Abstract：
:Nine-day-old decapitated females injected with different doses of Hez-PBAN produced significantly less pheromone than 1-day-old individuals, suggesting that the age-related decline in the pheromone titre of Choristoneura fumiferana and C. rosaceana virgin females was primarily the result of a reduced ability of the glands to produce pheromone. In C. fumiferana, lower pheromonotropic activity of the Br-SEG may also contribute to the pheromone decline with age but not in C. rosaceana, as the pheromonotropic activity of the Br-SEG remained constant throughout the females' life. In both Choristoneura species, mating also suppressed pheromone production (pheromonostasis) after 24 h. The Br-SEG of mated females contained PBAN but there was no indication that its concentration changed with time post-mating since Br-SEG homogenates obtained from different-aged mated females showed the same level of pheromonotropic activity in both Choristoneura species. However, as observed in virgins, pheromone glands of older mated females were less sensitive to PBAN than those of younger ones. This suggests that the probability of Choristoneura females to attract a second mate may decrease with an increase in the refractory period following the first mating.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
Delisle J,Simard Jdoi
10.1016/s0022-1910(02)00252-4keywords:
subject
Has Abstractpub_date
2003-01-01 00:00:00pages
91-7issue
1eissn
0022-1910issn
1879-1611pii
S0022191002002524journal_volume
49pub_type
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2010-05-01 00:00:00
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pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2009-06-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2010-03-01 00:00:00
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pub_type： 杂志文章,评审
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journal_title：Journal of insect physiology
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