Results 31 to 40 of about 2,204 (167)

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

Toxins, 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, Jeferson M. Lourenco, Mikayla M. Dycus, Jessica M. Carpenter, Garret Suen, Nicholas S. Hill, Nikolay M. Filipov   +6 more
doaj   +2 more sources

Use of Integrative Interactomics for Improvement of Farm Animal Health and Welfare: An Example with Fescue Toxicosis [PDF]

Toxins, 2020
Rapid scientific advances are increasing our understanding of the way complex biological interactions integrate to maintain homeostatic balance and how seemingly small, localized perturbations can lead to systemic effects.
Ryan S. Mote, Nikolay M. Filipov
doaj   +2 more sources

Hongos endófitos en festuca alta: del problema a las soluciones [PDF]

RIA: Revista Investigaciones Agropecuarias, 2019
Festuca alta, Schedonorus arundinaceus (Schreb.) Dumort, es una de las gramíneas perennes templadas más sembradas en Argentina, tanto en pasturas puras como en mezclas.
L.R. PETIGROSSO, P.E. GUNDEL, Mabel COLABELLI, O.N. FERNANDEZ, S.G. ASSUERO   +4 more
doaj   +3 more sources

Respuesta a la frecuencia de defoliación de plantas de festuca alta de una población naturalizada infectada con endófito silvestre y un cultivar comercial libre [PDF]

RIA: Revista Investigaciones Agropecuarias, 2020
El objetivo del presente trabajo fue evaluar el efecto de dos frecuencias de defoliación sobre el crecimiento vegetativo y reproductivo de plantas de festuca alta provenientes de semilla cosechada en una población naturalizada e infectada con Epichloë ...
L.R. PETIGROSSO, Diego NAVARRO, S.G. ASSUERO, O.R. VIGNOLIO, Jorge CASTAÑO, Mabel COLABELLI   +5 more
doaj   +2 more sources

Phosphorus source and Epichloë coenophiala strain interact over time to modify tall fescue rhizosphere microbial community structure and function

, 2021
Symbiosis between the fungal endophyte Epichloe coenophiala naturally found in the cool season grass tall fescue (Lolium arundinacea (Schreb) Darbysh.) is thought to provide a competitive advantage over endophyte-free grasses when grown under nutrient ...
N. Ding, Haichao Guo, Joseph V. Kupper, D. McNear   +3 more
semanticscholar   +1 more source

Silicon and Epichloë‐endophyte defences in a model temperate grass diminish feeding efficiency and immunity of an insect folivore

Functional Ecology, Volume 37, Issue 12, Page 3177-3192, December 2023., 2023
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plants deploy diverse anti‐herbivore defences which reduce feeding and performance of herbivores. Temperate grasses use silicon (Si) accumulation and Epichloë‐endophytes for physical and chemical (i.e. endophytic‐alkaloids) defence against insect herbivores.
X. Cibils‐Stewart, R. Putra, T. Islam, D. J. Fanna, R. Wuhrer, W. J. Mace, S. E. Hartley, A. J. Popay, S. N. Johnson   +8 more
wiley   +1 more source

Increased abundance and productivity of a grassland bird after experimental control of invasive tall fescue

Restoration Ecology, Volume 30, Issue 8, November 2022., 2022
Tall fescue (Schedonorus arundinaceus) is a widespread invasive grass in the United States that degrades habitat quality for biodiversity. Herbicide followed by seeding of native plants reduces tall fescue and is predicted to restore habitat quality over time, but little is known about short‐term (1–2 year) impacts on native species.
Jaime J. Coon, Scott B. Maresh Nelson, Iris A. Bradley, Katherine E. Rola, James R. Miller   +4 more
wiley   +1 more source

Epichloë endophytes alter inducible indirect defences in host grasses. [PDF]

PLoS ONE, 2014
Epichloë endophytes are common symbionts living asymptomatically in pooid grasses and may provide chemical defences against herbivorous insects. While the mechanisms underlying these fungal defences have been well studied, it remains unknown whether ...
Tao Li, James D Blande, Pedro E Gundel, Marjo Helander, Kari Saikkonen   +4 more
doaj   +1 more source

Ergot alkaloids in New Zealand pastures and their impact

New 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, Stuart D. Card, Sarah C. Finch, David E. Hume, Linda J. Johnson, Wade J. Mace, Alison J. Popay   +6 more
wiley   +1 more source

Risks for animal health related to the presence of ergot alkaloids in feed. [PDF]

EFSA J
Abstract 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. EAs are produced by several fungi of the Claviceps and Epichloë genera.
EFSA Panel on Contaminants in the Food Chain (CONTAM), Schrenk D, Bignami M, Bodin L, Chipman JK, Del Mazo J, Grasl-Kraupp B, Hogstrand C, Leblanc JC, Nebbia CS, Nielsen E, Ntzani E, Petersen A, Sand S, Schwerdtle T, Vleminckx C, Wallace H, Gropp J, Mulder P, Oswald IP, Woutersen R, Gómez Ruiz JÁ, Rovesti E, Hoogenboom LR.   +23 more
europepmc   +2 more sources