ergot


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to ergot: ergotamine, Ergot alkaloids, ergot poisoning

ergot

 [er´got]
the dried sclerotium of the fungus Claviceps purpurea, which attacks rye plants. Ergot alkaloids are used as oxytocics and in treatment of migraine. Consumption of excessive amounts of ergot can cause the toxicity known as ergotism.

er·got

(er'got),
The resistant, overwintering stage of the parasitic ascomycetous fungus Claviceps purpurea, a pathogen of cereal rye that transforms the seed of rye into a compact spurlike mass of fungal pseudotissue (the sclerotium) containing five or more optically isomeric pairs of alkaloids. The levorotary isomers induce uterine contractions, control bleeding, and alleviate certain localized vascular disorders (migraine headaches).
See also: ergotism.
Synonym(s): rye smut
[O. Fr. argot, cock's spur]

ergot

/er·got/ (er´got) the dried sclerotium of the fungus Claviceps purpurea, which is developed on rye plants; ergot alkaloids are used as oxytocics and in treatment of migraine. See also ergotism.

ergot

(ûr′gət, -gŏt′)
n.
1. Any of several fungi of the genus Claviceps, especially C. purpurea, that infect various cereal plants and form compact black masses of branching filaments that replace the grains of the host plant. Humans and livestock can be poisoned by ingesting ergot-infected grains.
2. The plant disease caused by such a fungus.
3. The dried sclerotia of ergot, usually obtained from rye seed and used as a source of several medicinally important alkaloids and as the basic source of lysergic acid.

er·got′ic adj.

ergot

[ur′gət]
Etymology: L, ergota, a grain fungus
a fungus structure that replaces the seed of rye and other cereal grasses infested with the parasitic fungus Claviceps purpurea. Ergot contains ergot alkaloids, the agents responsible for what was known as St. Anthony's fire in people who consumed the contaminated grain in the Middle Ages. Effects included hallucinations and such intense vasoconstriction in the extremities that portions of the limbs often developed gangrene and fell off before the person died.

ergot

Herbal medicine
A fungus that infects rye, which is the primary source for ergonovine and ergotamine; its use in herbal medicine is confined to haemostasis and strengthening uterine contractions during childbirth.

er·got

(ĕr'got)
The resistant, overwintering stage of the parasitic ascomycetous fungus Claviceps purpurea, a pathogen of cereal rye that transforms the seed of rye into a compact, spurlike mass of fungal pseudotissue (the sclerotium) containing five or more optically isomeric pairs of alkaloids. The levorotary isomers induce uterine contractions, control bleeding, and alleviate some localized vascular disorders (migraine headaches).
[O. Fr. argot, cock's spur]

ergot

One of various fungi of the genus Claviceps , that can grow on rye and other cereal plants and cause the serious condition of ERGOTISM by virtue of its alpha-adrenoceptor stimulating action. Ergot is the source of various valuable drugs such as ERGOTAMINE and ERGOMETRINE. It is also the source of lysergic acid.

ergot

  1. a disease caused by the ascomycete Claviceps purpurea in cereals and grasses.
  2. a SCLEROTIUM forming in place of a grain in a diseased grain head. Ergots contain substances that are poisonous and are sometimes used medicinally.

ergot (urˑ·gt),

n Latin name:
Claviceps purpurea; part used: sclerotium; uses: muscle stimulant, induce uterine contraction, stop uterine hemorrhage, relaxant, relieve
delirium tremens, spinal congestion, asthma, hysteria, relieve menstrual disorders, galactogogic, night sweats of phthisis; precautions: pulmonary hemorrhage; cerebral hemorrhage; can elevate blood pressure; can cause gangrene. Also called
argot.

er·got

(ĕr'got)
Resistant, overwintering stage of the parasitic ascomycetous fungus Claviceps purpurea.
[O. Fr. argot, cock's spur]
References in periodicals archive ?
Ergot alkaloids produced by the parasitic fungus Claviceps, which parasitises on cereals, include three major groups: clavine alkaloids, dlysergic acid (82) and its derivatives, and ergopeptines.
With the installation of the Sortex A at its Metz Facility, with its state-of-the-art optical sorting and handling technology, lighting and feed systems, InVivo is now able to process incoming grain to remove ergot-contaminated product, consistently achieving a maximum ergot contamination level of just 0.
Although sepsis could not be documented despite a thorough workup, we feel this phenomenon along with the cold and an injection of probably an ergot could have offset the process of gangrene.
With these two new benefits against ergot alkaloids and endotoxins, the Mycofix product line has, once again, been proven to be the best approach to counteract a great range of mycotoxins.
5 million tons a year Saudi market as the Western Australian grain had lower protein levels than required and its grain was sometimes affected by ergot.
Causes of Raynaud's phenomenon* ** Anorexia nervosa ** Autoimmune diseases ** Cancer ** Connective tissue disease ** Hematologic causes (cryoglobulinemia, cold agglutinins, macroglobulins, polycythemia) ** Hypothyroidism ** Intraarterial injections ** Neoplasms ** Neurologic disorders ** Obstructive arterial disease ** Predisposing drugs (beta-blockers, ergot alkaloids, sympathomimetics, clonidine, narcotics, cocaine, methysergide, some chemotherapeutic agents, estrogen, and cyclosporine) ** Systemic sclerosis ** Trauma (vibration/electric shock/frostbite/meat cutters) ** Vasculitis and hepatitis B antigenemia ** Vinyl chloride exposure * From Shinn, 2008 (8).
These include thumbnail sketches of, for example, ergot (note 189) and William of Occam (note 162), and charming asides such as the German chemist Liebig on chocolate (note 1166).
Ergot alkaloids have also been implicated in peripartum cerebral angiopathy (9,10).
covers the range of basic science and applications associated with these fields, and writes for advanced undergraduates and beginning graduate students as he covers the changing scope of biotechnology and industrial microbiology, some organisms commonly used, molecular biology and informatics, industrial media and nutrition of industrial organisms, metabolic pathways, overproduction of metabolites, screening for productive strains, preservation of the gene pool and culturing, and information relative to such products as vinegar, single cell protein, yeast, microbial pesticides, innoculents, fermented foods, organic acids and industrial alcohol, immobilized cells and enzymes, mining microbiology, antibiotics and anti-tumor agents, ergot alkaloids, steroids, vaccines and drug discovery.
Patients taking Sustiva should not take Hismanal (astemizole), Vascor (bepridil), Propulsid (cisapride), Versed (midazolam), Orap (pimozide), Halcion (triazolam), or ergot derivatives (for example, Wigraine and Cafergot).
Bromocriptine is a semisynthetic ergot alkaloid that binds to receptors on normal and tumor lactotrophs and inhibits the synthesis and secretion of prolactin.
Ergot contains the potent toxin ergotamine, the consumption of which induces hallucinations, bizarre behavior, and violent muscle twitching.