Results 31 to 40 of about 765 (189)

Determining the earliest growth stage to detect the presence of endophytes in tall fescue and perennial ryegrass seedlings using molecular markers

open access: yesGrassland Research, Volume 2, Issue 2, Page 106-111, June 2023., 2023
Many forage grasses have a beneficial fungus living inside them. The presence of this fungus is a necessity to many producers. Knowing when and how to test for it has been a problem in the past. Here, we compare different methods of fungal testing and different time points that will help producers make testing decisions. Abstract Background Tall fescue
Kendall Lee   +4 more
wiley   +1 more source

Elevated atmospheric CO2 suppresses silicon accumulation and exacerbates endophyte reductions in plant phosphorus

open access: yesFunctional Ecology, Volume 37, Issue 6, Page 1567-1579, June 2023., 2023
Read the free Plain Language Summary for this article on the Journal blog. Abstract Many temperate grasses are both hyper‐accumulators of silicon (Si) and hosts of Epichloë fungal endophytes, functional traits which may alleviate environmental stresses such as herbivore attack.
Scott N. Johnson   +6 more
wiley   +1 more source

Clover frost‐seeding rate effects on productivity and nutritive value of tall fescue pastures during the year of establishment

open access: yesCrop Science, Volume 62, Issue 3, Page 1394-1403, May/June 2022., 2022
Abstract Frost seeding is a low‐cost effective strategy to introduce legumes into existing perennial pastures; however, it has been deemed unreliable in the upper southeast USA. We evaluated frost seeding planting rate effects of clover (Trifolium spp.) during the year of establishment on productivity and nutritive value of clover‐tall fescue [Festuca ...
Miguel S. Castillo   +2 more
wiley   +1 more source

Ergot alkaloids in New Zealand pastures and their impact

open access: yesNew Zealand Journal of Agricultural Research, Volume 65, Issue 1, Page 1-41, February 2022., 2022
ABSTRACT In identifying endophytes for use in pastures in New Zealand there have been two strategies used, either exclusion of ergopeptine and lolitrem alkaloids or, retaining some ergopeptine expression to enhance the stability of natural defences against invertebrate pests. Both have their strengths and weaknesses.
John R. Caradus   +6 more
wiley   +1 more source

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

Non-Invasive Techniques Reveal Heifer Response to Fescue Endophyte Type in Grazing Studies

open access: yesAnimals, 2023
Cattle grazing tall fescue (Schedonorus arundinaceous) infected with wild-type endophytes (WE) leads to a syndrome commonly known as fescue toxicosis. Replacing WE tall fescue with a novel endophyte-infected (NE) tall fescue can mitigate this problem but
Sanjok Poudel   +3 more
doaj   +1 more source

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