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. 1990 Apr;16(4):1385-97.
doi: 10.1007/BF01021034.

Conversion of verbenols to verbenone by yeasts isolated fromDendroctonus ponderosae (Coleoptera: Scolytidae)

D W Hunt  1 , J H Borden
Affiliations

Conversion of verbenols to verbenone by yeasts isolated fromDendroctonus ponderosae (Coleoptera: Scolytidae)

D W Hunt et al. J Chem Ecol. 1990 Apr.

Abstract

A variety of symbionts associated with bark beetles are capable of producing compounds that are used as pheromones by their hosts. We report that two yeasts associated withDendroctonus ponderosae Hopkins,Hansenula capsulata Wickerham, andPichiapinus (Hoist) Phaff, are capable of convertingcis- andtrans-verbenol efficiently into verbenone.trans-Verbenol, which is produced by femaleD. ponderosae, acts as an aggregation pheromone for this scolytid, while verbenone, which other studies have indicated that microbe-reducedD. ponderosae are incapable of producing, acts as an antiaggregation pheromone.D. ponderosae appears to rely primarily on microbial symbionts for terminating aggregation and mass attack on individual host trees.

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