Sex attractant pheromone from the neotropical red-shouldered stink bug, Thyanta perditor (F.)

被引:30
作者
Moraes, MCB
Millar, JG
Laumann, RA
Sujii, ER
Pires, CSS
Borges, M [1 ]
机构
[1] Embrapa Recursos Genet & Biotecnol, BR-70849970 Brasilia, DF, Brazil
[2] Univ Calif Riverside, Dept Entomol, Riverside, CA 92521 USA
关键词
sex pheromone; methyl; (2E; 4Z; 6Z)-decatrienoate; defensive compounds;
D O I
10.1007/s10886-005-5294-1
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Olfactometer bioassays showed that odors from mature Thyanta perditor males attracted females but not males. Furthermore, odors from females did not attract either sex, indicating that like other phytophagous pentatomid bugs, the males produce a sex pheromone. Attraction appeared to peak in late afternoon to evening. The headspace volatiles collected from male and female T perditor were analyzed by GC-MS and HPLC. A male-specific compound, methyl (2E,4Z,6Z)-decatrienoate (2E,4Z,6Z-10:COOMe), was identified along with a number of other compounds found in extracts from both sexes. Bioassays carried out with 2E,4Z,6Z-10:COOMe showed it was as attractive to females as the crude extract of male volatiles, suggesting that the male-produced sex pheromone consists of 2E,4Z,6Z-10:COOMe as a single component. Consecutive volatiles collections from males showed that 2E,4Z,6Z-10:COOMe began appearing in extracts from males about 9 d after the final molt, as the males became sexually mature.
引用
收藏
页码:1415 / 1427
页数:13
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