Results 41 to 50 of about 948 (186)

Perennial Ryegrass Alkaloids Increase Respiration Rate and Decrease Plasma Prolactin in Merino Sheep under Both Thermoneutral and Mild Heat Conditions

Toxins, 2019
A study was undertaken to determine the effects of feeding two levels of perennial ryegrass alkaloids (nil vs. moderate) under two climatic conditions. Alkaloids were fed via endophyte-infected perennial ryegrass seed and hay.
Michelle L. E. Henry, Stuart Kemp, Iain J. Clarke, Frank R. Dunshea, Brian J. Leury   +4 more
doaj   +1 more source

Exposure to Ergot Alkaloids During Gestation Reduces Fetal Growth in Sheep

Frontiers in Chemistry, 2014
Tall fescue [Lolium arundinaceum (Schreb.) Darbysh; Schedonorus phoenix (Scop.) Holub] is the primary cool season perennial grass in the eastern U.S. Most tall fescue contains an endophyte (Neotyphodium coenophialum), which produces ergot alkaloids that ...
Susan Kay Duckett, Scott L Pratt, John Glen Andrae   +2 more
doaj   +1 more source

Correlation of Ergovaline and Lolitrem B Levels in Endophyte-Infected Perennial Ryegrass (Lolium Perenne)

, 2001
The varieties of perennial ryegrass ( Lolium perenne) infected with the endophytic fungus Neotiphodium lolii contain several classes of toxic alkaloids, including ergopeptide alkaloids and lolitrem alkaloids. Lolitrem B, a potent tremorgen, is generally
A. Morrie Craig, Jeannette T. Hovermale
core   +1 more source

Effects of red clover isoflavones on tall fescue seed fermentation and microbial populations in vitro. [PDF]

PLoS ONE, 2018
Negative impacts of endophyte-infected Lolium arundinaceum (Darbyshire) (tall fescue) are responsible for over $2 billion in losses to livestock producers annually.
Emily A Melchior, Jason K Smith, Liesel G Schneider, J Travis Mulliniks, Gary E Bates, Zachary D McFarlane, Michael D Flythe, James L Klotz, Jack P Goodman, Huihua Ji, Phillip R Myer   +10 more
doaj   +1 more source

Vasoactivity and Vasoconstriction Changes in Cattle Related to Time off Toxic Endophyte-Infected Tall Fescue

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, Glen E. Aiken, Jessica R. Bussard, Andrew P. Foote, David L. Harmon, Ben M. Goff, F. Neal Schrick, James R. Strickland   +7 more
doaj   +1 more source

Early Contributions Leading to Understanding the Significance of Epichloë Endophyte in Temperate Grasses

New Zealand Journal of Agricultural Research, Volume 69, Issue 5, October 2026.
The role and use of Epichloë fungal endophytes in grazed temperate grass pastures and turf grasses are now well understood with regard to balancing pasture persistence while minimising animal health and welfare concerns. However, this understanding has only emerged since the early 1980s. Prior to this, although links between Epichloë endophytes, animal
John R. Caradus, Alan V. Stewart, Katrin G. Hewitt   +2 more
wiley   +1 more source

Feeding Tall Fescue Seed during Mid and Late Gestation Influences Subsequent Postnatal Growth, Puberty, and Carcass Quality of Offspring

Animals, 2020
Weaned lambs (n = 82), born to ewes fed endophyte-free (E−) or endophyte-infected (E+; 1.77 mg hd−1 d−1 ergovaline + ergovalinine) tall fescue seed from d 35 to 85 of gestation (MID) and/or d 86 of gestation to parturition (LATE), were used to examine ...
Maslyn A. Greene, Jessica L. Britt, J. Keith Bertrand, James L. Klotz, William Bridges, John G. Andrae, Susan K. Duckett   +6 more
doaj   +1 more source

Variation in the expression of ergot alkaloids between individual tillers of perennial ryegrass

Frontiers in Chemistry, 2014
Epichloë fungal endophytes of cool season grasses are well known to produce a range of alkaloids of benefit to the host. Some of these compounds are advantageous to agriculture due to qualities that promote pasture persistence (e.g.
Wade Jeffray Mace, Kristy eLunn, Catherine eLloyd-West   +2 more
doaj   +1 more source

Bovine neuronal vesicular glutamate transporter activity is inhibited by ergovaline and other ergopeptines [PDF]

Journal of Dairy Science, 2011
l-Glutamate (Glu) is a major excitatory neurotransmitter responsible for neurotransmission in the vertebrate central nervous system. Vesicular Glu transporters VGLUT1 and VGLUT2 concentrate (50mM) Glu [Michaelis constant (measuring affinity), or K(m),=1 to 4mM] into synaptic vesicles (SV) for subsequent release into the synaptic cleft of glutamatergic ...
Y, Xue, S F, Liao, J R, Strickland, J A, Boling, J C, Matthews   +4 more
openaire   +2 more sources

Relationships between the genetic distance of Epichloë festucae isolates and the ergovaline and peramine contents of their Festuca rubra hosts

, 2010
In semiarid grasslands of western Spain, plants of Festuca rubra are frequently infected by Epichloë festucae, an endophyte capable of producing the alkaloids ergovaline, toxic to mammals, and peramine, toxic to insects. The objectives of this paper were
García Criado, Balbino, Rubio de Casas, R., Zabalgogeazcoa, Iñigo, García Ciudad, Antonia, Vázquez de Aldana, Beatriz R., R. Rubio de Casas, I. Zabalgogeazcoa, A. García-Ciudad, B. García-Criado, B.R. Vázquez-de-Aldana   +9 more
core   +1 more source