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Pàgina 1 des de 194 resultats
Exogenous proline induces regulation in 2-acetyl-1-pyrroline (2-AP) biosynthesis and quality characters in fragrant rice (Oryza sativa L.)
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Proline is one of the precursors of the biosynthesis of 2-acetyl-1-pyrroline (2-AP) which is the key and characteristic volatile component of fragrant rice aroma. In order to study the effects of exogenous proline on 2-AP biosynthesis and other grain quality attributes in fragrant rice, two indica
Map-based cloning and validation of a gall midge resistance gene, Gm8, encoding a proline-rich protein in the rice variety Aganni.
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The Asian rice gall midge (ARGM), Orseolia oryzae is an important insect pest causing an annual yield loss of about US$ 80 million in India. Till now 11 R genes and seven biotypes of the pest have been characterized and reported. The indica rice variety Aganni, a landrace from the state of Kerala,
CPPU elevates photosynthetic abilities, growth performances and yield traits in salt stressed rice (Oryza sativa L. spp. indica) via free proline and sugar accumulation.
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Application of N-2-(chloro-4-pyridyl)-N-phenyl urea (CPPU) to salt susceptible cultivar of indica rice (cv. PTT1) effected on free proline and soluble sugar accumulation and regulated the physio-morphological responses when subjected to salt stress condition was firstly demonstrated in this study.
OsProT1 and OsProT3 Function to Mediate Proline- and γ-aminobutyric acid-specific Transport in Yeast and are Differentially Expressed in Rice (Oryza sativa L.).
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Divergence in spatial expression patterns and in response to stimuli of tandem-repeat paralogues encoding a novel class of proline-rich proteins in Oryza sativa.
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Gene duplication has been recognized as a major route to supply raw sequences for genome novelty in evolution, but the mechanism underlying the retention of duplicate genes is not fully understood yet. Divergence in spatial expression patterns was investigated here and in response to stimuli of the
Knockout of OsPRP1, a gene encoding proline-rich protein, confers enhanced cold sensitivity in rice (Oryza sativa L.) at the seedling stage.
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Proline-rich proteins (PRPs) play multiple physiological and biochemical roles in plant growth and stress response. In this study, we reported that the knockout of OsPRP1 induced cold sensitivity in rice. Mutant plants were generated by CRISPR/Cas9 technology to investigate the role of
OsProDH Negatively Regulates Thermotolerance in Rice by Modulating Proline Metabolism and Reactive Oxygen Species Scavenging
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Background: Global warming threatens rice growth and reduces yields. Proline plays important roles in plant abiotic stress tolerance. Previous research demonstrated that engineering proline metabolism-related genes can enhance tolerance
Proline suppresses Rubisco activity in higher plants.
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Seedlings of Brassica juncea, Sesbania sesban, and Oryza sativa exposed to salt stress accumulated proline to levels as high as 4- to 20-fold over those of controls. Because chloroplasts are the major site for synthesis of stress induced proline accumulation, in vitro studies were conducted to see
Abscisic acid- and stress-induced highly proline-rich glycoproteins regulate root growth in rice.
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In the root of rice (Oryza sativa), abscisic acid (ABA) treatment, salinity, or water deficit stress induces the expression of a family of four genes, REPETITIVE PROLINE-RICH PROTEIN (RePRP). These genes encode two subclasses of novel proline-rich glycoproteins with highly repetitive PX₁PX₂ motifs,
Role of media constituents and proline in callus growth, somatic embryogenesis and regeneration of Oryza sativa cv Indica.
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Conditions were optimised for efficient callus induction from seeds of four local indica rice cultivars, GR-3, GR-102, Jaya and Te-Tep. Addition of 2,4-D to MS medium at 2.5 mg/l resulted in 100% callus induction. N6 medium was superior to MS medium for callus growth, formation of embryogenic callus
Analysis of proline metabolic enzymes in Oryza sativa under NaCl stress.
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The regulation of proline accumulation in seedlings of rice (Oryza sativa L. cv. Badami) was investigated. The increasing concentration of NaCl from 0.5 to 2.5% progressively increased the proline content in rice. Proline accumulation caused by NaCl was related to protein proteolysis, an increase in
Free proline contents in two different groups of rice mutants resistant to hydroxy-L-proline.
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In four rice (Oryza sativa L.) mutants resistant to hydroxy-L-proline (Hyp), HYP101, HYP203, HYP205 and HYP210, and in their original variety, Nipponbare, free proline and Hyp contents in the seeds and in the 14-day-old seedlings have been determined. The four mutants can be divided into two groups:
Glycine- and Proline-Rich Protein OsGPRP3 Regulates Grain Size and Quality in Rice
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The grain size and shape of rice are limited by the growth of the spikelet hulls and are important selective target during domestication and breeding. In this study, we identified a glycine- and proline-rich protein (OsGPRP3), which belongs to a conserved family rarely studied. We found that
Suppression in mitochondrial electron transport is the prime cause behind stress induced proline accumulation.
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Exposure of six day old rice (Oryza sativa) seedlings to salt or cadmium stress lead to an increase in the level of proline with a simultaneous decline in the mitochondrial electron transport activity. Mitochondrial electron transport inhibitors - rotenone, antimycin A or potassium cyanide also
Molecular cloning and characterization of a cDNA encoding proline transporter in rice.
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A cDNA encoding a proline (Pro) transporter (ProT) was isolated and characterized from a cDNA library prepared from 14-d-old seedlings of Oryza sativa cv. Akibare. The deduced amino acid sequence of the rice ProT protein (OsProT) had 68.8% homology to the ProT protein 1 from Arabidopsis thaliana and
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