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Ergovaline, an endophytic alkaloid. 1. Animal physiology and metabolism [PDF]
Ergovaline is an ergot alkaloid found in some endophyte-infected ryegrasses and it has been implicated in the expression of ergotism-like symptoms of grazing livestock, as well as in the protection of the plant against invertebrate predation and abiotic stresses. These selection pressures have resulted in a conflict between the needs of the pasture for
J. L. Klotz, A. M. Nicol
openaire +1 more source
Feeding Tall Fescue Seed Reduces Ewe Milk Production, Lamb Birth Weight and Pre-Weaning Growth Rate
Endophyte-infected tall fescue (E+) produces ergovaline and ergovalinine, which are mycotoxins that act as dopamine agonists to suppress prolactin and induce vasoconstriction.
Jessica L. Britt +8 more
doaj +1 more source
Two experiments were conducted to assess preference by sheep for endophyte-infected tall fescue growing in monoculture at least 5 m away from alfalfa (fescue-middle (FM)) over endophyte-infected tall fescue growing adjacent (0.2 to 1 m; fescue–alfalfa ...
M.A. Friend +2 more
doaj +1 more source
In the past centuries consumption of bread made of ergot-infected flour resulted in mass poisonings and miscarriages. The reason was the sclerotia of Claviceps purpurea (Fr.) Tul.—a source of noxious ergot alkaloids (ergotamine and ergovaline).
Aleksander Smakosz +3 more
doaj +1 more source
Chromosome-End Knockoff Strategy to Reshape Alkaloid Profiles of a Fungal Endophyte
Molecular genetic techniques to precisely eliminate genes in asexual filamentous fungi require the introduction of a marker gene into the target genome.
Simona Florea +4 more
doaj +1 more source
Cases of ergotism in livestock and associated ergot alkaloid concentrations in feed
Ergot-induced disease was known long before Biblical times and has been the root cause for countless human epidemics spanning from the early fourteenth century to the late sixteenth century.
A. Morrie Craig +2 more
doaj +1 more source
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.
Colin Crews
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A Simple LC–MS Method for the Quantitation of Alkaloids in Endophyte-Infected Perennial Ryegrass
The rapid identification and quantitation of alkaloids produced by Epichloë endophyte-infected pasture grass is important for the agricultural industry.
Simone Vassiliadis +5 more
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Ergot Alkaloids Produced by Endophytic Fungi of the Genus Epichloë
The development of fungal endophytes of the genus Epichloë in grasses results in the production of different groups of alkaloids, whose mechanism and biological spectrum of toxicity can differ considerably.
Philippe Guerre
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Fungal endophytes of the genus Epichloë live symbiotically in cool season grass species and can produce alkaloids toxic to insects and vertebrates, yet reports of intoxication of grazing animals have been rare in Europe in contrast to overseas.
Jochen Krauss +5 more
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