Open AccessPlant and endophyte genotype affects peramine concentrations in ryegrass/endophyte associations
Author(s) -
L. R. Fletcher,
Syd Easton,
Alison J. Popay,
B.A. Tapper,
D. E. Hume
Publication year - 2006
Publication title -
grassland research and practice series
Language(s) - English
Resource type - Journals
eISSN - 2463-4751
pISSN - 0110-8581
DOI - 10.33584/rps.12.2006.3019
Subject(s) - endophyte , perennial plant , cultivar , genotype , biology , host (biology) , pasture , poaceae , agronomy , botany , gene , ecology , genetics
Peramine concentrations in a range of ryegrass/ AR1 endophyte associations have been measured during pre-market safety testing. While concentrations for diploid perennial ryegrass cultivars were in excess of 15ppm a small number of associations were below 10ppm. These proved to be tetraploid ryegrass. When assessing the effectiveness of a ryegrass/AR1 association to deter ASW, and other invertebrate pasture pests, the host ryegrass cultivar or genotype and consequent peramine concentrations need to be taken into consideration.