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8 résultats
Comparative transcriptome analysis of tobacco (Nicotiana tabacum) leaves to identify aroma compound-related genes expressed in different cultivated regions.
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To identify genes that are differentially expressed in tobacco in response to environmental changes and to decipher the mechanisms by which aromatic carotenoids are formed in tobacco, an Agilent Tobacco Gene Expression microarray was adapted for transcriptome comparison of tobacco leaves derived
The effect of antibodies to neoxanthin on electron transport on the oxygen evolving side of photosystem II and the reactions of this antiserum with variuos chloroplast preparations.
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Antibodies to neoxanthin agglutinate stroma-free swellable chloroplasts from tobacco (Nicotiana tabacum var. John William's Broadleaf) and Antirrhinum (Antirrhinum majus) whereas stroma-freed chloroplasts, which have lost the swellability are not agglutinated despite the fact that antibodies to
Comparative immunological detection of lipids and carotenoids on peptides of photosystem I from higher plants and cyanobacteria.
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Photosystem I preparations were obtained from wild-type tobacco Nicotiana tabacum var. JWB, three chlorophyll-deficient tobacco mutants: Su/su, Su/su var. Aurea and yellow-green leaf patches of the variegated mutant NC 95, Spinacia oleracea and furthermore from the mesophilic cyanobacterium
Comparative immunological and chemical analysis of lipids and carotenoids of the D1-peptide and of the light-harvesting-complex of photosystem II of Nicotiana tabacum.
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The light-harvesting-complex (LHCP) was isolated from photosystem II of Nicotiana tabacum var. John William's Broadleaf by means of the detergent acetyl-beta-D-glucopyranoside and fractionating centrifugation. The D1-peptide of photosystem II was isolated as a dimer with the molecular mass of 66 kDa
Nicotiana glauca engineered for the production of ketocarotenoids in flowers and leaves by expressing the cyanobacterial crtO ketolase gene.
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Nicotiana glauca is a tobacco species that forms flowers with carotenoid-pigmented petals, sepals, pistil, ovary and nectary tissue. The carotenoids produced are lutein, ss-carotene as well as some violaxanthin and antheraxanthin. This tobacco species was genetically modified for ketocarotenoid
Overexpression of lycopene ε-cyclase gene from lycium chinense confers tolerance to chilling stress in Arabidopsis thaliana.
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Lutein plays an important role in protecting the photosynthetic apparatus from photodamage and eliminating ROS to render normal physiological function of cells. As a rate-limiting step for lutein synthesis in plants, lycopene ε-cyclase catalyzes lycopene to δ-carotene. We cloned a lycopene ε-cyclase
Abscisic acid biosynthesis in roots : I. The identification of potential abscisic acid precursors, and other carotenoids.
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The pathway of water-stress-induced abscisic acid (ABA) biosynthesis in etiolated and light-grown leaves has been elucidated (see A.D. Parry and R. Horgan, 1991, Physiol. Plant. 82, 320-326). Roots also have the ability to synthesise ABA in response to stress and it was therefore of interest to
New target carotenoids for CCD4 enzymes are revealed with the characterization of a novel stress-induced carotenoid cleavage dioxygenase gene from Crocus sativus.
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Apocarotenoid compounds play diverse communication functions in plants, some of them being as hormones, pigments and volatiles. Apocarotenoids are the result of enzymatic cleavage of carotenoids catalyzed by carotenoid cleavage dioxygenase (CCD). The CCD4 family is the largest family of plant CCDs,
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