Results 21 to 30 of about 3,652,527 (299)

Nitrogen Regulation of Root Branching [PDF]

open access: yesAnnals of Botany, 2005
Many plant species can modify their root architecture to enable them to forage for heterogeneously distributed nutrients in the soil. The foraging response normally involves increased proliferation of lateral roots within nutrient-rich soil patches, but much remains to be understood about the signalling mechanisms that enable roots to sense variations ...
Walch-Liu, Pia   +5 more
openaire   +2 more sources

Distinctive Features of PipX, a Unique Signaling Protein of Cyanobacteria

open access: yesLife, 2020
PipX is a unique cyanobacterial protein identified by its ability to bind to PII and NtcA, two key regulators involved in the integration of signals of the nitrogen/carbon and energy status, with a tremendous impact on nitrogen assimilation and gene ...
Jose I. Labella   +4 more
doaj   +1 more source

Novel Aspects of Regulation of Nitrogen Responses in the Tea Plant (Camellia sinensis (L.))

open access: yesAgronomy, 2023
Tea brewed from leaves of Camellia sinensis (L.) is one of the most popular worldwide non-alcoholic beverages, and nitrogen is an essential nutrient that affects the growth and development of the tea plant.
Xueying Xie   +3 more
doaj   +1 more source

Regulation of Biological Nitrogen Fixation [PDF]

open access: yesThe 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

A Glimpse at Regulation of Nitrogen Homeostasis [PDF]

open access: yesStructure, 2010
NrpR is a 2-oxoglutarate (2OG)-sensing transcription factor found in the archaeal phylum euryarchaetoa. When 2OG concentrations are low, NrpR transcriptionally represses expression of the nitrogen acquisition genes. Structural studies by Wisedchaisri et al. (2010) have identified the cleft region, where 2OG binds to NrpR.
Kaiser, B., Hrmova, M.
openaire   +3 more sources

Straw Incorporation Effects on Net Photosynthetic Carbon Assimilation and Maize Growth

open access: yesFrontiers in Agronomy, 2022
Returning straw into soil could increase soil organic carbon (SOC) and promote crop growth. However, little has been reported on the source of C for increased SOC (straw C or crop photosynthetic C). To investigate the assimilation of photosynthetic C and
Xin-Xin Wang   +8 more
doaj   +1 more source

The Signal Transduction Protein PII Controls Ammonium, Nitrate and Urea Uptake in Cyanobacteria

open access: yesFrontiers in Microbiology, 2019
PII signal transduction proteins are widely spread among all domains of life where they regulate a multitude of carbon and nitrogen metabolism related processes.
Björn Watzer   +8 more
doaj   +1 more source

Metabolism of Labeled Organic Nitrogen in Soil: Regulation by Inorganic Nitrogen [PDF]

open access: yesSoil Science Society of America Journal, 1989
Abstract Regulation of organic N metabolism by inorganic N availability was investigated in short‐term laboratory incubations of soil. A 14 C‐, 15 N‐labeled organic N substrate was produced by growing Pseudomonas ...
Rice, Charles W., author   +3 more
openaire   +3 more sources

Nitrogen regulation of protein–protein interactions and transcript levels of GlnK PII regulator and AmtB ammonium transporter homologs in Archaea [PDF]

open access: yes, 2013
Gene homologs of GlnK PII regulators and AmtB-type ammonium transporters are often paired on prokaryotic genomes, suggesting these proteins share an ancient functional relationship.
Soppa, Jörg   +6 more
core   +1 more source

Chromatin Regulators Ahc1p and Eaf3p Positively Influence Nitrogen Metabolism in Saccharomyces cerevisiae

open access: yesFrontiers in Microbiology, 2022
There is a complex regulatory network of nitrogen metabolism in Saccharomyces cerevisiae, and many details of this regulatory network have not been revealed. This study explored the global regulation of nitrogen metabolism in S.
Yu Chen   +15 more
doaj   +1 more source

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