, to fulfill the needs of sustainable agriculture, it is necessary to improve biological nitrogen fixation in leguminous crops.
Kiran Khurshid +8 more
doaj +3 more sources