Results 21 to 30 of about 1,790 (189)

Pituitary genomic expression profiles of steers are altered by grazing of high vs. low endophyte-infected tall fescue forages. [PDF]

open access: yesPLoS ONE, 2017
Consumption of ergot alkaloid-containing tall fescue grass impairs several metabolic, vascular, growth, and reproductive processes in cattle, collectively producing a clinical condition known as "fescue toxicosis." Despite the apparent association ...
Qing Li   +3 more
doaj   +1 more source

Development of a genetic evaluation for hair shedding in American Angus cattle to improve thermotolerance

open access: yesGenetics Selection Evolution, 2020
Background Heat stress and fescue toxicosis caused by ingesting tall fescue infected with the endophytic fungus Epichloë coenophiala represent two of the most prevalent stressors to beef cattle in the United States and cost the beef industry millions of ...
Harly J. Durbin   +4 more
doaj   +1 more source

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

open access: yesPLoS 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   +10 more
doaj   +1 more source

Impact of Ergot Alkaloids on Female Reproduction in Domestic Livestock Species

open access: yesToxins, 2019
Fescue toxicosis is a multifaceted syndrome that elicits many negative effects on livestock consuming ergot alkaloids produced by endophyte-infected tall fescue.
Rebecca K. Poole, Daniel H. Poole
doaj   +1 more source

Metabolomics of fescue toxicosis in grazing beef steers [PDF]

open access: yesFood and Chemical Toxicology, 2017
Fescue toxicosis (FT) results from consumption of tall fescue (Lolium arundinaceum) infected with an endophyte (Epichloë coenophiala) that produces ergot alkaloids (EA), which are considered key etiological agents of FT. Decreased weight gains, hormonal imbalance, circulating cholesterol disruption, and decreased volatile fatty acid absorption suggest ...
Ryan S, Mote   +5 more
openaire   +2 more sources

Ergot Alkaloids Produced by Endophytic Fungi of the Genus Epichloë

open access: yesToxins, 2015
The development of fungal endophytes of the genus Epichloë in grasses results in the production of different groups of alkaloids, whose mechanism and biological spectrum of toxicity can differ considerably.
Philippe Guerre
doaj   +1 more source

Warming reduces tall fescue abundance but stimulates toxic alkaloid concentrations in transition zone pastures of the U.S.

open access: yesFrontiers in Chemistry, 2014
Tall fescue pastures cover extensive acreage in the eastern half of the United States and contribute to important ecosystem services, including the provisioning of forage for grazing livestock.
Rebecca Lynne Mcculley   +4 more
doaj   +1 more source

Behavioral and Physiological Alterations in Angus Steers Grazing Endophyte-Infected Toxic Fescue during Late Fall

open access: yesToxins, 2023
Fescue toxicosis is caused by grazing ergot alkaloid-producing endophyte (Epichloë coenophiala)-infected tall fescue (E+). Summer grazing of E+ leads to decreased productivity, associated impaired thermoregulation, and altered behavior.
Ignacio M. Llada   +6 more
doaj   +1 more source

BMC Microbiology / Rhodococcus erythropolis MTHt3 biotransforms ergopeptines to lysergic acid [PDF]

open access: yes, 2015
Background: Ergopeptines are a predominant class of ergot alkaloids produced by tall fescue grass endophyte Neotyphodium coenophialum or cereal pathogen Claviceps purpurea.
Apfelthaler, Elisabeth   +7 more
core   +1 more source

Asexual Epichloë Fungi—Obligate Mutualists

open access: yesEncyclopedia, 2021
Asexual Epichloë are obligate fungal mutualists that form symbiosis with many temperate grass species, providing several advantages to the host. These advantages include protection against vertebrate and invertebrate herbivores (i.e., grazing livestock ...
John R. Caradus   +4 more
doaj   +1 more source

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