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Life Sciences Commons

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Plant Sciences

University of Kentucky

2014

Ergot alkaloids and ergovaline

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Ergovaline Stability In Tall Fescue Based On Sample Handling And Storage Methods, Krista La Moen Lea, Lori Smith, Cynthia Gaskill, Robert Coleman, S. Ray Smith Sep 2014

Ergovaline Stability In Tall Fescue Based On Sample Handling And Storage Methods, Krista La Moen Lea, Lori Smith, Cynthia Gaskill, Robert Coleman, S. Ray Smith

Plant and Soil Sciences Faculty Publications

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. The objective of this study was to determine the effect of sample handling and storage on the stability of ergovaline in tall fescue samples. Fresh tall fescue was collected from a horse farm in central Kentucky at three harvest dates and transported on ice to the University of Kentucky Veterinary Diagnostic Laboratory. Plant material was frozen in liquid …


Tall Fescue Ergovaline Concentration Based On Sample Handling And Storage Method, Krista La Moen Lea Jan 2014

Tall Fescue Ergovaline Concentration Based On Sample Handling And Storage Method, Krista La Moen Lea

Theses and Dissertations--Plant and Soil Sciences

Ergovaline is produced by the endophyte Neotyphodium coenophialum (Morgan-Jones and Gams) in tall fescue (Schedonorus arundinacea (Schreb.) Dumort. = Festuca arundinacea Schreb.) and is blamed for a multitude of costly livestock disorders. Testing of pastures is common in both research and on farm situations. Since ergovaline is known to be unstable and affected by many variables, the objective of this study was to determine the effect of sample handling and storage on the stability of this compound. Homogeneous milled tall fescue sub-samples were analyzed for ergovaline concentration using HPLC after a range of sample handling procedures or storage. Ergovaline …