Results 11 to 20 of about 439 (114)
Abstract Biological control is a promising approach to reduce plant diseases caused by nematodes to ensure high productivity in agricultural production. Large‐scale analyses of genetic variation in fungal species used for biocontrol can generate knowledge regarding interaction mechanisms that can improve efficacy of biocontrol applications.
Mudassir Iqbal+9 more
wiley +1 more source
Ergovaline stability in tall fescue based on sample handling and storage methods [PDF]
Ergovaline is an ergot alkaloid produced by the endophyte Neotyphodium coenophialum (Morgan-Jones and Gams) found in tall fescue [Schedonorus arundinacea (Schreb.) Dumort.] and blamed for a multitude of livestock disorders. Ergovaline is known to be unstable and affected by many variables.
Lori Smith+4 more
openaire +4 more sources
Do plant secondary metabolite‐containing forages influence soil processes in pasture systems?
Abstract Grazed pastures are susceptible to N loss from urine/manure additions, which increases eutrophication, affecting the global N cycle. Plant secondary metabolites (PSM), such as condensed tannins (CT) and terpenes, influence silviculture soil dynamics by generally decreasing N mineralization. We investigated whether cattle‐grazed pastures of non‐
Andrea K. Clemensen+5 more
wiley +1 more source
In this study, we addressed the question how insect oviposition preference reflects larval performance in a satyrine butterfly when the host plant harbors a fungal endophyte. Against predictions, we found no clear association between oviposition preference and larval performance.
Miika Laihonen+3 more
wiley +1 more source
Ergovaline, an endophytic alkaloid. 1. Animal physiology and metabolism [PDF]
Ergovaline is an ergot alkaloid found in some endophyte-infected ryegrasses and it has been implicated in the expression of ergotism-like symptoms of grazing livestock, as well as in the protection of the plant against invertebrate predation and abiotic stresses. These selection pressures have resulted in a conflict between the needs of the pasture for
A. M. Nicol, James L. Klotz
openaire +2 more sources
Biological Flora of the British Isles: Poa nemoralis
Wood Meadow‐grass is a characteristic grass of temperate, deciduous ancient woodlands across large parts of the British Isles and elsewhere in its Eurasian range, as well as in secondary habitats such as hedgerows. Although shade‐tolerant, light availability is key to its survival and reproductive ecology, critically affecting flower induction, seed ...
Jan Plue+11 more
wiley +1 more source
Determination of ergovaline in tall fescue by a specific monoclonal antibody [PDF]
A monoclonal antibody (EV5B3) was developed using a conjugate of ergovaline and bovine serum albumin linked at the indole N(1) of the ergovaline molecule. This resulted in an antibody specific for the distal cyclol peptide moiety of ergovaline. As a result the antibody was specific for ergot peptide alkaloids having an isopropyl group at the C(5 ...
Forrest Smith+3 more
openaire +2 more sources
Variability of Ergovaline and Total Ergot Alkaloid Expression among Endophytic Tall Fescue Cultivars
ABSTRACT Tall fescue (Lolium arundinaceum [Schreb.] Darbysh.) is one of the most widely grown grasses in the United States. Most plants are infected with an endophyte, Epichloë coenophiala Bacon and Schardl. This endophyte produces high concentrations of ergot alkaloids, which cause fescue toxicosis in livestock. The economic losses to the US livestock
S. Leanne Dillard+2 more
wiley +1 more source
ABSTRACT Ruminant livestock production is the greatest source of agricultural greenhouse gas (GHG) production, largely due to enteric methane (CH4) emissions. While the optimised feed rations used in confinement dairy and beef finishing operations can reduce CH4 emissions of individual animals compared with cattle on forage diets, the profitability of ...
Jennifer W. MacAdam+12 more
wiley +1 more source
Herbivore‐specific induction of defence metabolites in a grass–endophyte association
Lay Summary Summary Plants have developed a variety of defence strategies against herbivores. One possible strategy is the induced production of metabolites following herbivore attack. Plant‐associated micro‐organisms can be the source of such defensive compounds.
Benjamin Fuchs+4 more
wiley +1 more source