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Related to ecdysone: juvenile hormone


A steroid hormone produced by insects and crustaceans that promotes growth and controls molting.




(Zoology) a hormone secreted by the prothoracic gland of insects that controls ecdysis and stimulates metamorphosis
[C20: from German ecdyson, from Greek ekdusis; see ecdysis]


(ˈɛk dəˌzoʊn, -ˌsoʊn)

an insect hormone that stimulates metamorphosis.
[1955–60; ecdys (is) + -one]
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References in periodicals archive ?
Our results indicate that levels of ecdysone were increased in the hemolymph of shell-diseased lobsters, with a medium level of expression of the disease to 89 [+ or -] 32 ng/mL (n = 76), whereas unaffected, presumably healthy ones had 57 [+ or -] 16 ng/mL (n = 210).
Programmed cell death in the Drosophila CNS is ecdysone-regulated and coupled with a specific ecdysone receptor isoform.
binding antagonistically to an ecdysone receptor) rather than a constructive interaction (i.
Patent 6,245,531, which covers genes that encode insect-based ecdysone receptors and methods for regulating gene expression in host cells.
Our results are consistent with former studies showing that the molting and pupation of larvae were blocked by virus infection via controlling host insect ecdysone levels (O'Reilly & Miller 1989; Liu et al.
RH-5849, a nonsteroidal ecdysone agonist: Effects on a Drosophila cell line.
The influence of heterodimer partner ultraspiracle/retinoid X receptor on the function of ecdysone receptor.
Other investigators have shown interplay between MF and ecdysone in other crustaceans (Laufer et al.
Rohm and Haas is contributing synthetic ecdysone receptors and proprietary ligand inducer chemistry that precisely regulates gene expression.
PO is a critical enzyme involved in insect molting indicating that it could be regulated by ecdysone.
The identified compounds belonged to three structural types: ecdysone, terpenoid and flavonoid.
Molting in decapod crustaceans is controlled by the X-organ/sinus gland complex, which is located within the eyestalks and secretes a neuropeptide, molt-inhibiting hormone (MIH), that inhibits ecdysone production by a pair of Y-organs located in the cephalothorax (reviewed in Skinner, 1985; Hopkins, 1992; Chang et al.