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raffinose/oryza sativa
L'enllaç es desa al porta-retalls
Pàgina 1 des de 16 resultats
Characterization of raffinose synthase from rice (Oryza sativa L. var. Nipponbare).
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The putative raffinose synthase gene from rice was cloned and expressed in Escherichia coli. The enzyme displayed an optimum activity at 45 degrees C and pH 7.0, and a sulfhydryl group was required for its activity. The enzyme was specific for galactinol and p-nitrophenyl-alpha-D-galactoside as
The Mitochondrial Iron-Regulated (MIR) gene is Oryza genus specific and evolved before speciation within the Oryza sativa complex.
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The MIR gene is not an Oryza sativa orphan gene, but an Oryza genus-specific gene that evolved before AA lineage speciation by a complex origination process. Rice (Oryza sativa L.) is a model species and an economically relevant crop. The Oryza genus comprises 25 species, with genomic data available
Expression of rice (Oryza sativa L. var. Nipponbare) alpha-galactosidase genes in Escherichia coli and characterization.
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Two putative alpha-galactosidase genes from rice (Oryza sativa L. var. Nipponbare) belonging to glycoside hydrolase family 27 were cloned and expressed in Escherichia coli. These enzymes showed alpha-galactosidase activity and were purified by Ni Sepharose column chromatography. Two purified
Bacillus amyloliquefaciens inoculation alters physiology of rice (Oryza sativa L. var. IR-36) through modulating carbohydrate metabolism to mitigate stress induced by nutrient starvation.
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To avoid disproportionate usage of chemicals in agriculture, an alternative eco-friendly strategy is required to improve soil fertility, and enhance crop productivity. Therefore, the present study demonstrates the role of plant beneficial rhizobacteria viz., Paenibacillus lentimorbus B-30488
Cloning, characterization and functional expression of a new beta-D-fructofuranosidase (Os beta fruct2) cDNA from Oryza sativa.
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A new cDNA (Os beta fruct2) encoding an acid beta-D-fructofuranosidase from rice has been cloned, sequenced and expressed in Pichia pastoris. The full-length cDNA is 2453 base pairs long and encodes a pre-pro-protein of 682 amino acids. The cDNA fragment coding for mature enzyme was sub-cloned into
Partial purification and characterization of soluble acid invertases from rice (Oryza sativa) leaves.
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There are three soluble acid invertases in the leaves of rice. They could be separated by DEAE1-Sephacel chromatography, and named IT1, IT2 and IT3. The molecular weights of IT1, IT2 and IT3, determined by HPLC gel filtration chromatography, were 220 kD, 59 kD and 67 kD, respectively. Their pI
Partial purification and characterization of invertase isozymes from rice grains (Oryza sativa).
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Four invertase isozymes have been isolated from the milky stage rice grains. According to the pH optima, they are classified as one alkaline (IT7) and three acid invertases. The acid invertases are further divided into two soluble forms (IT4 and IT5) and one cell wall-bound (ITb) form which was
Alteration of oxidative and carbohydrate metabolism under abiotic stress in two rice (Oryza sativa L.) genotypes contrasting in chilling tolerance.
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Abiotic stress is a major limiting factor in crop production. Physiological comparisons between contrasting abiotic stress-tolerant genotypes will improve understanding of stress-tolerant mechanisms. Rice seedlings (S3 stage) of a chilling-tolerant (CT) genotype (CT6748-8-CA-17) and a
Comparative metabolomic analysis of seed metabolites associated with seed storability in rice (Oryza sativa L.) during natural aging.
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Seed storability is an important trait for crop breeding, however, the mechanism underlying seed storability remains largely unknown. Here, a mass spectrometry-based comparative metabolomic study was performed for rice seeds before and after 24-month natural storage between two hybrid rice
Overexpression of cold-inducible wheat galactinol synthase confers tolerance to chilling stress in transgenic rice.
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Galactinol synthase (GolS) is considered to be a key regulator of the biosynthesis of Raffinose family oligosaccharides (RFOs). Accumulation of RFOs has been reported to play a role in protection against abiotic stresses. We identified two cDNAs encoding galactinol synthase from wheat (Triticum
Structure of a plant β-galactosidase C-terminal domain.
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Most plant β-galactosidases, which belong to glycoside hydrolase family 35, have a C-terminal domain homologous to animal galactose and rhamnose-binding lectins. To investigate the structure and function of this domain, the C-terminal domain of the rice (Oryza sativa L.) β-galactosidase 1 (OsBGal1
Knocking down mitochondrial iron transporter (MIT) reprograms primary and secondary metabolism in rice plants.
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Iron (Fe) is an essential micronutrient for plant growth and development, and its reduced bioavailability strongly impairs mitochondrial functionality. In this work, the metabolic adjustment in the rice (Oryza sativa) mitochondrial Fe transporter knockdown mutant (mit-2) was analysed. Biochemical
Abiotic stress regulates expression of galactinol synthase genes post-transcriptionally through intron retention in rice.
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UNASSIGNED
Expression of the Galactinol synthase genes in rice is regulated through post-transcriptional intron retention in response to abiotic stress and may be linked to Raffinose Family Oligosaccharide synthesis in osmotic perturbation. Galactinol synthase (GolS) is the first committed enzyme in
Alkaline alpha-galactosidase degrades thylakoid membranes in the chloroplast during leaf senescence in rice.
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Here, we studied the functional role of a chloroplast alkaline alpha-galactosidase (OsAkalphaGal) in the breakdown of thylakoid membranes during rice (Oryza sativa) leaf senescence. We assayed the enzyme activity of recombinant OsAkalphaGal with different natural substrates and examined the effect
Biochemical Changes in the Rice Grain during Germination.
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Changes in the content of starch, protein, and RNA and in the activity of their hydrolases in the rice endosperm (Oryza sativa L., variety IR8) were determined during the first week of germination without added nutrient both in the dark and in the light. Changes were generally more rapid in the dark
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