gentiana davidii/nicotine

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Cloning of two individual cDNAS encoding 9-cis-epoxycarotenoid dioxygenase from Gentiana lutea, their tissue-specific expression and physiological effect in transgenic tobacco.

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Two 9-cis-epoxycarotenoid dioxygenase (NCED) cDNAs have been cloned from a petal library of Gentiana lutea. Both cDNAs carry a putative transit sequence for chloroplast import and differ mainly in their length and the 5'-flanking regions. GlNCED1 was evolutionary closely related to Arabidopsis

Functional analysis of multiple carotenogenic genes from Lycium barbarum and Gentiana lutea L. for their effects on beta-carotene production in transgenic tobacco.

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Carotenoids are red, yellow and orange pigments, which are widely distributed in nature and are especially abundant in yellow-orange fruits and vegetables and dark green leafy vegetables. Carotenoids are essential for photosynthesis and photoprotection in plant life and also have different

First Report of Clover yellow vein virus on Glycine max in Korea.

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Glycine max (Soybean) is the most important edible crop in Korea. In Korea, eight viruses have been reported to infect soybean, including Alfalfa mosaic virus (AMV), Cowpea mosaic virus (CPMV), Cucumber mosaic virus (CMV), Soybean dwarf virus (SbDV), Soybean mosaic virus (SMV), Soybean yellow common

Isolation and characterization of GtMYBP3 and GtMYBP4, orthologues of R2R3-MYB transcription factors that regulate early flavonoid biosynthesis, in gentian flowers.

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Flavonoids are one of the major plant pigments for flower colour. Not only coloured anthocyanins, but also co-pigment flavones or flavonols, accumulate in flowers. To study the regulation of early flavonoid biosynthesis, two R2R3-MYB transcription factors, GtMYBP3 and GtMYBP4, were identified from

Gentian (Gentiana triflora) prevents transmission of apple latent spherical virus (ALSV) vector to progeny seeds.

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UNASSIGNED Gentian plants ( Gentiana triflora ) severely restrict apple latent spherical virus (ALSV) invasion to the gametes (pollens and ovules) and block seed transmission to progeny plants. Early flowering of horticultural plants can be induced by infection of ALSV vector expressing Flowering

Identification and characterization of R2R3-MYB and bHLH transcription factors regulating anthocyanin biosynthesis in gentian flowers.

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Gentian plants have vivid blue-colored flowers, caused by accumulation of a polyacylated anthocyanin 'gentiodelphin'. We previously performed expression analysis of gentiodelphin biosynthetic genes, and hypothesized that the white-flowered gentian cultivar 'Polarno White' might have resulted from

A peroxiredoxin Q homolog from gentians is involved in both resistance against fungal disease and oxidative stress.

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An antifungal protein (GtAFP1) showing antimicrobial activity against phytopathogenic fungi was purified from leaves of Gentiana triflora. The deduced amino acid sequence of the cDNA of the corresponding gene, GtAFP1, showed 94, 75, 72 and 63% amino acid identities with peroxiredoxin Q from Populus

Strict de novo methylation of the 35S enhancer sequence in gentian.

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A novel transgene silencing phenomenon was found in the ornamental plant, gentian (Gentiana triflora x G. scabra), in which the introduced Cauliflower mosaic virus (CaMV) 35S promoter region was strictly methylated, irrespective of the transgene copy number and integrated loci. Transgenic tobacco

Cloning and characterization of the UDP-glucose:anthocyanin 5-O-glucosyltransferase gene from blue-flowered gentian.

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Blue-flowered gentian (Gentiana triflora) is known to accumulate gentiodelphin, a unique polyacylated delphinidin-type anthocyanin, in the petals. Almost all of the structural genes involved in gentiodelphin biosynthesis have been isolated, but an important gene encoding UDP-glucose:anthocyanin

Consistent transcriptional silencing of 35S-driven transgenes in gentian.

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In this study, no transgenic gentian (Gentiana triflora x Gentiana scabra) plants produced via Agrobacterium-mediated transformation exhibited transgene (GtMADS, gentian-derived MADS-box genes or sGFP, green fluorescent protein) expression in their leaf tissues, despite the use of constitutive

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