Pyrrolizidine Alkaloid– Containing Toxic Plants (<i>Senecio, Crotalaria, Cynoglossum, Amsinckia, Heliotropium, </i> and <i>Echium</i> spp.)
نویسنده
چکیده
منابع مشابه
Ornithine decarboxylase, polyamines, and pyrrolizidine alkaloids in senecio and crotalaria.
When tested for ornithine and arginine decarboxylases, pyrrolizidine alkaloid-bearing Senecio riddellii, S. longilobus (Compositae), and Crotalaria retusa (Leguminosae) plants exhibited only ornithine decarboxylase activity. This contrasts with previous studies of four species of pyrrolizidine alkaloid-bearing Heliotropium (Boraginaceae) in which arginine decarboxylase activity was very high re...
متن کاملQualitative and Quantitative Determination of Pyrrolizidine Alkaloids of Wheat and Flour Contaminated with Senecio in Mazandaran Province Farms
The Pyrrolizidine Alkaloids (PAs) are a group of chemicals found in a variety of plant species throughout the world. These toxic alkaloids are distributed mainly in Senecio (Compositae), Crotalaria (Legominosae) and Heliotropium (Boraginaceae) species. Plants containing these alkaloids cause significant mammalian morbidity and mortality, especially in humans. Upon ingestion, metabolic activatio...
متن کاملQualitative and Quantitative Determination of Pyrrolizidine Alkaloids of Wheat and Flour Contaminated with Senecio in Mazandaran Province Farms
The Pyrrolizidine Alkaloids (PAs) are a group of chemicals found in a variety of plant species throughout the world. These toxic alkaloids are distributed mainly in Senecio (Compositae), Crotalaria (Legominosae) and Heliotropium (Boraginaceae) species. Plants containing these alkaloids cause significant mammalian morbidity and mortality, especially in humans. Upon ingestion, metabolic activatio...
متن کاملALKALOIDS OF BORAGINACEAE II [I], PYRROLIZIDINE, ALKALOIDS OF HELIOTROPIUM E UROPAEUM L. POPULATION GARMSAR
Helitropium europaeum L. population Garmsar was shown to contain three major alkaloids: heliotrine N-oxide (2), lasiocarpine (4) and lasiocarpine N-oxide (5); and four minor alkaloids: heliotrine (I), europine (3), acetyllasiocarpine (6) and a novel alkaloid acetyllasiocarpine N-oxide (7).
متن کاملToxicity Profile of Pyrrolizidine Alkaloid-Containing Medicinal Plants: Emphasis on Senecio Species
Pyrrolizidine alkaloids (PAs) are found in various plant genera worldwide. Poisoning by PA-containing plants is usually accidental, by the ingestion of grain inadvertently contaminated with seeds of pyrrolizidine-containing weeds, or the consumption of herbal or bush tea, or when taken as herbal infusions for medicinal purposes. In this paper the toxicity of PA-containing plants, with emphasis ...
متن کامل