Satellite Symposium 5: Molecular Breeding
Archived
This content is available here strictly for research, reference, and/or recordkeeping and as such it may not be fully accessible. If you work or study at University of Kentucky and would like to request an accessible version, please use the SensusAccess Document Converter.
Publication Date
2005
Location
Dublin Ireland
Description
Tall fescue [Festuca arundinacea (Schreb.)=Lolium arundinaceum (Schreb.) S.J. Darbyshire] infected (E+) by its fungal endophyte [(Neotyphodium coenphialum Morgan-Jones & Gams.) Glenn, Bacon & Hanlin] often shows greater persistence during summer drought than endophyte-free (E-) plants (Malinowski et al., 2005). Survival of the apical meristem and growing zone of vegetative tillers likely involves biochemical adaptations whose benefits to the host are enhanced by endophyte presence. Antioxidant enzymes may scavenge free radicals during heat and drought, and thereby reduce membrane damage. Their roles in endophyte-mediated drought tolerance in tall fescue have not been tested. Our objective was to determine the endophyte influence on antioxidant enzyme activities, membrane leakage, and tiller survival in tall fescue during water deficit.
Citation
West, C. P.; Carson, R. D.; Guerber, C. A.; and de los Reyes, B., "Endophyte Effects on Antioxidants and Membrane Leakage in Tall Fescue During Drought" (2005). IGC Proceedings (1985-2023). 58.
(URL: https://uknowledge.uky.edu/igc/20/satellitesymposium5/58)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Endophyte Effects on Antioxidants and Membrane Leakage in Tall Fescue During Drought
Dublin Ireland
Tall fescue [Festuca arundinacea (Schreb.)=Lolium arundinaceum (Schreb.) S.J. Darbyshire] infected (E+) by its fungal endophyte [(Neotyphodium coenphialum Morgan-Jones & Gams.) Glenn, Bacon & Hanlin] often shows greater persistence during summer drought than endophyte-free (E-) plants (Malinowski et al., 2005). Survival of the apical meristem and growing zone of vegetative tillers likely involves biochemical adaptations whose benefits to the host are enhanced by endophyte presence. Antioxidant enzymes may scavenge free radicals during heat and drought, and thereby reduce membrane damage. Their roles in endophyte-mediated drought tolerance in tall fescue have not been tested. Our objective was to determine the endophyte influence on antioxidant enzyme activities, membrane leakage, and tiller survival in tall fescue during water deficit.
