Results 11 to 20 of about 948 (186)

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

A Complex Ergovaline Gene Cluster in Epichloë Endophytes of Grasses [PDF]

Applied and Environmental Microbiology, 2007
ABSTRACT Clavicipitaceous fungal endophytes of the genera Epichloë and Neotyphodium form symbioses with grasses of the subfamily Pooideae, in which they can synthesize an array of bioprotective alkaloids. Some strains produce the ergopeptine alkaloid ergovaline, which is implicated
Damien J, Fleetwood, Barry, Scott, Geoffrey A, Lane, Aiko, Tanaka, Richard D, Johnson   +4 more
openaire   +3 more sources

Toxicokinetics of ergovaline in the horse after an intravenous administration [PDF]

Veterinary Research, 2001
The toxicokinetics of ergovaline (an ergopeptine mycotoxin present in some grasses infected with endophytic fungus of the genus Neotyphodium) were studied after intravenous administration of a single dose of 15 microg/kg bwt in four gelding horses. Plasma ergovaline concentrations were measured by high performance liquid chromatography, and the kinetic
Bony, Sylvie, Durix, Andrée, Leblond, Agnès, Jaussaud, Philippe   +3 more
openaire   +7 more sources

Interaction Among Microbiota, Chemical Composition, and Quality Variations in Coffea arabica Across Altitudinal Gradients During Wet Processing [PDF]

Food Science &Nutrition, Volume 14, Issue 8, August 2026.
Fermentation significantly altered the dominant bacterial genera from Sphingomonas and Pleomorphomonas (before fermentation) to Weissella and Lactobacillus (after fermentation), while Cladosporium and Fusarium remained the dominant fungal genera. Notably, non‐volatile compounds in de‐pulping coffee beans and volatile compounds of roasted coffee beans ...
Xiaojing Shen, Yamei Wu, Qi Wang, Wenhua Chen, Bintao Peng, Surui Lu, Ying Yang, Kunyi Liu, Jilai Zhang   +8 more
wiley   +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

Duration of ergovaline exposure influences serotonin-mediated vasoactivity of bovine mesenteric vasculature [PDF]

Journal of Animal Science, 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 ...
Ronald J Trotta, David L Harmon, Huihua Ji, James L Klotz   +3 more
openaire   +3 more sources

Association of serotonin and ergot alkaloids on tissue partitioning and contractile response of bovine blood vessels() [PDF]

Curr Res Toxicol
Ergot alkaloids can bind serotonin (5-HT) receptors interfering with many physiological functions. However, the mechanism has not been completely established.
May, John, Harmon, David L., Trotta, Ronald J., Valente, Eriton E.L., Klotz, James L., Ji, Huihua, Valente, Eriton E. L.   +6 more
core   +2 more sources

Ergovaline in populations of endophyte infected Festuca rubra subsp. pruimosa. [PDF]

, 2006
Festuca rubra subsp. pruinosa is a grass whose preferred habitat are coastal cliffs, a harsh environment where plants grow in cavities and are exposed to salt water spray. This grass species is systemically infected by the fungal endophyte Epichloë festucae and the interaction is asymptomatic.
Vázquez de Aldana, Beatriz R., Zabalgogeazcoa, Iñigo, García Ciudad, Antonia, García Criado, Balbino   +3 more
openaire   +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