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Abstract Using pure phytoecdysteroids isolated from Ajuga iva (L.) Schreber (Lamiales: Lamiaceae) and Silene nutans L… Expand Makisterone A, a 28-carbon ecdysteroid (molting hormone) has been isolated from the ovaries of queen bees. Analysis by reversed… Expand Many aspects in caste polyphenism result from hormonally controlled differential gene expression. A DDRT-PCR screen for… Expand Inhibition of the binding of [3H]ponasterone A ([3H]PoA) by ecdysone agonists including diacylhydrazines such as RH-5849… Expand Salivary gland degeneration in ixodid ticks is triggered by an ecdysteroid hormone. We used [3H]ponasterone A (PoA) as a specific… Expand Spodoptera frugiperda cells are the hosts of wild type and recombinant virus in the baculovirus insect cell expression system… Expand Five phytoecdysteroids were isolated from the seeds of D. glaucescens and identified by spectrometric methods (1H-NMR, 13C-NMR… Expand Third-stage larvae of the swine parasitic roundworm, Ascaris suum, were grown in stationary multiwell cultures in the presence of… Expand Ring glands or brain-ring gland complexes from third-instar Drosophila melanogaster larvae secreted ecdysone [(22R)-2beta,3beta… Expand Makisterone A is the predominant ecdysone in the 96 +/- 4-hour-old embryo of the large milkweed bug and it is the first molting… Expand