Download Advances in Insect Physiology, Vol. 19 by P. D. Evans, V. B. Wigglesworth PDF

By P. D. Evans, V. B. Wigglesworth

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Additional info for Advances in Insect Physiology, Vol. 19

Sample text

1977). Occurrence of proctolin in six orders of insects. J . Insect Physiol. 23,861-864. Brown, B. E. and Starratt, A. N. (1975). Isolation ofproctolin, a myotropicpeptide, from Periplaneta americana. J. Insect Physiol. 21,1879-1881. Chiu, A. Y . , Hunkapillar, M. , Stuart, D. , Hood, L. E. and Strumwasser, F. (1979). Neuropeptide egg-laying hormone of Aplysia: Purification and primary structure. Proc. Natl. Acad. Sci. USA 76,6656-6660. Cook. B. J. and Holman, G. M. (1979). The pharmacology of insect visceral muscle.

JH, at the opposite, suppressed ecdysterone effects (Laverdure, 1971). Ecdysterone therefore appears to play an important part in initial oocyte growth and ovariole differentiation, both processes which may be considered as metamorphosis events and are inhibited by JH. In lepidopterans, similar regulation of ovariole differentiation was shown both in vitro and in vivo in Galleria mellonella (Shibuya and Yagi, 1972) and Bombyx mori (Chatani and Ohnishi, 1976). In vitro, the growth and differentiation of oocytes, trophocytes, follicular cells and vitellarium from last instar Galleria larvae required the presence of ecdysterone, while Bombyx silkworms could not initiate ovarian development, unless the moulting gland was present; ecdysterone may replace a moulting gland when this is lacking.

W. and Starratt, A. N. (1985). In vitro inactivation of the insect neuropeptide proctolin in hemolymph from Periplaneta americana. Insect Biochem. 15,511-519. Stewart, J. , Ferreira, S. H. and Greene L. J. (1971). Bradykinin potentiating peptide PCA-Lys-Trp-Ala-Pro: an inhibitor of the pulmonary inactivation of bradykinin and conversion of angiotension I to 11. Biochem. Pharmac. 20, 1557-1567. Sullivan, R. E. (1979). A proctolin-like peptide in crab pericardial organs. J. Exp. ZOO^. 210,543-552.

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