Results 1 to 10 of about 497 (146)

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, David L. Harmon, James L. Klotz   +2 more
doaj   +5 more sources

Risks for animal health related to the presence of ergot alkaloids in feed [PDF]

EFSA Journal
The European Commission requested EFSA to provide an update of the 2012 Scientific Opinion of the Panel on Contaminants in the Food Chain (CONTAM) on the risks for animal health related to the presence of ergot alkaloids (EAs) in feed.
EFSA Panel on Contaminants in the Food Chain (CONTAM), Dieter Schrenk, Margherita Bignami, Laurent Bodin, James Kevin Chipman, Jesús delMazo, Bettina Grasl‐Kraupp, Christer Hogstrand, Jean‐Charles Leblanc, Carlo Stefano Nebbia, Elsa Nielsen, Evangelia Ntzani, Annette Petersen, Salomon Sand, Tanja Schwerdtle, Christiane Vleminckx, Heather Wallace, Jürgen Gropp, Patrick Mulder, Isabelle P. Oswald, Ruud Woutersen, Jose Ángel Gómez Ruiz, Elena Rovesti, Laurentius (Ron) Hoogenboom   +23 more
doaj   +3 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   +2 more sources

Morphological, Molecular, and Alkaloid Gene Profiling of Epichloë Endophytes in Elymus cylindricus and Elymus tangutorum from China [PDF]

Microorganisms
Epichloë 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, Wencong Liu, Kai Huang, Gensheng Bao, Chunjie Li   +4 more
doaj   +2 more sources

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, Priyanka Reddy, Joanne Hemsworth, German C. Spangenberg, Kathryn M. Guthridge, Simone J. Rochfort   +5 more
doaj   +2 more sources

Hepatic transcript profiling in beef cattle: Effects of feeding endophyte-infected tall fescue seeds. [PDF]

PLoS ONE
The 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, Valentino Palombo, MariaSilvia D'Andrea, Wenqi Cao, Yue Zhang, Jonathan E Beever, Russell B Muntifering, Wilmer J Pacheco, Soren P Rodning, Xu Wang, Sonia J Moisá   +10 more
doaj   +2 more sources

Effect of Quebracho Tannin (Schinopsis quebracho-colorado (Schltdl.) F.A. Barkley and T. Meyer) on Silage Nutritive Value, Ergovaline Concentration, and Fermentation Parameters of Tall Fescue (Schedonorus arundinaceus (Shreb.) Dumort) with Two Dry-Matter Levels

Agronomy, 2023
Tall fescue (Schedonorus arundinaceus (Shreb.) Dumort) is a cool-season forage grown in the mid-south United States of America that has the potential for spring silage. Ergovaline produced by the fungal endophyte Neotyphodium coenophialum is preserved in
Ally J. Grote, Christine C. Nieman, Ivan R. Thomas Jr., Kenneth P. Coffey, James P. Muir, James L. Klotz   +5 more
doaj   +1 more source

Genetic Manipulation of the Ergot Alkaloid Pathway in Epichloë festucae var. lolii and Its Effect on Black Beetle Feeding Deterrence

Toxins, 2021
Epichloë endophytes are filamentous fungi (family Clavicipitaceae) that live in symbiotic associations with grasses in the sub family Poöideae. In New Zealand, E. festucae var.
Debbie Hudson, Wade Mace, Alison Popay, Joanne Jensen, Catherine McKenzie, Catherine Cameron, Richard Johnson   +6 more
doaj   +1 more source

Plant interactions and ergovaline concentration in mixture of Lotus tenuis and Schedonorus arundinaceus infected with the fungus Epichloë coenophiala

Ecología Austral, 2020
Schedonorus arundinaceus (tall fescue) population can be infected by the endophyte fungus Epichloë coenophiala, responsible of livestock intoxication due to fungal alkaloids (i.e., ergovaline).
Lucas R. Petigrosso, Matías García, Osvaldo Vignolio, Adriana Salvat, Diego Cristos, Jorge Castaño   +5 more
doaj   +1 more source

The Known Antimammalian and Insecticidal Alkaloids Are Not Responsible for the Antifungal Activity of Epichloë Endophytes

Plants, 2021
Asexual Epichloë sp. endophytes in association with pasture grasses produce agronomically important alkaloids (e.g., lolitrem B, epoxy-janthitrems, ergovaline, peramine, and lolines) that exhibit toxicity to grazing mammals and/or insect pests.
Krishni Fernando, Priyanka Reddy, Simone Vassiliadis, German C. Spangenberg, Simone J. Rochfort, Kathryn M. Guthridge   +5 more
doaj   +1 more source