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gibberellin a 32/arroz
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Hydrolysis of Conjugated Gibberellins by β-Glucosidases from Dwarf Rice (Oryza sativa L. cv. «Tan-ginbozu»).
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Dwarf rice (Oryza sativa L. cv. «Tan-ginbozu») is widely used for gibberellin conjugate bioassay. Soluble and particulate fractions from seeds and seedlings of this variety showed hydrolytic activity toward [(3)H]GA-O-Glc. The soluble fraction from mature seeds exhibited the highest
Cloning of a cDNA encoding an ETR2-like protein (Os-ERL1) from deep water rice (Oryza sativa L.) and increase in its mRNA level by submergence, ethylene, and gibberellin treatments.
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A cDNA from deep water rice treated with ethylene, encoding an ethylene receptor homologous to Arabidopsis thaliana ETR2 and EIN4, was isolated using differential display and RACE techniques. The cDNA (2880 bp), corresponding to the Os-ERL1 gene (Oryza sativa ETHYLENE RESPONSE 2 like 1; GenBank
Metabolism and Biological Activity of Gibberellin A4 in Vegetative Shoots of Zea mays, Oryza sativa, and Arabidopsis thaliana.
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[17-13C,3H]Gibberellin A4 (GA4) was injected into the shoots of tall (W23/L317), dwarf-1 (d1), and dwarf-5 (d5) Zea mays L. (maize); tall (cv Nipponbare), dwarf-x (dx), and dwarf-y (dy) Oryza sativa L. (rice); and tall (ecotype Landsberg erecta), ga4, and ga5 Arabidopsis thaliana (L.) Heynh.
Exploring the response of rice (Oryza sativa) leaf to gibberellins: a proteomic strategy.
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BACKGROUND
Gibberellins (GAs) are plant-specific hormones that play a central role in the regulation of growth and development with respect to environmental variability. Plants respond to GAs signal through various biochemical and physiological processes. To better understand the response for GA
Isolation and characterization of a Ds-tagged rice (Oryza sativa L.) GA-responsive dwarf mutant defective in an early step of the gibberellin biosynthesis pathway.
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We have isolated a severe dwarf transposon (Ds) insertion mutant in rice (Oryza sativa L.), which could be differentiated early in the seedling stage by reduced shoot growth and dark green leaves, and later by severe dwarfism and failure to initiate flowering. These mutants, however, showed normal
OsLOL1, a C2C2-type zinc finger protein, interacts with OsbZIP58 to promote seed germination through the modulation of gibberellin biosynthesis in Oryza sativa.
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Seed germination is a key developmental process in the plant life cycle that is influenced by various environmental cues and phytohormones through gene expression and a series of metabolism pathways. In the present study, we investigated a C2C2-type finger protein, OsLOL1, which promotes gibberellin
The Metabolism of Gibberellin A20 to Gibberellin A1 by Tall and Dwarf Mutants of Oryza sativa and Arabidopsis thaliana.
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The purpose of this study was to demonstrate the metabolism of gibberellin A20 (GA20) to gibberellin A1 (GA1) by tall and mutant shoots of rice (Oryza sativa L.) and Arabidopsis thaliana (L.) Heynh. The data show that the tall and dx mutant of rice and the tall and ga5 mutant of Arabidopsis
Rice black streaked dwarf virus P7-2 forms a SCF complex through binding to Oryza sativa SKP1-like proteins, and interacts with GID2 involved in the gibberellin pathway.
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As a core subunit of the SCF complex that promotes protein degradation through the 26S proteasome, S-phase kinase-associated protein 1 (SKP1) plays important roles in multiple cellular processes in eukaryotes, including gibberellin (GA), jasmonate, ethylene, auxin and light responses. P7-2 encoded
Seed-borne endophytic Bacillus amyloliquefaciens RWL-1 produces gibberellins and regulates endogenous phytohormones of Oryza sativa.
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Some microorganisms are adapted to an endophytic mode, living symbiotically with plants through vertical transmission in seeds. The role of plant growth-promoting endophytes has been well studied, but those of seed-associated endophytic bacteria are less understood. The current study aimed to
An A20/AN1-type zinc finger protein modulates gibberellins and abscisic acid contents and increases sensitivity to abiotic stress in rice (Oryza sativa).
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The plant hormones gibberellins (GA) and abscisic acid (ABA) play important roles in plant development and stress responses. Here we report a novel A20/AN1-type zinc finger protein ZFP185 involved in GA and ABA signaling in the regulation of growth and stress response. ZFP185 was constitutively
Characterization of proteins responsive to gibberellin in the leaf-sheath of rice (Oryza sativa L.) seedling using proteome analysis.
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In plants gibberellins (GAs) are responsible for triggering stem or internodal elongation. To comprehend the molecular basis of internodal elongation in rice, a proteomics approach using differentially displayed proteins on two-dimensional polyacrylamide gel electrophoresis (2-D PAGE) was carried
Semi Quantification of Gibberellins in the Anthers of Thermosensitive Genetic Male Sterile Rice (Oryza sativa L. cv. PL12).
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The levels of endogenous GAs in the anthers of rice (Oryza sativa L., cv. Reimei (normal)) and in those of sterile and fertile plants of a thermosensitive genetic male sterile line (Norin PL12; derived from Reimei) were measured by enzyme-linked immunosorbent assay (ELISA). High levels of GA4/7 were
Effects of Ethylene and Gibberellins on the Elongation of Rice Seedlings (Oryza sativa L.).
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Three-day-old rice seedlings treated with ethylene showed elongation of the 2nd and 3rd leaves. This ethylene-stimulated elongation was not observed in the presence of uniconazole-P or prohexadione, both gibberellin (GA) biosynthesis inhibitors, suggesting that GA was involved in the response. An
Strigolactones regulate shoot elongation by mediating gibberellin metabolism and signaling in rice (Oryza sativa L.).
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Strigolactones (SLs) are plant hormones that regulate diverse physiological processes including shoot elongation. However, little is known about the regulatory mechanism of SLs in rice shoot elongation. Our results demonstrate that defects in SL biosynthesis or signaling led to dwarfism, and the
Rare sugar D-allose suppresses gibberellin signaling through hexokinase-dependent pathway in Oryza sativa L.
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One of the rare sugars, D-allose, which is the epimer of D-glucose at C3, has an inhibitory effect on rice growth, but the molecular mechanisms of the growth inhibition by D-allose were unknown. The growth inhibition caused by D-allose was prevented by treatment with hexokinase inhibitors,
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