Host-Tree Monoterpenes and Biosynthesis of Aggregation Pheromones in the Bark Beetle Ips paraconfusus
Joint Authors
Birgersson, Göran
Byers, John A.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-16
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
A paradigm developed in the 1970s that Ips bark beetles biosynthesize their aggregation pheromone components ipsenol and ipsdienol by hydroxylating myrcene, a host tree monoterpene.
Similarly, host α-pinene was hydroxylated to a third pheromone component cis-verbenol.
In 1990, however, we reported that amounts of ipsenol and ipsdienol produced by male Ips paraconfusus (Coleoptera: Scolytinae) feeding in five host pine species were nearly the same, even though no detectable myrcene precursor was detected in one of these pines (Pinus sabiniana).
Subsequent research showed ipsenol and ipsdienol are also biosynthesized from smaller precursors such as acetate and mevalonate, and this de novo pathway is the major one, while host tree myrcene conversion by the beetle is the minor one.
We report concentrations of myrcene, α-pinene and other major monoterpenes in five pine hosts (Pinus ponderosa, P.
lambertiana, P.
jeffreyi, P.
sabiniana, and P.
contorta) of I.
paraconfusus.
A scheme for biosynthesis of ipsdienol and ipsenol from myrcene and possible metabolites such as ipsenone is presented.
Mass spectra and quantities of ipsenone are reported and its possible role in biosynthesis of aggregation pheromone.
Coevolution of bark beetles and host trees is discussed in relation to pheromone biosynthesis, host plant selection/suitability, and plant resistance.
American Psychological Association (APA)
Byers, John A.& Birgersson, Göran. 2012. Host-Tree Monoterpenes and Biosynthesis of Aggregation Pheromones in the Bark Beetle Ips paraconfusus. Psyche،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-479826
Modern Language Association (MLA)
Byers, John A.& Birgersson, Göran. Host-Tree Monoterpenes and Biosynthesis of Aggregation Pheromones in the Bark Beetle Ips paraconfusus. Psyche No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-479826
American Medical Association (AMA)
Byers, John A.& Birgersson, Göran. Host-Tree Monoterpenes and Biosynthesis of Aggregation Pheromones in the Bark Beetle Ips paraconfusus. Psyche. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-479826
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-479826