Results 61 to 70 of about 497 (146)

Stability and purity of selected ryegrass Epichloë endophytes in New Zealand dairy pastures

Grassland Research, Volume 3, Issue 2, Page 113-122, June 2024.
Ryegrass tiller sampling is performed to determine Epichloë fungal endophyte infection and strain of Epichloë, to ensure that sown selected endophytes are delivering pasture production, animal health, and productivity benefits for New Zealand dairy farmers.
David E. Hume, Dongwen Luo, Grant M. Rennie, Warren M. King, Anna L. Taylor, Marty J. Faville, Katherine N. Tozer   +6 more
wiley   +1 more source

OCCURRENCE OF Neotyphodium AND Epichloë FUNGI IN MEADOW FESCUE AND RED FESCUE IN POLAND AND SCREENING OF ENDOPHYTE ISOLATES AS POTENTIAL BIOLOGICAL CONTROL AGENTS

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, Małgorzata Jeske, Mikołaj Troczyński   +2 more
doaj  

Neotyphodium / Epichloë ENDOPHYTES OF PERENNIAL RYEGRASS, MEADOW FESCUE AND RED FESCUE CULTIVARS CULTIVATED IN POLAND

Acta Scientiarum Polonorum: Hortorum Cultus, 2011
Grasses are very often infected by endophytic fungi of the Neotyphodium and Epichloë genera. They can produce metabolites toxic to livestock as well as beneficially affect grasses. Thus, endophytes can be used for plants improvement.
Dariusz Pańka
doaj  

226 Serotonin stimulates relaxation in ovine saphenous vein precontracted with ergovaline [PDF]

J Anim Sci
Abstract The predominant ergot alkaloid found in wild type endophyte-infected tall fescue grass is ergovaline. Ergovaline is a potent vasoconstrictor in livestock that consume it. Previous research has shown that ergovaline can bind serotonin (5-HT) receptors and blood vessels exposed to ergovaline become unresponsive to subsequent 5-HT ...
Klotz, James L, Duckett, Susan K, Checura, Celina M   +2 more
europepmc   +2 more sources

Vasoconstrictive Responses by the Carotid and Auricular Arteries in goats to Ergot Alkaloid Exposure

Frontiers in Chemistry, 2014
A fungal endophyte (Neotyphodium coenophialum) infects most plants of ‘Kentucky 31’ tall fescue (Lolium arundinaceum) and produces ergot alkaloids that cause persistent constriction of the vascular system in grazing livestock.
Glen Eris Aiken, Michael F. Flythe
doaj   +1 more source

Development of a methodology to measure the effect of ergot alkaloids on forestomach motility using real-time wireless telemetry

Frontiers in Chemistry, 2014
The objectives of these experiments were to characterize rumen motility patterns of cattle fed once daily using a real-time wireless telemetry system, determine when to measure rumen motility with this system, and determine the effect of ruminal dosing ...
Amanda Marie Egert, James Levi Klotz, Kyle R McLeod, David L Harmon   +3 more
doaj   +1 more source

Interaction of isoflavones and endophyte-infected tall fescue seed extract on vasoactivity of bovine mesenteric vasculature

Frontiers in Nutrition, 2015
It was hypothesized that isoflavones may attenuate ergot alkaloid-induced vasoconstriction and possibly alleviate diminished contractility of vasculature after exposure to ergot alkaloids.
Yang eJia, David L Harmon, Michael D. Flythe, James Levi Klotz   +3 more
doaj   +1 more source

Occurrence of ergovaline in endophyte infected grasses from mediterranean grasslands.

, 2000
We are grateful to J.e. Estévez and M. Hernández for technical assistance. Ergovaline standard sample was generously provided by Dr. Forrest Smith, Auburn University. This work was financed by the Spanish "Comisión Interministerial de Ciencia y Tecnología" (CICYT, project AGF96-0423) and "Junta de Castilla y León" (project CSI3/ 98).
Vázquez de Aldana, Beatriz R., García Criado, Balbino, Zabalgogeazcoa, Iñigo, García Ciudad, Antonia   +3 more
openaire   +3 more sources

Comparison of ergovaline determinations between laboratories in the United States and Japan

NZGA: Research and Practice Series, 2007
Quality assurance and quality control is the foundation of any diagnostic test. The two laboratories in the United States that use HPLC to quantitate endophyte toxins in tall fescue (Festuca arundinacea) and perennial ryegrass (Lolium perenne) are Oregon State University (OSU) and University of Missouri (MU).
Morrie Craig, G. Rottinghaus, K. Walker, E. Ishikuro   +3 more
openaire   +2 more sources

423 Ergovaline and Additional Mycotoxins in Tall Fescue.

Journal of Animal Science, 2018
P Gott, E Hendel, K Lea, S Smith, U Hofstetter-Schahs, K Robbins, G Murugesan   +6 more
openaire   +2 more sources