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hyoscyamus niger/skopolaminas
Nuoroda įrašoma į mainų sritį
Puslapis 1 nuo 34 rezultatus
Scopolamine production in suspension cultures and redifferentiated roots of Hyoscyamus niger.
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Adventitious roots were induced from 2-year-old, hyoscyamine rich suspension cultures of Hyoscyamus niger L. The cultured roots grew well in Linsmaier-Skoog medium containing 10 (-8)M 6-benzyladenine with 3% sucrose and produced much more scopolamine (0.12-0.30% dW) than hyoscyamine (0.04-0.08% dW).
Promoting the Accumulation of Scopolamine and Hyoscyamine in Hyoscyamus Niger L. Through EMS Based Mutagenesis
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The overexploitation of medicinal plants is depleting gene pool at an alarming rate. In this scenario inducing the genetic variability through targeted mutations could be beneficial in generating varieties with increased content of active compounds. The present study aimed to develop a reproducible
Simultaneous determination of atropine, scopolamine, and anisodamine from Hyoscyamus niger L. in rat plasma by high-performance liquid chromatography with tandem mass spectrometry and its application to a pharmacokinetics study.
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In order to investigate the pharmacokinetics of tropane alkaloids in Hyoscyamus niger L., a sensitive and specific high-performance liquid chromatography with tandem mass spectrometry method for the simultaneous determination of atropine, scopolamine, and anisodamine in rat plasma is developed and
[Cloning and characterization of an aromatic amino acid aminotransferase(ArAT) gene involved in tropane alkaloid biosynthesis from Hyoscyamus niger].
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Tropane alkaloids are anticholinergic drugs widely used clinically. Biosynthesis of tropane alkaloids in planta involves a step of transamination of phenylalanine. Based on the sequenced transcriptomes of lateral roots and leaves of Hyoscyamus niger, we found three annotated aromatic amino acid
Discrimination of Solanaceae taxa and quantification of scopolamine and hyoscyamine by ATR-FTIR spectroscopy.
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Plant species of the Solanaceae family (nightshades) contain pharmacologically active anticholinergic tropane alkaloids, e.g., scopolamine and hyoscyamine. Tropane alkaloids are of special interest, either as active principles or as starting materials for semisynthetic production of other
Molecular cloning of hyoscyamine 6 beta-hydroxylase, a 2-oxoglutarate-dependent dioxygenase, from cultured roots of Hyoscyamus niger.
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Roots of several solanaceous plants produce anticholinergic alkaloids, hyoscyamine and scopolamine. Hyoscyamine 6 beta-hydroxylase, a 2-oxoglutarate-dependent dioxygenase (EC 1.14.11.11), catalyzes hydroxylation of hyoscyamine in the biosynthetic pathway leading to scopolamine. We report here on the
Insecticidal Activity of Hyoscyamus niger L. on Lucilia sericata Causing Myiasis
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Background: Hyoscyamus niger L. (Solanaceae) generally known as henbane, is commonly distributed in Europe and Asia. In Turkey, henbane seeds have been used in folk medicine to remove worms from the eyes. The present study aimed to investigate the
Epoxidation in vivo of hyoscyamine to scopolamine does not involve a dehydration step.
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Hyoscyamine is epoxidized to scopolamine via 6beta-hydroxyhyoscyamine in several solanaceous plants. 6,7-Dehydrohyoscyamine has been proposed to be an intermediate in the conversion of 6beta-hydroxyhyoscyamine to scopolamine on the basis of the observation that this unsaturated alkaloid is converted
Comparison of two hyoscyamine 6β-hydroxylases in engineering scopolamine biosynthesis in root cultures of Scopolia lurida.
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Scopolia lurida, a medicinal plant native to the Tibetan Plateau, is among the most effective producers of pharmaceutical tropane alkaloids (TAs). The hyoscyamine 6β-hydroxylase genes of Hyoscyamus niger (HnH6H) and S. lurida (SlH6H) were cloned and respectively overexpressed in hairy root cultures
Metabolic Characterization of Hyoscyamus niger Ornithine Decarboxylase.
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Ornithine decarboxylase (ODC) catalyzes ornithine decarboxylation to yield putrescine, a key precursor of polyamines, and tropane alkaloids (TAs). Here, to investigate in depth the role of ODC in polyamine/TA biosynthesis and to provide a candidate gene for engineering polyamine/TA production, the
Molecular cloning and mRNA expression profiling of the first specific jasmonate biosynthetic pathway gene allene oxide synthase from Hyoscyamus niger.
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In the endeavor to enhance the production of pharmaceutically valuable tropane alkaloids including hyoscyamine and scopolamine in Hyoscyamus niger, methyl jasmonate (MeJA) showed significant stimulation both in tropane biosynthetic pathway enzymes activities and tropane alkaloids yields. Therefore
Inorganic ions in the medium modify tropane alkaloids and riboflavin output in Hyoscyamus niger root cultures.
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BACKGROUND
Hyoscyamus niger L. (Solanaceae) roots are rich of tropane alkaloids, such as hyoscyamine and scopolamine are used as the source of raw material for the pharmaceutical industry.
OBJECTIVE
The aim of the present study was to investigate the effect of calcium, magnesium, and iron ions on
Purification and characterization of hyoscyamine 6 beta-hydroxylase from root cultures of Hyoscyamus niger L. Hydroxylase and epoxidase activities in the enzyme preparation.
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Hyoscyamine 6 beta-hydroxylase, a 2-oxoglutarate-dependent dioxygenase that catalyzes the hydroxylation of l-hyoscyamine to 6 beta-hydroxyhyoscyamine in the biosynthetic pathway leading to scopolamine [Hashimoto, T. & Yamada, Y. (1986) Plant Physiol. 81, 619-625] was purified 310-fold from root
Production of tropane alkaloids in cultured cells of Hyoscyamus niger.
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Tests for calluses rich in tropane alkaloids were made with newly induced calluses of Atropa belladonna, Datura stramonium and Hyoscyamus niger. Only calluses of H. niger gave an alkaloid-positive test.A Hyoscyamus cell line had the highest total alkaloid content of all the calluses screened by the
Promoting scopolamine biosynthesis in transgenic Atropa belladonna plants with pmt and h6h overexpression under field conditions.
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Atropa belladonna is one of the most important plant sources for producing pharmaceutical tropane alkaloids (TAs). T1 progeny of transgenic A. belladonna, in which putrescine N-methyltransferase (EC. 2.1.1.53) from Nicotiana tabacum (NtPMT) and hyoscyamine 6β-hydroxylase (EC. 1.14.11.14) from
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