Open AccessDifferential expression of loline alkaloids in perennial ryegrass infected with endophyte isolated from tall fescue
Author(s) -
H. S. Easton,
T.B. Lyons,
Wade J. Mace,
Wayne R. Simpson,
Anouck C. M. de Bonth,
B.M. Cooper,
K.A. Panckhurst
Publication year - 2007
Publication title -
grassland research and practice series
Language(s) - English
Resource type - Journals
eISSN - 2463-4751
pISSN - 0110-8581
DOI - 10.33584/rps.13.2006.3077
Subject(s) - endophyte , neotyphodium , perennial plant , epichloë , biology , host (biology) , inoculation , botany , symbiosis , agronomy , horticulture , lolium perenne , bacteria , genetics
Twenty half-sibling families of perennial ryegrass inoculated with a strain of endophyte isolated from tall fescue were analysed for loline concentrations. Inoculation success varied between families. Frequency of loline expression of different families varied moderately. Family effect on loline concentrations was significant. In another set of material, derived from plants exposed to field selection, endophyte infection frequency in seed harvested from plants verified as infected was close to 100%. Loline concentrations varied significantly between families. For nine of 23 families, none of the three plants sampled showed any measurable loline. As in other data sets, the results show variation in concentrations of endophyte alkaloids controlled by the genetics of the host plant. Keywords: Neotyphodium, host variation, adaptation, symbiosis, lolines