• instar
  • Hormone treatment of V instar females committed to enter diapause prevented the reproductive diapause of the subsequent adults, but treatment of older V instar females committed to develop ovaries had no effect on subsequent adult egg production and offspring survival. (oregonstate.edu)
  • conifers
  • The cause was found to be hormones found in the native balsam fir tree (Abies balsamea) used to manufacture paper and related products in America, and in some other North American conifers. (wikipedia.org)
  • nuclear
  • EcR and USP share the multi-domain architecture common to all nuclear hormone receptors, namely an N-terminal transcriptional activation domain (A/B domain), a DNA-binding domain (C domain, highly conserved between receptors), a linker region (D region), a ligand-binding domain (E domain, moderately conserved), and in some cases a distinct C-terminal extension (F-domain). (wikipedia.org)
  • instars
  • Third, IV, and V instars responded differently to topical treatments of synthetic juvenile hormone. (oregonstate.edu)
  • A 5.0 μg dosage of hormone was more lethal to III instars than IV and V instars, but a larger dosage of hormone was required to produce morphological abnormalities in III instars than in older nymphs. (oregonstate.edu)
  • The adult emergence of most IV instars was prevented by a hormone dosage of 0. (oregonstate.edu)
  • 50 μg Morphological abnormalities were produced when young V instars (less than 3 days) were treated with hormone but older V instars (greater than 8 days) molted to normal adults even when they were treated with large dosages of hormone. (oregonstate.edu)
  • titers
  • JHDK displays a Km in the nanomolar range for JH I diol, which is appropriate for an enzyme responsible for clearance of a hormone whose titers rarely exceeds 10 nM. (wikipedia.org)
  • females
  • The viability of eggs from gravid females which were treated topically with only 0.001 μg of hormone was reduced by 22%, but larger dosages (up to 5.0 μg) had little additional effect. (oregonstate.edu)
  • Females in diapause were topically treated with a small dose (1.0 μg)of synthetic juvenile hormone to observe the effect of the hormone on survival and ovarial development. (oregonstate.edu)
  • Laboratory tests were designed to study the effects of synthetic juvenile hormone on the mating activity of males and females in diapause. (oregonstate.edu)
  • When these females were treated with synthetic juvenile hormone, they mated after they had initiated ovarial development. (oregonstate.edu)
  • Remating behavior in Anastrepha fraterculus (Diptera: Tephritidae) females is affected by male juvenile hormone analog treatment but not by male sterilization. (biomedsearch.com)
  • diapause
  • Males in diapause did not mate readily unless they had been treated with synthetic juvenile hormone. (oregonstate.edu)
  • Additional laboratory experiments showed that the hormone stimulated the mating behavior of males in diapause but had no effect on the growth of testes or the rate of increase of mature sperm bundles in the testes. (oregonstate.edu)
  • adult
  • In the corn earworm Helicoverpa zea yolk deposition in oocytes begins 8-10 h after adult eclosion and is controlled by juvenile hormone (JH). (eurekamag.com)
  • The juvenile forms closely resemble adults, but are smaller and lack adult features such as wings and genitalia. (wikipedia.org)
  • action
  • Although much attention has been given to understanding the mechanisms of action for both of these hormones, currently a great deal more is known about signaling by ecdysone than by JH. (mdpi.com)
  • role
  • To study the role of exciplexes in the E/Z isomerizartion of isolated double bonds in the juvenile hormone, 74, the unsymmetrically terminated analog 92 and the dihydro analog 93 were synthesized. (oregonstate.edu)