Results 151 to 160 of about 11,970 (214)

Ecdysone signaling-induced dumpless1 expression controls nurse cell dumping in Drosophila oogenesis. [PDF]

open access: yesNat Commun
Li J   +8 more
europepmc   +1 more source

Biosynthesis of ecdysone and ecdysone phosphates in spinach

open access: yesPhytochemistry, 1994
Abstract The polar ecdysteroid conjugate, ecdysone phosphate (2β,3β,14α,22R,25-pentahydroxy-7-en-6-one-3- phosphate) was identified in excised first leaves of spinach, where it is endogenously produced during 20- hydroxyecdysone biosynthesis. Radiolabelled [14C]ecdysone phosphate was isolated from several excised leaf assays and was hydrolysed with ...
John H Adler, Robert J Grebenok
exaly   +3 more sources
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Ecdysone metabolism: Ecdysone dehydrogenase‐isomerase

Lipids, 1974
AbstractAn enzyme system that converts α‐ecdysone to its hormonally less active 3α‐epimer was detected only in the midgut of the tobacco hornworm,Manduca sexta (L.). This system appears to be specific for the ecdysones and may represent a metabolic control point for regulating molting hormone activity.
H. N. Nigg   +5 more
openaire   +2 more sources

Conversion of α-Ecdysone to β-Ecdysone by Crustaceans and Insects

Nature, 1969
SINCE Karlson1 isolated α-ecdysone from silkworm pupae, other workers have isolated and identified three more ecdysones—β-ecdysone (crustecdysone)2, 26-hydroxy-β-ecdysone3 and 2-deoxy-β-ecdysone4—in extracts of insects and crustaceans. Additional types of ecdysones will probably be described when other species of arthropods are closely examined, as ...
D S, King, J B, Siddall
openaire   +2 more sources

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