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Side 1 fra 66 resultater
Analysis of the Metabolic Pathways Affected by Poly(γ-glutamic Acid) in Arabidopsis thaliana Based on GeneChip Microarray.
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Plant growth is promoted by poly(γ-glutamic acid) (γ-PGA). However, the molecular mechanism underlying such promotion is not yet well understood. Therefore, we used GeneChip microarrays to explore the effects of γ-PGA on gene transcription in Arabidopsis thaliana. Our results revealed 299 genes
Identification and functional analysis of the HvD14 gene involved in strigolactone signaling in Hordeum vulgare.
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In this study, the barley HvD14 gene encoding α/β hydrolase, which is involved in strigolactone (SL) signaling, was identified. Bioinformatics analysis revealed that the identified gene is an orthologue of the D14, AtD14 and PhDAD2 genes that have been described in rice, Arabidopsis thaliana and
In situ study of metabolic response of Arabidopsis thaliana leaves to salt stress by neutral desorption-extractive electrospray ionization mass spectrometry.
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Abstract：Salt stress is one of the most common factors limiting plant cultivation. In this study, metabolic responses to salt stress in Arabidopsis thaliana (A. thaliana) leaves were analyzed in situ by neutral desorption-extractive electrospray ionization mass spectrometry (ND-EESI-MS) without any
Phosphothreonine 218 is required for the function of SR45.1 in regulating flower petal development in Arabidopsis.
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RNA splicing is crucial to the production of mature mRNAs (mRNA). In Arabidopsis thaliana, the protein Arginine/Serine-rich 45 (SR45) acts as an RNA splicing activator and initiates the spliceosome assembly. SR45 is alternatively spliced into 2 isoforms. Isoform 1 (SR45.1) plays an important role in
Proteomic and transcriptomic analysis of Arabidopsis seeds: molecular evidence for successive processing of seed proteins and its implication in the stress response to sulfur nutrition.
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Seed storage proteins are synthesized as sources of carbon, nitrogen and sulfur for the next generation of plants. Their composition changes according to nutritional conditions. Here, we report the precise molecular identification of seed proteins by proteomic analysis of wild-type Arabidopsis
Role of highly conserved residues in the reaction catalyzed by recombinant Delta7-sterol-C5(6)-desaturase studied by site-directed mutagenesis.
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The role of 15 residues in the reaction catalyzed by Arabidopsis thaliana Delta7-sterol-C5(6)-desaturase (5-DES) was investigated using site-directed mutagenesis and expression of the mutated enzymes in an erg3 yeast strain defective in 5-DES. The mutated desaturases were assayed in vivo by sterol
An Arabidopsis protein with a novel calcium-binding repeat sequence interacts with TONSOKU/MGOUN3/BRUSHY1 involved in meristem maintenance.
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TONSOKU(TSK)/MGOUN3/BRUSHY1 from Arabidopsis thaliana, which plays an important role in the maintenance of meristem organization, contains an LGN repeat motif similar to that found in animal proteins involved in asymmetric cell division. One protein that interacts with the LGN motif of TSK in a
Endo-beta-mannosidase, a plant enzyme acting on N-glycan: purification, molecular cloning, and characterization.
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Endo-beta-mannosidase is a novel endoglycosidase that hydrolyzes the Manbeta1-4GlcNAc linkage in the trimannosyl core structure of N-glycans. This enzyme was partially purified and characterized in a previous report (Sasaki, A., Yamagishi, M., Mega, T., Norioka, S., Natsuka, S., and Hase, S. (1999)
[Effect of the ABRUPTUS/PINOID gene on expression of the LEAFY gene in Arabidopsis thaliana].
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The nucleotide sequence was analyzed for the temperature-sensitive allele abruptus (abr), which distorts polar auxin transport (PAT) in the floral shoot. The mutation C-->T was found in the second exon and led to an amino acid substitution (glycin-->glutamic acid) in the conserved domain of protein
Steady-state kinetics and molecular evolution of Escherichia coli MenD [(1R,6R)-2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase], an anomalous thiamin diphosphate-dependent decarboxylase-carboligase.
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(1R,6R)-2-Succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate (SHCHC) synthase, or MenD, catalyzes the thiamin diphosphate- (ThDP-) dependent decarboxylation of 2-oxoglutarate, the subsequent addition of the resulting succinyl-ThDP moiety to isochorismate, and the delta-elimination of pyruvate to
Plant Vacuolar ATP-binding Cassette Transporters That Translocate Folates and Antifolates in Vitro and Contribute to Antifolate Tolerance in Vivo.
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The vacuoles of pea (Pisum sativum) leaves and red beet (Beta vulgaris) storage root are major sites for the intracellular compartmentation of folates. In the light of these findings and preliminary experiments indicating that some plant multidrug resistance-associated protein (MRP) subfamily
Multiple mechanism confers natural tolerance of three lilyturf species to glyphosate.
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CONCLUSIONS
A combination of unique EPSPS structure and increased gene copy number and expression contribute to natural glyphosate tolerance in three lilyturf species. A few plants are naturally tolerant to glyphosate, the most widely used non-selective herbicide worldwide. Here, the basis for
A maize spermine synthase 1 PEST sequence fused to the GUS reporter protein facilitates proteolytic degradation.
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Polyamines are low molecular weight aliphatic compounds involved in various biochemical, cellular and physiological processes in all organisms. In plants, genes involved in polyamine biosynthesis and catabolism are regulated at transcriptional, translational, and posttranslational level. In this
Cloning of CTP:phosphocholine cytidylyltransferase cDNA from Arabidopsis thaliana.
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As one of the first steps to elucidate the relationship between the structure and function of CTP:phosphocholine cytidylytransferase (EC 2.7.7.15) in plants, the cytidylyltransferase cDNA of Arabidopsis thaliana was cloned and characterized. The A. thaliana cytidylyltransferase cDNA is 1447 bp long
Biochemical properties of the autophosphorylation of RLK5, a receptor-like protein kinase from Arabidopsis thaliana.
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The RLK5 gene of Arabidopsis thaliana encodes a novel receptor-like protein kinase. DNA sequence analysis suggests that the RLK5 protein contains an extracellular domain that has 21 tandemly repeated leucine-rich motifs linked, via a transmembrane hydrophobic region, to a protein kinase catalytic
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