Influence of Prolonged Serotonin and Ergovaline Pre-Exposure on Vasoconstriction Ex Vivo [PDF]
Toxins, 2021 Ergot alkaloid mycotoxins interfere in many functions associated with serotonergic neurotransmitters. Therefore, the objective was to evaluate whether the association of serotonin (5-hydroxytryptamine, 5-HT) and ergot alkaloids during a 24 h pre ...
Eriton E. L. Valente +2 more
doaj +8 more sources
Ergovaline Stability in Tall Fescue Based on Sample Handling and Storage Methods [PDF]
Frontiers in Chemistry, 2014 Ergovaline is an ergot alkaloid produced by the endophyte Neotyphodium coenophialum (Morgan-Jones and Gams) found in tall fescue (Schedonorus arundinacea (Schreb.) Dumort.) and blamed for a multitude of livestock disorders.
Krista La Moen Lea +4 more
doaj +7 more sources
Using On-Farm Monitoring of Ergovaline and Tall Fescue Composition for Horse Pasture Management [PDF]
Toxins, 2021 Central Kentucky horse pastures contain significant populations of tall fescue (Schedonorus arundinacea (Schreb.) Dumort) infected with an endophyte (Epichloë coenophialum (Morgan-Jones and Gams) Bacon and Schardl) known to produce several ergot ...
Krista La Moen Lea, S. Ray Smith
doaj +5 more sources
Tall fescue seed extraction and partial purification of ergot alkaloids [PDF]
Frontiers in Chemistry, 2014 Many substances in the tall fescue/endophyte association (Schedonorus arundinaceus/Epichloë coenophiala) have biological activity. Of these compounds only the ergot alkaloids are known to have significant mammalian toxicity and the predominant ergot ...
Lowell eBush
doaj +4 more sources
Duration of ergovaline exposure influences serotonin-mediated vasoactivity of bovine mesenteric vasculature. [PDF]
J Anim Sci, 2023 Abstract Ergovaline (ERV), produced in toxic endophyte-infected tall fescue, causes potent vasoconstriction of bovine peripheral and visceral vasculature. Ergovaline acts as both an agonist and an antagonist in bovine gut blood vessels through serotonin (5-HT) receptors and it appears that the type of action could be influenced by the ...
Trotta RJ, Harmon DL, Ji H, Klotz JL.
europepmc +3 more sources
Morphological, Molecular, and Alkaloid Gene Profiling of Epichloë Endophytes in Elymus cylindricus and Elymus tangutorum from China [PDF]
MicroorganismsEpichloë endophytes are mutualistic associates with grasses, conferring host plants with enhanced competitiveness, improved stress tolerance, and increased ecological dominance. Epichloë can produce any of several classes of bioactive alkaloids, of which
Taixiang Chen +4 more
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Quantitation and Distribution of Epichloë-Derived Alkaloids in Perennial Ryegrass Tissues [PDF]
Metabolites, 2023 Perennial ryegrass (Lolium perenne L.), an economically important pasture and turf grass, is commonly infected with asexual Epichloë species endophytes. Endophytes provide enhanced bioprotection by producing alkaloids, and research often focusses on the ...
Simone Vassiliadis +5 more
doaj +2 more sources
Vasoactivity and Vasoconstriction Changes in Cattle Related to Time off Toxic Endophyte-Infected Tall Fescue [PDF]
Toxins, 2016 Previous research has indicated that serotonergic and α-adrenergic receptors in peripheral vasculature are affected by exposure of cattle grazing toxic endophyte-infected (E+; Epichlöe coenophialia) tall fescue (Lolium arundinaceum).
James L. Klotz +7 more
doaj +4 more sources
Hepatic transcript profiling in beef cattle: Effects of feeding endophyte-infected tall fescue seeds. [PDF]
PLoS ONEThe objective of our study was to evaluate the effect of endophyte-infected tall fescue (E+) seeds intake on liver tissue transcriptome in growing Angus × Simmental steers and heifers through RNA-seq analysis.
Gastón F Alfaro +10 more
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OCCURRENCE OF Neotyphodium AND Epichloë FUNGI IN MEADOW FESCUE AND RED FESCUE IN POLAND AND SCREENING OF ENDOPHYTE ISOLATES AS POTENTIAL BIOLOGICAL CONTROL AGENTS [PDF]
Acta Scientiarum Polonorum: Hortorum Cultus, 2013 Neotyphodium and Epichloë endophytes often influence beneficially on the host plant. Thus, could be used as a biological factor enhancing grass growth and resistance to stress factors.
Dariusz Pańka +2 more
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