ISSN:
1573-1561
Keywords:
Conophthorus coniperda
;
white pine cone beetle
;
Scolytidae
;
pheromone
;
pityol
;
2-(1-hydroxy-1-methylethyl)-5-methyltetrahydrofuran
;
(E)-7-methyl-1,6-dioxaspiro[4.5]decane
;
spiroacetal
;
chiral analysis
;
walking bioassay
;
traps
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
Abstract Female white pine cone beetles,Conophthorus coniperda, attacking second-year cones of eastern white pine,Pinus strobus L., produced a sex-specific pheromone that attracted conspecific males in laboratory bioassays and to field traps. Beetle response was enhanced by host monoterpenes. The female-produced compound was identified in volatiles collected on Porapak Q and in hindgut extracts as (+)-trans-pityol, (2R,5S)-(+)-2-(1-hydroxy-1-methylethyl)-5-methyltetrahydrofuran. Males and females produced and released the (E)-(-)-spiroacetal, (5S,7S)-(-)-7-methyl-1,6-dioxaspiro[4.5]decane, which was not an attractant for either sex, but acted as a repellent for males. Porapak Q-trapped volatiles from both sexes contained (+)-trans-pinocarveol and (-)-myrtenol. In addition, hindgut extracts of females containedtrans-verbenol, while males had pinocarvone and verbenone. Work in Georgia and Canada confirmed that the same isomers of pityol and spiroacetal are present in two distinct and widely separated populations ofC. coniperda.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02036648
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