Individual variation in the amounts of pheromone components in the male bean bug, Riptortus pedestris (Heteroptera: Alydidae) and its attractiveness to the same species
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概要
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The individual variation of R. pedestris males and females in their attractiveness to the same species and the amounts of five pheromone components were examined in field experiments and GC-MS analysis, respectively. The number of adults attracted by a single male varied greatly among the individuals tested. The number of adults attracted was 0.92±0.12 (mean±SE/day). Of 64 males examined individually, four attracted three or more adults per day, while 12 males attracted only 0.5 adults or fewer per day and 14 individuals attracted no adults. The five pheromone components also differed greatly among those males. As for tetradecyl isobutyrate (14:iBu), which is thought to be an essential component of the pheromone, it was apparently detected from 46 males while eight had only a low amount of 14:iBu and ten had no 14:iBu. Some of the males had 14:iBu without having (E)-2-hexenyl (E)-2-hexenoate (E2-6:E2Hx) and (E)-2-hexenyl (Z)-3-hexenoate (E2-6:Z3Hx), which are synergistic components of the pheromone, and the rest had E2-6:E2Hx and/or E2-6:Z3Hx without having 14:iBu. The amount of 14:iBu or octadecyl isobutyrate (the fourth pheromone component) showed a positive and significant co-relationship with the number of attracted adults. Males with a well-developed fat-body tended to have more 14:iBu and to attract more adults than those with an undeveloped fat-body. Most of the females tested individually did not attract conspecific adults, and had only (E)-2-hexenyl hexanoate, the fifth component of the pheromone.
- 日本応用動物昆虫学会の論文
- 2007-11-25
著者
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Yamaguchi Takuhiro
National Agricultural Res. Center (narc)
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Yamaguchi Takuhiro
National Agricultural Research Center (narc)
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YASUDA Tetsuya
National Agricultural Research Center
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MIZUTANI Nobuo
National Agricultural Research Center (NARC)
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MORIYA Seiichi
National Agricultural Research Center (NARC)
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Moriya S
National Agricultural Research Center (narc)
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Moriya Seiichi
National Agricultural Research Center
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Yasuda Tetsuya
National Agricultural Research Center (narc)
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