Alkaloids originally isolated from the ergot fungus Claviceps purpurea (Hypocreaceae). They include compounds that are structurally related to ergoline (ERGOLINES) and ergotamine (ERGOTAMINES). Many of the ergot alkaloids act as alpha-adrenergic antagonists.

A vasoconstrictor found in ergot of Central Europe. It is a serotonin agonist that has been used as an oxytocic agent and in the treatment of MIGRAINE DISORDERS.

Poisoning caused by ingesting ergotized grain or by the misdirected or excessive use of ergot as a medicine.

A genus of ascomycetous fungi, family Clavicipitaceae, order Hypocreales, parasitic on various grasses (POACEAE). The sclerotia contain several toxic alkaloids. Claviceps purpurea on rye causes ergotism.

Organic nitrogenous bases. Many alkaloids of medical importance occur in the animal and vegetable kingdoms, and some have been synthesized. (Grant & Hackh's Chemical Dictionary, 5th ed)

A series of structurally-related alkaloids that contain the ergoline backbone structure.

An ergot alkaloid (ERGOT ALKALOIDS) with uterine and VASCULAR SMOOTH MUSCLE contractile properties.

A plant genus of the family POACEAE. The common name of fescue is also used with some other grasses.

The anamorphic form of the fungus EPICHLOE. Many Neotyphodium species produce ERGOT ALKALOIDS.

A series of structurally-related alkaloids containing the ergotaman backbone structure.

Group of alkaloids containing a benzylpyrrole group (derived from TRYPTOPHAN)

An order of fungi in the phylum ASCOMYCOTA that includes a number of species which are parasitic on higher plants, insects, or fungi. Other species are saprotrophic.

A mitosporic fungal genus with many reported ascomycetous teleomorphs. Cephalosporin antibiotics are derived from this genus.

A large family of narrow-leaved herbaceous grasses of the order Cyperales, subclass Commelinidae, class Liliopsida (monocotyledons). Food grains (EDIBLE GRAIN) come from members of this family. RHINITIS, ALLERGIC, SEASONAL can be induced by POLLEN of many of the grasses.

Common member of the Gramineae family used as cattle FODDER. It harbors several fungi and other parasites toxic to livestock and people and produces allergenic compounds, especially in its pollen. The most commonly seen varieties are L. perenne, L. multiflorum, and L. rigidum.

A species of imperfect fungi from which the antibiotic fumigatin is obtained. Its spores may cause respiratory infection in birds and mammals.

A homolog of ERGONOVINE containing one more CH2 group. (Merck Index, 11th ed)

A genus of ascomycetous fungi in the family Clavicipitaceae, order HYPOCREALES, which are fungal symbionts of grasses. Anamorphic forms are in the genus NEOTYPHODIUM.

Attachment of isoprenoids (TERPENES) to other compounds, especially PROTEINS and FLAVONOIDS.

A group of ALKALOIDS, characterized by a nitrogen-containing necine, occurring mainly in plants of the BORAGINACEAE; COMPOSITAE; and LEGUMINOSAE plant families. They can be activated in the liver by hydrolysis of the ester and desaturation of the necine base to reactive electrophilic pyrrolic CYTOTOXINS.

An endosymbiont that is either a bacterium or fungus living part of its life in a plant. Endophytes can benefit host plants by preventing pathogenic organisms from colonizing them.

A group of indole-indoline dimers which are ALKALOIDS obtained from the VINCA genus of plants. They inhibit polymerization of TUBULIN into MICROTUBULES thus blocking spindle formation and arresting cells in METAPHASE. They are some of the most useful ANTINEOPLASTIC AGENTS.

Poisoning caused by the ingestion of mycotoxins (toxins of fungal origin).

Used as a support for ion-exchange chromatography.

Disturbances of MILK secretion in either SEX, not necessarily related to PREGNANCY.

Alkaloids extracted from various species of Cinchona.

The presence in food of harmful, unpalatable, or otherwise objectionable foreign substances, e.g. chemicals, microorganisms or diluents, before, during, or after processing or storage.

A 9,10alpha-dihydro derivative of ERGOTAMINE. It is used as a vasoconstrictor, specifically for the therapy of MIGRAINE DISORDERS.

Foodstuff used especially for domestic and laboratory animals, or livestock.

A mixture of the mesylates (methane sulfonates) of DIHYDROERGOCORNINE; DIHYDROERGOCRISTINE; and the alpha- and beta-isomers of DIHYDROERGOCRYPTINE. The substance produces a generalized peripheral vasodilation and a fall in arterial pressure and has been used to treat symptoms of mild to moderate impairment of mental function in the elderly.

A group of related plant alkaloids that contain the BERBERINE heterocyclic ring structure.

A semisynthetic ergotamine alkaloid that is a dopamine D2 agonist. It suppresses prolactin secretion.

Sets of enzymatic reactions occurring in organisms and that form biochemicals by making new covalent bonds.

Alkaloids derived from TYRAMINE combined with 3,4-dihydroxybenzaldehyde via a norbelladine pathway, including GALANTAMINE, lycorine and crinine. They are found in the Amaryllidaceae (LILIACEAE) plant family.