8. Ergot

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منابع مشابه

Analysis of Ergot Alkaloids

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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Prevalence of ergot toxicity

International Poultry Production — Volume 14 Number 1 Ergot toxicity or ergotism is caused by ingestion of cereal or grass grains infected by the fungus Claviceps purpurea. The toxic agents (alkaloids) are produced by the fungus Claviceps purprea which attacks the embryo of the developing kernel forming a sclerotium, a black tangle of vegetative fungal strands. The sclerotium may contain more t...

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The History of Ergot

Years ago a review on ergot alkaloids (EA) appeared with the title: “The biosynthesis of ergot alkaloids; the story of the unexpected” (Floss, 1980). I don’t believe that any other title could be more appropriate since the entire history of EA research, from the discovery of ergotamine almost a century ago until the present, has truly been the history of the unexpected. The beginning of modern ...

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Screening 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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Biosynthetic 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...

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ژورنال

عنوان ژورنال: The American Journal of the Medical Sciences

سال: 1841

ISSN: 0002-9629

DOI: 10.1097/00000441-184110000-00028