Publication Date
1997
Description
Several classes of alkaloids are present in tall fescue (Festuca arundinacea Schreb.) and the tall fescue-endophyte (Neotyphodium [=Acremonium] coenophialum [Morgan-Jones and Gams] Glenn, Bacon and Hanlin comb.nov.) association. Experiments were conducted to determine the effect of the endophyte on seed germination and seedling growth and to measure the effect of host perloline concentration on endophyte development and loline accumulation. Seed germination was not altered by the presence of the endophyte. In non-stress field conditions of Ireland emergence of first leaf occurred sooner and dry weight was greater in endophyte infected seedlings than endophyte free seedlings, whereas no significant differences were observed for days to emergence, tiller number, shoot length or number of leaves between the endophyte treatments. The numbers of mycelial strands in leaf sheaths were positively associated with loline accumulation, but perloline content had no effect on the number of mycelial strands in leaf sheaths or on loline accumulation.
Citation
Bush, L P.; do Valle Ribeiro, M A.; Hogan, J; and Burruss II, P B., "Interaction of Symbiont Alkaloid Accumulation and Growth" (2024). IGC Proceedings (1997-2023). 28.
https://uknowledge.uky.edu/igc/1997/session11/28
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Interaction of Symbiont Alkaloid Accumulation and Growth
Several classes of alkaloids are present in tall fescue (Festuca arundinacea Schreb.) and the tall fescue-endophyte (Neotyphodium [=Acremonium] coenophialum [Morgan-Jones and Gams] Glenn, Bacon and Hanlin comb.nov.) association. Experiments were conducted to determine the effect of the endophyte on seed germination and seedling growth and to measure the effect of host perloline concentration on endophyte development and loline accumulation. Seed germination was not altered by the presence of the endophyte. In non-stress field conditions of Ireland emergence of first leaf occurred sooner and dry weight was greater in endophyte infected seedlings than endophyte free seedlings, whereas no significant differences were observed for days to emergence, tiller number, shoot length or number of leaves between the endophyte treatments. The numbers of mycelial strands in leaf sheaths were positively associated with loline accumulation, but perloline content had no effect on the number of mycelial strands in leaf sheaths or on loline accumulation.
