Search results for "Arginine decarboxylase"

showing 4 items of 4 documents

Polyamine metabolism during seedling development in rice

1994

The main free amines identified during growth and development of rice seedlings were agmatine, putrescine, spermidine, diaminopropane and tyramine. Amine composition differed according to tissue and stages of development. Conjugated amines were only found in roots. We present evidence that arginine decarboxylase (ADC) regulates putrescine during the development of rice seedlings. When ADC action was blocked by DFMA (α-DL-difluoromethylarginine, a specific irreversible inhibitor of ADC), polyamine titers and seedling development were diminished; when agmatine or putrescine was added, normal polyamine titers and growth were restored. The effects of DFMA were concentration dependent. DFMO (α-D…

0106 biological sciences[SDE] Environmental SciencesPhysiology[SDV]Life Sciences [q-bio]Plant ScienceBiology01 natural sciencesOrnithine decarboxylase03 medical and health scienceschemistry.chemical_compoundComputingMilieux_MISCELLANEOUS030304 developmental biology0303 health sciencesTyramineSpermidine[SDV] Life Sciences [q-bio]chemistryBiochemistry[SDE]Environmental SciencesPutrescineDFMAAgmatinePolyamineArginine decarboxylaseAgronomy and Crop ScienceRIZ010606 plant biology & botany
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Polyamines and related enzymes in rice seeds differing in germination potential

1994

In ungerminated rice seeds, (Japonica rice variety, CV Tapei 309), the content of free amines (putrescine, spermidine, spermine, tyramine) was higher in seed lots having a low germination frequency compared to those with high germination potential. Conversely, amine conjugates (di-feruloylputrescine, di-feruloylspermidine, diferuloyldiaminopropane and feruloyltyramine) decreased with loss of viability. Thus, these compounds appeared to constitute biochemical markers of seed viability. In seeds with high germination potential, conjugates decreased drastically during germination, with an early and rapid increase in free amines (putrescine, spermidine, tyramine). Arginine decarboxylase (ADC) a…

0106 biological sciences[SDE] Environmental SciencesPhysiology[SDV]Life Sciences [q-bio]SperminePlant Science01 natural sciencesOrnithine decarboxylase03 medical and health scienceschemistry.chemical_compoundComputingMilieux_MISCELLANEOUS030304 developmental biology0303 health sciencesbiologyfood and beveragesSpermidine[SDV] Life Sciences [q-bio]chemistryBiochemistryGermination[SDE]Environmental SciencesPutrescinebiology.proteinSpermidine synthasePolyamineArginine decarboxylaseAgronomy and Crop ScienceRIZ010606 plant biology & botany
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Integration of polyamins in the cold acclimation response

2011

8 páginas, 1 figura, 3 tablas -- PAGS nros. 31-38

AcclimatizationPlant geneticsArabidopsisCold acclimationPlant ScienceBiologyModels BiologicalTranscriptomechemistry.chemical_compoundAbscisic acidMetabolomicsGene Expression Regulation PlantBotanyGeneticsCold acclimationPolyaminesAbscisic acidRegulation of gene expressionEcologyPlant physiologyGeneral MedicineCold TemperatureArginine decarboxylasechemistryAdaptationAgronomy and Crop Science
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Putrescine as a signal to modulate the indispensable ABA increase under cold stress.

2009

2 páginas -- PAGS nros. 219-220

DNA BacterialAcclimatizationMutantArabidopsisCold acclimationPlant ScienceBiologyGenes Plantchemistry.chemical_compoundGene Expression Regulation PlantpolyamineFreezingCold acclimationputrescineMode of actionAnalysis of VarianceArabidopsis ProteinsReverse Transcriptase Polymerase Chain ReactionGene Expression ProfilingfungiWild typefood and beveragesfreezing toleranceArticle AddendumComplementationCold TemperatureMutagenesis InsertionalArginine decarboxylasechemistryBiochemistryABARNA PlantMutationPutrescinegene expressionPolyamineArginine decarboxylaseAbscisic AcidResearch ArticlePlant signalingbehavior
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