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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.
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.
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.