Insect antifeedant furanocoumarins from Tetradium daniellii.
The dried fruits of Tetradium daniellii yielded a new linear furanocoumarin, 5-(6-hydroxy-3,7-dimethylocta-2,7-dienyloxy)psoralen, together with six other structurally related furanocoumarins. A similar chemical profile was recorded by HPLC analysis of a fragment of T. daniellii fruit obtained from an historic herbarium voucher specimen collected in September 1917 during an expedition to Yunnan province, China. Four of the compounds identified caused a potent feeding deterrent effect towards larvae of Spodoptera littoralis and Heliothis virescens.
Stevenson
Philip C
PC
Royal Botanic Gardens, Richmond, Kew, Surrey TW9 3AB, UK.
Simmonds
Monique S J
MS
Yule
Marianne A
MA
Veitch
Nigel C
NC
Kite
Geoffrey C
GC
Irwin
Dianne
D
Legg
Mike
M
D000818:Animals; D002851:Chromatography, High Pressure Liquid; D005247:Feeding Behavior / Q000187:drug effects*; D005638:Fruit / Q000737:chemistry; D011564:Furocoumarins / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects / Q000254:growth & development; D007915:Lepidoptera / Q000187:drug effects* / Q000502:physiology; D019906:Nuclear Magnetic Resonance, Biomolecular; D027821:Rutaceae / Q000737:chemistry*
D011564:Furocoumarins