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Role of inhibitors in the induction of differentiation in callus cultures of Brassica, Datura and Nicotiana.

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The effect of various inhibitors on differentiation (shoot morphogenesis) in callus cultures of Brassica, Datura and Nicotiana has been investigated. Hormone medium without any inhibitor (control), resulted in 6% shoot formation. Addition of inhibitors such as actinomycin D, cordycepin, abscisic

First Report of Tobacco vein banding mosaic virus in China (Xian, Shaanxi Province) in Datura stramonium and Tobacco.

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Tobacco vein banding mosaic virus (TVBMV) has been reported in Taiwan (1), North America (Tennessee) (2), and Japan (3) and induces a severe disease of tobacco. During surveys on viruses of vegetables in China, TVBMV was isolated from a Datura stramonium weed plant in July 1998 in Shaanxi Province.

Expression of an antisense Datura stramonium S-adenosylmethionine decarboxylase cDNA in tobacco: changes in enzyme activity, putrescine-spermidine ratio, rhizogenic potential, and response to methyl jasmonate.

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S-adenosylmethionine decarboxylase activity (SAMDC; EC 4.1.1.21) leads to spermidine and spermine synthesis through specific synthases which use putrescine, spermidine and decarboxylated S-adenosylmethionine as substrates. In order to better understand the regulation of polyamine (PA), namely

Primary function for a chemical defense? Nicotine does not protect Datura stramonium L from UV damage.

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The chemical defenses of plants are thought to play many different functional roles, all of which in some way decrease the costs of deploying the defense. However, few of these other functions have been tested with metabolites that are clearly defensive. Nicotine is a potent chemical defense with a

Assessing the tobacco-rattle-virus-based vectors system as an efficient gene silencing technique in Datura stramonium (Solanaceae).

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Datura stramonium is a well-known medicinal plant, which is important for its alkaloids. There are intrinsic limitations for the natural production of alkaloids in plants; metabolic engineering methods can be effectively used to conquer these limitations. In order for this the genes involved in

[TMV-infection localization and development of induced virus resistance in Nicotiana sanderae Hort., Datura stramonium L. and Datura metel].

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The localization of virus infection and development of local and systemic induced resistance in plants Nicotiana sanderae Hort., Datura stramonium L. and D. metel L. infected by TMV have been studied. It was shown that acquired resistance to the second infection is induced in hypersensitive plants

LC-MS/MS based comparative proteomics of floral nectars reveal different mechanisms involved in floral defense of Nicotiana spp., Petunia hybrida and Datura stramonium.

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Tobacco floral nectar (FN) is a biological fluid produced by nectaries composed of sugars, amino acids and proteins called nectarins, involved in the floral defense. FN provides an ideal source of nutrients for microorganisms. Understanding the role of nectar proteins is essential to predict impacts

[Observation of cells tolerant of tobacco mosaic virus in virus-induced local lesions in Datura stramonium L. leaves].

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Ultrastructural examination of tobacco mosaic virus-induced local lesions developing in leaves of Datura stramonium plants demonstrated that, in the central area of the lesions, the cell response to viral invasion was not uniform. Most cells exhibited an acute hypersensitive reaction and underwent

Species of RNA extracted from tobacco and Datura plants and their differential sensitivity to actinomycin D.

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Photoreactivation of DNA-containing cauliflower mosaic virus and tobacco mosaic virus RNA on Datura.

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[Synthetic induction of an antiviral factor in tobacco and Datura by application of phytic acid].

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Visualization of tobacco mosaic virus in local lesions of Datura stramonium.

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[Applicability of Datura stramonium for the determination of titer of tobacco mosaic virus].

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First Report of Twenty-two New Hosts of Potato leafroll virus.

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The known host range of Potato leafroll virus (PLRV, genus Polerovirus, family Luteoviridae) is narrow, consisting of 21 species in 5 families: 3 Amaranthaceae, 2 Cruciferae, 1 Nolanaceae, 1 Portulacaceae, and 14 Solanaceae. Over a period of years, we identified 22 additional host species of PLRV in

[Effect of alcoholic extracts of wild plants on the inhibition of growth of Aspergillus flavus, Aspergillus niger, Penicillium chrysogenum, Penicillium expansum, Fusarium moniliforme and Fusarium poae moulds].

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Fungicidal activity of wild plants Larrea tridentata, Karwinskia humboldtiana, Ricinus communis, Eucalyptus globulus, Ambrosia ambrosioides, Nicotiana glauca, Ambrosia confertiflora, Datura discolor, Baccharis glutinosa, Proboscidea parviflora, Solanum rostratum, Jatropha cinerea, Salpianthus

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