Interplay of JH, 20E and biogenic amines under normal and stress conditions and its effect on reproduction

Juvenile hormone (JH) and 20-hydroxyecdysone (20E) are well known to play a gonadotropic role in adult insects. In Drosophila the mechanism of reciprocal regulation of JH and 20E is shown to be responsible for their proper balance. Dopamine is a mediator in this JH and 20E interplay. A proper balanc...

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Bibliographic Details
Published in:Journal of insect physiology 2008-06, Vol.54 (6), p.902-908
Main Authors: Gruntenko, N.E., Rauschenbach, I. Yu
Format: Article
Language:English
Subjects:
20-Hydroxyecdysone
adult insects
Animals
Biogenic amines
Biogenic Monoamines - metabolism
dopamine
Drosophila
Drosophila melanogaster - physiology
ecdysone
Ecdysterone - metabolism
Female
gonadotropins
hormone metabolism
insect development
Juvenile hormone
juvenile hormones
Juvenile Hormones - metabolism
literature reviews
Oogenesis
Oviparity
oviposition
sexual reproduction
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Summary:Juvenile hormone (JH) and 20-hydroxyecdysone (20E) are well known to play a gonadotropic role in adult insects. In Drosophila the mechanism of reciprocal regulation of JH and 20E is shown to be responsible for their proper balance. Dopamine is a mediator in this JH and 20E interplay. A proper balance between JH and 20E is crucial for the normal progress of oogenesis. An imbalance of gonadotropins leads to reproductive defects: a rise in JH titre leads to oviposition arrest, a rise in 20E level, to the degradation of vitellogenic oocytes. Upon a change in the level of one of the gonadotropins, the balance is restored owing to the relative change in the titre of the other.
ISSN:0022-1910
1879-1611
DOI:10.1016/j.jinsphys.2008.04.004