Results 111 to 120 of about 124,422 (325)

Subsurface tropical Pacific nitrogen isotopic composition of nitrate: Biogeochemical signals and their transport [PDF]

open access: yes, 2011
We report measurements of the nitrogen isotopic composition of nitrate (the δ15N of NO3−) across the equatorial Pacific, for zonal transects from 165°E to 95°W and meridional transects across 95° and 110°W.
Charles, Christopher D.   +4 more
core   +1 more source

A Tac1‐Expressing Brainstem Pathway Underlies the Pathogenesis of Trigeminal Neuralgia

open access: yesAdvanced Science, EarlyView.
A critical TG‐Sp5CTac1‐PBNTac1 pathway drives trigeminal neuropathic pain (TNP). Tac1‐expressing parabrachial nucleus (PBNTac1) neurons exhibit heightened responses to innocuous stimuli in TNP, and chemogenetic inhibition of these neurons effectively prevents TNP development.
Liting Sun   +11 more
wiley   +1 more source

Single‐Cell Transcriptomics Reveals FLS2‐Dependent Hypoxia Signaling and ERF13‐Mediated Transcription During flg22‐Triggered Immunity

open access: yesAdvanced Science, EarlyView.
This study employs sc‐RNA sequencing, genetics, and phenotyping to systematically map the cell‐type‐specific immune responses triggered by flg22. It reveals FLS2‐dependent transcriptional reprogramming in epidermal and mesophyll cells, and uncovers crosstalk between immune and hypoxia signaling pathways.
Yaping Zhou   +17 more
wiley   +1 more source

Nitrogenase (nifH) gene expression in diazotrophic cyanobacteria in the Tropical North Atlantic in response to nutrient amendments

open access: yesFrontiers in Microbiology, 2012
The Tropical North Atlantic (TNAtl) plays a critical role in the marine nitrogen cycle, as it supports high rates of biological nitrogen (N2) fixation, yet it is unclear whether this process is limited by the availability of iron (Fe), phosphate (P) or ...
Kendra A Turk-Kubo   +7 more
doaj   +1 more source

Nitrogen Fixation and Translocation in Sugarcane [PDF]

open access: yes, 2008
World sugarcane production is increasing rapidly as a biofuel. In some areas in Brazil, sugarcane has been grown continually over very long periods without N fertiliser inputs. Therefore, the occurrence of N fixation has been suspected.
Atsushi Momose   +6 more
core   +1 more source

Targeting the PDK1/c‐Myc/SOX10 Signaling in Oligodendrocytes Alleviates Neuropathic Pain

open access: yesAdvanced Science, EarlyView.
This work reveals that oligodendrocyte homeostasis, mediated by PDK1, is a critical determinant of neuropathic pain (NPP) pathogenesis. Disruption of PDK1 in oligodendrocytes impairs SOX10‐dependent myelination programs through c‐Myc accumulation, leading to disrupted myelination and the pathophysiology of NPP.
Pingping Qiao   +7 more
wiley   +1 more source

NITROGÊNIO E POTÁSSIO NA FIXAÇÃO SIMBIÓTICA DE N2 POR SOJA CULTIVADA NO INVERNO NITROGEN AND POTASSIUM IN THE BIOLOGICAL N2 FIXATION BY WINTER SOYBEAN

open access: yesScientia Agricola, 1999
O efeito do nitrogênio e do potássio sobre a nodulação, fixação simbiótica do nitrogênio, teor de N nos grãos e produtividade de soja, foi avaliado no inverno em experimentos conduzidos nas Estações Experimentais de Mococa, Ribeirão Preto e Votuporanga, do Instituto Agronômico de Campinas, SP, em solos podzólico vermelho-escuro, latossolo roxo e ...
Maria do Carmo de Salvo Soares Novo   +6 more
openaire   +2 more sources

Nitrogen, soils and environment [PDF]

open access: yes, 2010
The article discusses the risk of damaging the environment brought by nitrogen fertilisers which are used for increasing agricultural productivity. The oxidation of ammonium allows for the formation of nitrate. Troposphere ozone and aerosols are produced
Schipper, Louis A., Sparling, Graham P.
core   +1 more source

Heme‐NO Dilates Arteries via Mobilization of NO Moieties From an Intracellular NO Store Within Vascular Smooth Muscle Cells

open access: yesAdvanced Science, EarlyView.
Nitrosyl heme emerges as an extracellular nitrodilator that dilates arteries without crossing the cell membrane. Instead, heme‐NO mobilizes NO moieties from a preformed intracellular NO store within vascular smooth muscle, providing both functional and chemical evidence for the NANOS model, revealing a previously unrecognized mechanism of arterial ...
Taiming Liu   +9 more
wiley   +1 more source

Influência do Glyphosate sobre a nodulação e o crescimento de cultivares de soja resistente ao Glyphosate Glyphosate influence on growth and nodulation of Glyphosate resistant soybean cultivars

open access: yesPlanta Daninha, 2008
A soja resistente ao glyphosate (RR) é uma tecnologia que vem acrescentar mais uma ferramenta ao manejo de plantas daninhas para essa cultura, que possui a maior área plantada em nosso país.
R.S. Oliveira JR.   +6 more
doaj   +1 more source

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