Effects of exogenous ecdysteroids on reproduction in crickets, Gryllus bimaculatus

Adult field crickets, Gryllus bimaculatus, with a low endogenous moulting hormone titre (animals reared at constant 20°C) were injected with ecdysone and 20-hydroxyecdysone. Repeated injections of 2–5 μg/female caused an increase in ovarian fresh weight and stimulated oviposition. The response to exogenous moulting hormones was shown to be dose dependent. In adult males injections of moulting hormones as well as ringer solution lowered the total number of spermatophores.

[1]  K. Hoffmann,et al.  Free ecdysteroids in adult male crickets, Gryllus bimaculatus , 1982 .

[2]  K. Hoffmann,et al.  Effects of a daily temperature cycle on ecdysteroid and cyclic nucleotide titres in adult female crickets, Gryllus bimaculatus , 1981 .

[3]  S. Tobe,et al.  Control of the Corpora Allata During a Reproductive Cycle in a Viviparous Cockroach , 1981 .

[4]  A. Loof,et al.  EFFECT OF ECDYSTERONE ON VITELLOGENIN CONCENTRATION IN HAEMOLYMPH OF MALE AND FEMALE SARCOPHAGA BULLATA , 1981 .

[5]  E. Hentschel.  INVESTIGATIONS ON CATECHOLAMINE INTEGRATED INFLUENCES ON REPRODUCTION IN PERIPLANETA AMERICANA (L.) , 1981 .

[6]  T. Briers,et al.  Induction of denovo synthesis of vitellogenin in adult male sarcophaga-bullata (insecta, diptera) by 20-hydroxy-ecdysone , 1981 .

[7]  A. Leloup.  About the Endocrine Control of Spermatogenesis in Insects , 1981 .

[8]  J. Postlethwait,et al.  The Regulation of yolk polypeptide synthesis in Drosophila ovaries and fat body by 20-hydroxyecdysone and a juvenile hormone analog. , 1980, Developmental biology.

[9]  S. Tobe,et al.  Feedback Control of Juvenile Hormone Synthesis in Cockroaches: Possible Role for Ecdysterone , 1980, Science.

[10]  H. Jäckle,et al.  Hormonal control of vitellogenin synthesis in Oncopeltus fasciatus , 1980 .

[11]  J. B. Dumser.  In vitro effects of ecdysterone on the spermatogonial cell cycle in Locusta. , 1980 .

[12]  H. Imboden,et al.  Ecdysteroids and juvenile hormone during embryogenesis in the ovoviviparous cockroach Nauphoeta cinerea. , 1978, General and comparative endocrinology.

[13]  K. Bowler,et al.  The effect of temperature on development and the histology of the neuroendocrine system of the tettigoniid, Jamaicana flava (Caudell) , 1977 .

[14]  M. Lagueux,et al.  Dynamics of ecdysone metabolism after ingestion and injection in Locusta migratoria. , 1976, General and comparative endocrinology.

[15]  W. S. Herman,et al.  Ecdysterone antagonism, mimicry, and synergism of juvenile hormone action on the Monarch butterfly reproductive tract , 1976 .

[16]  J. Nowock.  Induction of imaginal differentiation by ecdysone in the testes of Ephestia kühniella , 1972 .

[17]  M. Kambysellis,et al.  IN VITRO DEVELOPMENT OF INSECT TISSUES. II. THE ROLE OF ECDYSONE IN THE SPERMATOGENESIS OF SILKWORMS , 1971 .

[18]  M. J. Thompson,et al.  Inhibition of Larval Development and Egg Production in the Boll Weevil Following Ingestion of Ecdysone Analogues , 1970 .

[19]  M. J. Thompson,et al.  Ecdysones and synthetic analogs: Molting hormone activity and inhibitive effects on insect growth, metamorphosis and reproduction. , 1970, Steroids.