Isolation of feeding deterrents against argentine stem weevil from ryegrass infected with the endophyteAcremonium loliae
- 1 March 1986
- journal article
- research article
- Published by Springer Nature in Journal of Chemical Ecology
- Vol. 12 (3), 647-658
- https://doi.org/10.1007/bf01012099
Abstract
Infection of ryegrass (Lolium perenne) by an endophytic fungus (Acremonium loliae) confers resistance against the Argentine stem weevil (Listronotus bonariensis). Extracts from ryegrass clones, infected and uninfected withA. loliae, were compared in a feeding choice bioassay, and several fractions were identified which affected stem weevil feeding behavior. One stem weevil feeding deterrent, peramine C12H17N5O, has been isolated from infected ryegrass and partially characterized as a basic indole derivative. Extracts from culturedA. loliae had no effect on stem weevil feeding behavior nor was peramine detected in the fungal cultures examined. Peramine and the other active substances are hydrophilic in contrast to the lipophilic properties reported for the neurotoxic lolitrems also isolated from ryegrass infected withA. loliae and associated with causing ryegrass staggers disorder in livestock. It is suggested that ryegrass staggers and stem weevil feeding deterrency may arise by different biochemical mechanisms.Keywords
This publication has 13 references indexed in Scilit:
- Rapid determination of the neurotoxin lolitrem B in perennial ryegrass by high-performance liquid chromatography with fluorescence detectionJournal of Chromatography A, 1985
- Letter to the editorNew Zealand Veterinary Journal, 1984
- Tremorgenic neurotoxins from perennial ryegrass causing ryegrass staggers disorder of livestock: structure elucidation of lolitrem BJournal of the Chemical Society, Chemical Communications, 1984
- Tremorgenic mycotoxins from Penicillium crustosum: isolation of penitrems A–F and the structure elucidation and absolute configuration of penitrem AJournal of the Chemical Society, Perkin Transactions 1, 1983
- Ryegrass Staggers: The Presence of Lolitrem Neurotoxins in Perennial Ryegrass SeedNew Zealand Veterinary Journal, 1982
- Argentine stem weevil(hyperodes bonariensiskuschel) resistance in perennial and hybrid ryegrassesNew Zealand Journal of Agricultural Research, 1982
- Ryegrass Staggers: Isolation of Potent Neurotoxins Lolitrem a and Lolitrem B From Staggers-Producing PasturesNew Zealand Veterinary Journal, 1981
- An Association of a Lolium Endophyte with Ryegrass StaggersNew Zealand Veterinary Journal, 1981
- The role of fungal tremorgens in ryegrass staggersNew Zealand Journal of Agricultural Research, 1977
- Ryegrass staggersNew Zealand Veterinary Journal, 1959