YOHIMBINE AND ERGOT ALKALOIDS AS NATURALLY OCCURRING ANTIMETABOLITES OF SEROTONIN
نویسندگان
چکیده
منابع مشابه
Toxic Behaviour of Naturally Occurring Pyrrolizidine Alkaloids
The Pyrrolizidine Alkaloids (PAs) are the chemicals which are found in various plant species throughout the world. Pyrrolizidine alkaloids (PAs) are secondary metabolites those have been evolved as a powerful means in the plant defensive system against herbivores. Several studies are being performing to detect presence of PAs in the food and feed which are obtained from plants through direct or...
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The principles and application of established and newer methods for the quantitative and semi-quantitative determination of ergot alkaloids in food, feed, plant materials and animal tissues are reviewed. The techniques of sampling, extraction, clean-up, detection, quantification and validation are described. The major procedures for ergot alkaloid analysis comprise liquid chromatography with ta...
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The effects of four alkaloids on the biosynthesis of ochratoxin A (OTA), ochratoxin B (OTB) and citrinin were examined on four OTA-producing aspergilli: Aspergillus auricomus, A. sclerotiorum and two isolates of A. alliaceus. Piperine and piperlongumine, natural alkaloids of Piper longum, significantly inhibited OTA production at 0.001% (w/v) for all aspergilli examined. Piperine and piperlongu...
متن کاملBiosynthetic Pathways of Ergot Alkaloids
Ergot alkaloids are nitrogen-containing natural products belonging to indole alkaloids. The best known producers are fungi of the phylum Ascomycota, e.g., Claviceps, Epichloë, Penicillium and Aspergillus species. According to their structures, ergot alkaloids can be divided into three groups: clavines, lysergic acid amides and peptides (ergopeptines). All of them share the first biosynthetic st...
متن کاملScreening Isolates for Ergot Alkaloids
A procedure was developed to isolate and determine ergot alkaloid production by Acremonium coenophialum, the endophytic fungus of tall fescue. The procedure established that macerated leaf sheath or pith from inRorescence stem placed either in a liquid medium or on a corn meal-malt extract agar medium produced isolated mycelium and characteristic conidia within a 3to 3.5-week period. Once isola...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1953
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)52368-7