Reference

Metabolism of 3H-

Metabolism of 3H-.alpha.-ecdysone in Gryllus bimaculatus during the eighth larval instar. Wildmann, H.; Romer, F. (Inst. Allg. Zool., Johannes Gutenberg Univ., Mainz, Ger.). J. Insect Physiol., 23(3), 343-9 (English) 1977. CODEN: JIPHAF. DOCUMENT TYPE: Journal CA Section: 2 (Hormone Pharmacology) Following injection of .alpha.-ecdysone [3604-87-3] (150 ng, 1 .mu.Ci) into the body cavity of 8th larval instar G. bimaculatus, 3 more polar, and 2 less polar metabolites in addn. to .beta.-ecdysone [5289-74-7] were isolated from the animals and their excrement. During this period of development predominant metabolites on the 3rd, 4th, and 5th days were one of the less polar metabolites, .alpha.-ecdysone, and .beta.-ecdysone resp.

Effect of hormones and inhibitors of macromolecular synthesis on the follicle cells of Rhodnius

Effect of hormones and inhibitors of macromolecular synthesis on the follicle cells of Rhodnius. Abu-Hakima, Randa; Davey, K. G. (Dep. Biol., York Univ., Downsview, Ont., Can.). J. Insect Physiol., 23(7), 913-17 (English) 1977. CODEN: JIPHAF. DOCUMENT TYPE: Journal CA Section: 12 (Nonmammalian Biochemistry) The response of the follicle cells of R. prolixus to C18 juvenile hormone (JH) (10-4 .mu.g/mL) in vitro was independent of de novo macromol. synthesis as shown by the failure of actinomycin D and puromycin to inhibit the response at any but the highest concns. employed (.ltoreq.100 .mu.g/mL). C18JH was a more effective gonadotropin than C16JH in this in vitro study. Neither Me palmitate [112-39-0] (10-7-10-4M) nor ecdysone [3604-87-3] (10-6M) mimicked or antagonized the action of JH on the follicle cells, in vitro. Follicle cells of ovaries removed from allatectomized mated females failed to respond to C16JH and ecdysone in vitro.