Chemical Defenses of Trifolium glanduliferum against Redlegged Earth Mite Halotydeus destructor

S.F. Wang, T.J. Ridsdill-Smith, Emilio Ghisalberti

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Trifolium glanduliferum Boiss. was resistant to redlegged earth mite, Halotydeus destructor Tucker (Acari: Penthaleidae), feeding compared with Trifolium subterraneum L. Extracts from T glanduliferum leaves, obtained with dichloromethane and methanol, acted as feeding deterrents to the redlegged earth mite. Bioassay-directed fractionation of the extracts led to the isolation of several metabolites, coumarin, alpha-and beta-ionone, linalool, medicarpin, that were shown to be deterrent in laboratory experiments. The compounds contributing to the defense of T glanduliferum were different from those influencing mite feeding on T subterraneum leaves.
Original languageEnglish
Pages (from-to)6240-6245
JournalJournal of Agricultural and Food Chemistry
Volume53
Issue number16
DOIs
Publication statusPublished - 2005

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