lipoxygenase/oryza sativa

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Volatile components in stored rice [Oryza sativa (L.)] of varieties with and without lipoxygenase-3 in seeds.

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Lipoxygenase (LOX) is thought to play an important role in the formation of desirable or undesirable flavor and aroma in many plant products. In rice seeds, LOX activity is localized in the bran fraction and LOX-3 is the major isozyme component. We used gas chromatography-mass spectrometry to

Isolation and some characteristics of Lipoxygenase from aromatic brown rice (Oryza sativa L.) cv. Khao Dawk Mali 105.

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Lipoxygenase from Khao Dawk Mali 105 aromatic brown rice was isolated by extracting brown rice liquid nitrogen powder using 0.2 M phosphate buffer pH 7, fractionating with 30-60% (NH(4))(2)SO(4), dialyzing and gel filtration on Sephadex G-200. The optimum pHs for dialyzed lipoxygenase activity were

Purification and characterization of lipoxygenase from aromatic and non-aromatic rice (Oryza sativa L.).

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Lipoxygenase (Lox) has been extensively purified from aromatic (Bas-370) and non-aromatic (Pusa-834) rice varieties. Crude isolates of Lox from the aromatic varieties (Bas-370 and PB-1) showed higher specific activity (4-fold) when compared to non-aromatic varieties (Pusa-677 and Pusa-834). The

A partial sequence of lipoxygenase gene from genomic DNA of aromatic rice (Oryza sativa L.).

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Aromatic (Bas-370, PB-1) and non-aromatic (Pusa-677, Pusa-834) rice were selected for the characterization and for distribution of lipoxygenase (Lox) genes. Polymorphism was observed when genomic DNA of rice varieties was hybridized with a heterologous lipoxygenase probe. A distinct polymorphic

TALEN-Based Mutagenesis of Lipoxygenase LOX3 Enhances the Storage Tolerance of Rice (Oryza sativa) Seeds.

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The deterioration of rice grain reduces the quality of rice, resulting in serious economic losses for farmers. Lipoxygenases (LOXs) catalyze the dioxygenation of polyunsaturated fatty acids with at least one cis,cis-1,4-pentadiene to form hydroperoxide, which is a major factor influencing seed

Carbohydrate content and antioxidative potential of the seed of three edible indica rice (Oryza sativa L.) cultivars.

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Rice (Oryza sativa L.) grains or seeds are known to lose much of their nutrient and antioxidant contents, following polishing. The current study was undertaken to evaluate and compare the carbohydrate content and antioxidant parameters in the unpolished and polished seeds of three edible indica rice

A Lipoxygenase Pathway Is Activated in Rice after Infection with the Rice Blast Fungus Magnaporthe grisea.

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Lipoxygenase (LOX) and lipid hydroperoxide-decomposing activity (LHDA) markedly increased in the fifth leaves of rice (Oryza sativa cv Aichiasahi) after infection with the rice blast fungus, Magnaporthe grisea. The increases in the enzyme activities were significantly higher in response to infection

A novel lipoxygenase from rice. Primary structure and specific expression upon incompatible infection with rice blast fungus.

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A novel lipoxygenase cDNA (3,007 base pairs) was isolated from rice leaves (Oryza sativa cv. Aichiasahi) which had been infected with an incompatible race of the rice blast fungus, Magnaporthe grisea. A single copy of the gene is present in the rice genome and encodes a protein of 923 residues with

Regulation of jasmonic acid biosynthesis by silicon application during physical injury to Oryza sativa L.

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We investigated the effects of silicon (Si) application on rice plants (Oryza sativa L.) and its responses in the regulation of jasmonic acid (JA) during wounding stress. Endogenous JA was significantly higher in wounded rice plants than in non-wounded. In contrast, Si treatment significantly

Inoculation of Brevibacterium linens RS16 in Oryza sativa genotypes enhanced salinity resistance: Impacts on photosynthetic traits and foliar volatile emissions.

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The emission of volatiles in response to salt stress in rice cultivars has not been studied much to date. Studies addressing the regulation of stress induced volatile emission by halotolerant plant growth promoting bacteria containing ACC (1-aminocyclopropane-1-carboxylate) deaminase are also

Characterization of RCI-1, a chloroplastic rice lipoxygenase whose synthesis is induced by chemical plant resistance activators.

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A full-length lipoxygenase cDNA (RCI-1) has been cloned from rice (Oryza sativa) whose corresponding transcripts accumulate in response to treatment of the plants with chemical inducers of acquired resistance such as benzo(1,2,3)thiadiazole-7-carbothioic acid S-methyl ester (BTH),

Identification of a novel SPLIT-HULL (SPH) gene associated with hull splitting in rice (Oryza sativa L.).

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UNASSIGNED The split-hull phenotype caused by reduced lemma width and low lignin content is under control of SPH encoding a type-2 13-lipoxygenase and contributes to high dehulling efficiency. Rice hulls consist of two bract-like structures, the lemma and palea. The hull is an important organ that

Autotoxicity mechanism of Oryza sativa: transcriptome response in rice roots exposed to ferulic acid.

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BACKGROUND Autotoxicity plays an important role in regulating crop yield and quality. To help characterize the autotoxicity mechanism of rice, we performed a large-scale, transcriptomic analysis of the rice root response to ferulic acid, an autotoxin from rice straw. RESULTS Root growth rate was

Salicylic acid alleviates copper toxicity in rice (Oryza sativa L.) seedlings by up-regulating antioxidative and glyoxalase systems.

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The present study investigated the effect of salicylic acid (SA) on toxic symptoms, lipid peroxidation, reactive oxygen species generation and responses of antioxidative and glyoxalase systems in rice seedlings grown hydroponically under copper (Cu) stress for 48 h. Exposures of 75 and 150 μM Cu(2+)

Trehalose pretreatment induces salt tolerance in rice (Oryza sativa L.) seedlings: oxidative damage and co-induction of antioxidant defense and glyoxalase systems.

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Salinity in the form of abiotic stress adversely effects plant growth, development, and productivity. Various osmoprotectants are involved in regulating plant responses to salinity; however, the precise role of trehalose (Tre) in this process remains to be further elucidated. The present study

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