Results 61 to 70 of about 478 (121)

Metabolic Responses to Excess Manganese in Legumes: Variations in Nitrogen Compounds in Canavalia ensiformis (L.) DC and Cajanus cajan (L.) Millsp

open access: yesLegume Science
Manganese (Mn) is crucial as a trace element for plant metabolism, but high concentrations in soil can induce symptoms of toxicity. This study aimed to evaluate the metabolism of nitrogen compounds and biomass production in Canavalia ensiformis and ...
Thalita Fischer Santini Mendes   +4 more
doaj   +1 more source

Short Term Effect of Caffeine on Purine, Pyrimidine and Pyridine Metabolism in Rice () Seedlings

open access: yesNatural Product Communications, 2015
As part of our studies on the physiological and ecological function of caffeine, we investigated the effect of exogenously supplied caffeine on purine, pyrimidine and pyridine metabolism in rice seedlings.
Wei-Wei Deng   +2 more
doaj   +1 more source

Biochemical and Molecular Characterization of PvNTD2, a Nucleotidase Highly Expressed in Nodules from Phaseolus vulgaris

open access: yesPlants, 2020
Nucleotides are molecules of great importance in plant physiology. In addition to being elementary units of the genetic material, nucleotides are involved in bio-energetic processes, play a role as cofactors, and are also components of secondary ...
Gregorio Galvez-Valdivieso   +6 more
doaj   +1 more source

Drought Stress Modifies the Source‐Sink Dynamics of Nitrogen‐Fixing Soybean Plants Prioritizing Roots and Nodules

open access: yesPhysiologia Plantarum, Volume 177, Issue 3, May/June 2025.
ABSTRACT Soybean plants are one of the most cultivated legume crops worldwide. Their ability to establish nitrogen‐fixing symbiosis with rhizobium bacteria allows the reduction of molecular nitrogen to ammonium, contributing to a reduction in the dependence on nitrogen fertilizers.
María Isabel Rubia   +2 more
wiley   +1 more source

NifA-Dependent Expression of Glutamate Dehydrogenase in Rhizobium etli Modifies Nitrogen Partitioning During Symbiosis

open access: yesMolecular Plant-Microbe Interactions, 1998
Constitutive expression of foreign glutamate dehydrogenase in Rhizobium etli inhibits bean plant nodulation (A. Mendoza, A. Leija, E. Martínez-Romero, G. Hernández, and J. Mora. Mol. Plant-Microbe Interact. 8:584-592, 1995).
Alberto Mendoza   +3 more
doaj   +1 more source

Relationships between soil health tests and relative abundances of N‐metabolism genes in no‐till, plowed, and undisturbed reference soils

open access: yesSoil Science Society of America Journal, Volume 89, Issue 2, March/April 2025.
Abstract Farmers are increasingly recognizing the importance of building healthy soils to enhance farm resilience and profitability. Advances in metagenomic DNA sequencing of soil microbial communities offer opportunities to explore relationships between genes linked to key soil functions and established soil health metrics.
Mara Cloutier, Mary Ann Bruns
wiley   +1 more source

Ureide accumulation in faba bean (Vicia faba, L.) [PDF]

open access: yes, 2014
Faba bean (Vicia faba L.) is a cool season crop that uses symbiotic biological nitrogen fixation to obtain atmospheric nitrogen (N), a limiting macronutrient, for growth and maintenance of the plant.
Welder, Denise
core  

Facile selective synthesis of 2-methyl-5-amino-1,2,4-oxadiazolium bromides as further targets for nucleophilic additions

open access: yes, 2018
The reaction of aminonitrones with isocyanides and Br2 gives 2-methyl-5-amino-1,2,4-oxadiazolium bromides, which are convenient precursors for other heterocycles and ureides.
Dmitrii S. Bolotin   +3 more
core   +1 more source

Does elevated atmospheric [CO2] alter diurnal C uptake and the balance of C and N metabolites in growing and fully expanded soybean leaves? [PDF]

open access: yes, 2006
Increases in growth at elevated [CO2] may be constrained by a plant's ability to assimilate the nutrients needed for new tissue in sufficient quantity to match the increase in carbon fixation and/or the ability to transport those nutrients and carbon in ...
Ainsworth, E. A.   +9 more
core   +1 more source

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