The Experts below are selected from a list of 288 Experts worldwide ranked by ideXlab platform
Monica Butnariu - One of the best experts on this subject based on the ideXlab platform.
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An analysis of Sorghum halepense's behavior in presence of tropane alkaloids from Datura Stramonium extracts
Chemistry Central Journal, 2012Co-Authors: Monica ButnariuAbstract:BACKGROUND: This study aimed to quantify the allelopathic potential of Datura Stramonium (Jimson weed). Sorghum halepense (Johnsongrass) tolerance was assessed by germinating, seed and growing seedlings, dosing of photo-synthesis pigments, followed by treatment with D. Stramonium extract tropane alkaloids. RESULTS: Preliminary chemical analysis of the extracts showed the presence of alkaloids.The presence of alkaloids was confirmed through HPLC-UV system analysis. Various concentrations of analytic purity alkaloids had similar effects on germination and development of S. halepense's root systems with those of extracts from of D. Stramonium. Germination was not affected by any of the tested extracts, but growth was inhibited by the presence of tropane alkaloids. Extracts had effects at higher alkaloid concentrations. Seedlings of S. halepense developed toxicity symptoms in the presence of alkaloid extracts, but the occurrence of several chlorotic and necrotic areas was noticed in the flower extract biotest. CONCLUSIONS: Results show that the tested species is sensitive to alkaloids in their growth environment. This research justifies the fact that aqueous extracts from D. Stramonium are adequate to the situations in which S. halepense becomes damaging.
Strahil Berkov - One of the best experts on this subject based on the ideXlab platform.
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alkaloid patterns in some varieties of datura Stramonium
Fitoterapia, 2006Co-Authors: Strahil Berkov, Rawia Zayed, Tsvetelina DonchevaAbstract:A comparative GC-MS investigation of the alkaloid patterns of three varieties of Datura Stramonium vars. Stramonium, tatula and godronii, was carried out. Twenty-five tropane alkaloids were identified in the plant organs. Alkaloid patterns of the roots, leaves and seeds of the varieties grown at equal conditions in Bulgaria were very similar. In contrast, alkaloid pattern of D. Stramonium var. Stramonium, grown in Egypt, showed significant differences indicating that it is influenced more strongly by the environmental factors than genetic ones.
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gc ms investigation of tropane alkaloids in datura Stramonium
Zeitschrift für Naturforschung C, 2002Co-Authors: Stefan Philipov, Strahil BerkovAbstract:: Alkaloids, GS-MS, Datura Stramonium The alkaloid spectrum in roots, leaves and seeds of Datura Stramonium L. was investigated by GC-MS. Twenty-nine tropane alkaloids are detected. Twelve of them are new constituents for the species and the two tropane esters 3-(3'-acetoxytropoyloxy)tropane (21) and 3-(2'-hydroxytropoyloxy)tropane (26) are described for the first time.
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size and alkaloid content of seeds in induced autotetraploids of datura innoxia datura Stramonium and hyoscyamus niger
Pharmaceutical Biology, 2001Co-Authors: Strahil BerkovAbstract:Alkaloid content and metric features of seeds in diploid and induced autotetraploid Datura innoxia Mill., D. Stramonium L. and Hyoscyamus niger L. were studied. As a result of chromosome doubling, the seeds of tetraploid forms were larger and heavier. Scopolamine was the main alkaloid in both ploidy levels of D. innoxia and H. niger whereas hyoscyamine was the main alkaloid in D. Stramonium. The tetraploid seeds of Datura innoxia, D. Stramonium and Hyoscyamus niger had 1.86-, 1.65- and 1.96-times higher alkaloid contents compared to the seeds of the diploid form. The scopolamine to hyoscyamine ratio in tetraploids was higher in both Datura species and lower in Hyoscyamus niger. The increased size and alkaloid content makes tetraploid seeds a better source of alkaloids than diploid seeds.
Tsvetelina Doncheva - One of the best experts on this subject based on the ideXlab platform.
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alkaloid patterns in some varieties of datura Stramonium
Fitoterapia, 2006Co-Authors: Strahil Berkov, Rawia Zayed, Tsvetelina DonchevaAbstract:A comparative GC-MS investigation of the alkaloid patterns of three varieties of Datura Stramonium vars. Stramonium, tatula and godronii, was carried out. Twenty-five tropane alkaloids were identified in the plant organs. Alkaloid patterns of the roots, leaves and seeds of the varieties grown at equal conditions in Bulgaria were very similar. In contrast, alkaloid pattern of D. Stramonium var. Stramonium, grown in Egypt, showed significant differences indicating that it is influenced more strongly by the environmental factors than genetic ones.
Burkhard Schmidt - One of the best experts on this subject based on the ideXlab platform.
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metabolism of the herbicide glufosinate ammonium in plant cell cultures of transgenic rhizomania resistant and non transgenic sugarbeet beta vulgaris carrot daucus carota purple foxglove digitalis purpurea and thorn apple datura Stramonium
Pest Management Science, 2001Co-Authors: Boris P Muller, Andreas Zumdick, Ingolf Schuphan, Burkhard SchmidtAbstract:The metabolism of the herbicide glufosinate-ammonium was investigated in heterotrophic cell suspension and callus cultures of transgenic (bar-gene) and non-transgenic sugarbeet (Beta vulgaris). Similar studies were performed with suspensions of carrot (Daucus carota), purple foxglove (Digitalis purpurea) and thorn apple (Datura Stramonium). 14C-labelled chemicals were the (racemic) glufosinate, L-glufosinate, and D-glufosinate, as well as the metabolites N-acetyl L-glufosinate and 3-(hydroxymethylphosphinyl)propionic acid (MPP). Cellular absorption was generally low, but depended noticeably on plant species, substance and enantiomer. Portions of non-extractable residues ranged from 0.1% to 1.2% of applied 14C. Amounts of soluble metabolites resulting from glufosinate or L-glufosinate were between 0.0% and 26.7% of absorbed 14C in non-transgenic cultures and 28.2% and 59.9% in transgenic sugarbeet. D-Glufosinate, MPP and N-acetyl L-glufosinate proved to be stable. The main metabolite in transgenic sugarbeet was N-acetyl L-glufosinate, besides traces of MPP and 4-(hydroxymethylphosphinyl)butanoic acid (MPB). In non-transgenic sugarbeet, glufosinate was transformed to a limited extent to MPP and trace amounts of MPB. In carrot, D Stramonium and D purpurea, MPP was also the main product; MPB was identified as a further trace metabolite in D Stramonium and D purpurea. © 2001 Society of Chemical Industry
Ozlem Guneysel - One of the best experts on this subject based on the ideXlab platform.
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Anticholinergic Syndrome Due to Suicidal Intake of Datura Stramonium: A Case Report Özkiyim Amaçli Datura Stramonium Alimina Bağli Antikolinerjik Sendrom:
2020Co-Authors: Olgu Sunumu, Ali Kandemir, Mehmet Tatli, Alparslan Mutlu, Ozlem GuneyselAbstract:Introduction: Datura Stramonium is a member of the Belladonna alkaloid family. It contains atropine and can cause anticholinergic symptoms. Datura Stramonium intoxications in the literature often occur as side effects of an alternative medicine method. In our case, the patient researched and used it with the aim of suicide. Case Report: A 38-year-old patient was brought to the emergency department with confusion, muscle contractions, and hallucinations. The patient’s relatives informed us he had eaten seeds of a plant 8 hours before he arrived to the hospital, and his complaints had started 5 to 6 hours after he had eaten the seeds. He was an old boxer and he looked like he was fighting against an imaginary opponent with the face off with both arms. His pupils were mydriatic, the mucosal membranes and his tongue were dry, his bowel sounds were decreased, and his eyes were red. We had learned that the seeds were datura Stramonium seeds. We administered physostigmine. Patient consciousness recovered after physostigmine. Patient was discharged after follow-up. Conclusion: Patients who are admitted to emergency services with anticholinergic toxidrome should be kept in mind about plants like datura Stramonium which is commonly used for alternative medicine and emergent appropriate therapy should started early.
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Anticholinergic Syndrome Due to Suicidal Intake of Datura Stramonium: A Case Report
Journal of Academic Emergency Medicine Case Reports, 2014Co-Authors: Ali Kandemir, Mehmet Tatli, Alparslan Mutlu, Ozlem GuneyselAbstract:Introduction: Datura Stramonium is a member of the Belladonna alkaloid family. It contains atropine and can cause anticholinergic symptoms. Datura Stramonium intoxications in the literature often occur as side effects of an alternative medicine method. In our case, the patient researched and used it with the aim of suicide.Case Report: A 38-year-old patient was brought to the emergency department with confusion, muscle contractions, and hallucinations. The patient’s relatives informed us he had eaten seeds of a plant 8 hours before he arrived to the hospital, and his complaints had started 5 to 6 hours after he had eaten the seeds. He was an old boxer and he looked like he was fighting against an imaginary opponent with the face off with both arms. His pupils were mydriatic, the mucosal membranes and his tongue were dry, his bowel sounds were decreased, and his eyes were red. We had learned that the seeds were datura Stramonium seeds. We administered physostigmine. Patient consciousness recovered after physostigmine. Patient was discharged after follow-up.Conclusion: Patients who are admitted to emergency services with anticholinergic toxidrome should be kept in mind about plants like datura Stramonium which is commonly used for alternative medicine and emergent appropriate therapy should started early
