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Pho Toperiodic Regulation of Insect and Molluscan Hormones Pho toperiodic regulation of insect and molluscan hormones Ciba Foundation symposium 104 1984 Pitman London The Ciba Foundation is an international scientific and educational charity. It was established in 1947 by the Swiss chemical and pharmaceutical company of CIBA Limited-now CIBA-GEIGY Limited. The Foundation operates independently in London under English trust law. The Ciba Foundation exists to promote international cooperation in biological, medical and chemical research. It organizes about eight international multidisciplinary symposia each year on topics that seem ready for discussion by a small group of research workers. The papers and discussions are published in the Ciba Foundation symposium series. The Foundation also holds many shorter meetings (not published), organized by the Foundation itself or by outside scientific organizations. The staff always welcome suggestions for future meetings. The Foundation’s house at 41 Portland Place, London WIN 4BN, provides facilities for all the meetings. Its library, open seven days a week to any graduate in science or medicine, also provides information on scientific meetings throughout the world and answers general enquiries on biomedical and chemical subjects. Scientists from any part of the world may stay in the house during working visits to London. Photoperiodic regulation of insect and molluscan hormones Pho toperiodic regulation of insect and molluscan hormones Ciba Foundation symposium 104 1984 Pitman London 0 Ciba Foundation 1984 ISBN 0 272 79751 0 Published in April 1984 by Pitman Publishing Ltd, 128 Long Acre, London WC2E 9AN, UK Distributed in North America by CIBA Pharmaceutical Company (Medical Education Division), P.O. Box 12832, Newark, NJ 07101, USA Suggested series entry for library catalogues: Ciba Foundation symposia Ciba Foundation symposium 104 viii + 298 pages, 77 figures, 4 tables British Library Cataloguing in publication data: Photoperiodic regulation of insect and molluscan hormones.-(CIBA Foundation symposium; no. 104) 1. Photoperiodism 2. Insects-Physiology I. Porter, Ruth 11. Collins, Geralyn M. 111. Series 595.7'019153 QL495 Printed in Great Britain at The Pitman Press, Bath Contents Symposium on Photoperiodic regulation of insect and molluscan hormones, held at the Ciba Foundation, London, 12-14 July 1983 Editors: Ruth Porter (Organizer) and Geralyn M. Collins W. MORDUE Chairman’s opening remarks 1 D. S. SAUNDERS Introduction: the links between ‘wet’ and ‘dry’ physiology 2 S. MASAKI Unity and diversity in insect photoperiodism 7 Discussion 19 C. S. PITTENDRIGH, J. ELLIOTT and T. TAKAMURA The circadian component in photoperiodic induction 26 Discussion 41 A. VEERMAN and M. VAZ NUNES Photoperiod reception in spider mites: photoreceptor, clock and counter 48 Discussion 59 D. S. SAUNDERS and H. BRADLEY Long-night summation and pro- gramming of pupal diapause in the flesh-fly, Sarcophaga argyrostoma 65 Discussion 84 GENERAL DISCUSSION Effect of temperature on the photoperiodic clock in Megoura viciae 90, Long- and short-day effects on diapause induction in Pyrrhocoris apterus 91 P. LANKINEN and J. LUMME Genetic analysis of geographical variation in photoperiodic diapause and pupal eclosion rhythm in Drosophila littoralis 97 . Discussion 109 T. L. PAGE Neuronal organization of a circadian clock in the cockroach Leucophaea maderae 115 Discussion 131 V vi CONTENTS H. ISHIZAKI, A. MIZOGUCHI and M. FUJISHITA Circadian-clock control of hormone secretion in Samia Cynthia ricini 136 Discussion 145 C. G. H. STEEL and E. J. AMPLEFORD Circadian control of haemolymph ecdysteroid titres and the ecdysis rhythm in Rhodnius prolixus 150 Discussion 163 B. ROBERTS Photoperiodic regulation of prothoracicotropic hormone release in late larval, prepupal and pupal stages of Sarcophaga bullata 170 Discussion 182 P. G. SOKOLOVE, E. J. McCRONE, J. VAN MINNEN and W. C. DUNCAN Reproductive endocrinology and photoperiodism in a terres- trial slug 189 Discussion 199 J. JOOSSE Photoperiodicity, rhythmicity and endocrinology of reproduc- tion in the snail Lymnaea stagnalis 204 Discussion 217 J. W. TRUMAN Physiological aspects of the two oscillators that regulate the timing of eclosion in moths 221 Discussion 232 J. HARDIE A hormonal basis for the photoperiodic control of polymorph- ism in aphids 240 Discussion 253 G. M. CHIPPENDALE Environmental signals, the neuroendocrine sys- tem, and the regulation of larval diapause in the southwestern corn borer, Diatraea grandiosella 259 Discussion 270 CONCLUDING GENERAL DISCUSSION Models, hormone titres and clocks 277, Concluding comments 280 Index of contributors 287 Subject index 288 Participants M. F. BOWEN Department of Biology, University of North Carolina at Chapel Hill, Wilson Hall 046A, Chapel Hill, North Carolina 27514, USA H. BRADLEY Parasitology Unit, Department of Zoology, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT, UK J. BRADY Department of Pure and Applied Biology, Imperial College at Silwood Park, Ascot, Berkshire SL5 7PY, UK G. M. CHIPPENDALE Department of Entomology, 1-87 Agriculture Building, University of Missouri-Columbia, Columbia, Missouri 65211, USA D. L. DENLINGER Department of Entomology, The Ohio State Uni- versity, 1735 Neil Avenue, Columbus, Ohio 43210, USA H-J. FERENZ Fachbereich Biologie (7), University of Oldenburg, Post- fach 25 03, D-2900 Oldenburg, Federal Republic of Germany J. M. GIEBULTOWICZ Department of Zoology, University of Washing- ton, Seattle, Washington 98195, USA L. I. GILBERT Department of Biology, The University of North Carolina at Chapel Hill, Wilson Hall 046A, Chapel Hill, North Carolina 27514, USA G. J. GOLDSWORTHY Department of Zoology, University of Hull, Hull HU6 7RX, UK J. HARDIE ARC Insect Physiology Group, Department of Pure and Applied Biology, Imperial College at Silwood Park, Ascot, Berkshire SL5 7PY, UK M. HODKOVA Institute of Entomology, Czechoslovak Academy of Science, Vinicna 7, 128 00 Prague 2, Czechoslovakia vii ... Vlll PARTICIPANTS H. ISHIZAKI Biological Institute, Faculty of Science, Nagoya University, Furocho, Chikusa-ku, Nagoya, Japan J. JOOSSE Biological Laboratory, Vrije Universiteit, De Boelelaan 1087, PO Box 7161, 1007 MC Amsterdam, The Netherlands P. LANKINEN Department of Genetics, University of Oulu, Linnanmaa, SF 90570, Oulu 57, Finland A. D. LEES Department of Pure and Applied Biology, Imperial College at Silwood Park, Ascot, Berkshire SL5 7PY, UK S. MASAKI Laboratory of Entomology, Faculty of Agriculture, Hirosaki University, Hirosaki 036, Aomori, Japan W. MORDUE (Chairman) Department of Zoology, University of Aber- deen, Tillydrone Avenue, Aberdeen AB9 2TN, UK T. L. PAGE Department of General Biology, Vanderbilt University, Nashville, Tennessee 37235, USA C. S. PITTENDRIGH Hopkins Marine Station, Stanford University, Pacific Grove, California 93950, USA S. E. REYNOLDS School of Biological Sciences, University of Bath, Claverton Down, Bath BA2 7AY, UK B. ROBERTS Department of Zoology, Monash University, Clayton, Vic- toria 3168. Australia D. S. SAUNDERS Department of Zoology, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT, UK P. G. SOKOLOVE Department of Biological Sciences, University of Maryland Baltimore County (UMBC), 5401 Wilkens Avenue, Catonsville, Maryland 21228, USA C. G. H. STEEL Department of Biology, York University, 4700 Keele Street, Downsview, Ontario M3J 1P3, Canada J. W. TRUMAN Department of Zoology, NJ-15, University of Washing- ton, Seattle, Washington 98195, USA A. VEERMAN Laboratory of Experimental Entomology, University of Amsterdam, Kruislaan 302, 1098 SM Amsterdam, The Netherlands Chairman’s introduction WILLIAM MORDUE Department of Zoology, University of Aberdeen, Tillydrone Avenue, Aberdeen AB9 2 TN, UK 1984 Photoperiodic regulation of insect and molluscan hormones. Pitman, London (Ciba Founda- tion symposium 104), p I The participants at this symposium are an intriguing mix of people, with similar research problems which are being approached in very different ways. The idea behind this meeting, suggested initially by David Saunders, was to bring together people working on insect or molluscan photoperiodic clocks and on hormones to see if we could find any common ground. Several people here work in both areas, but most of us are at one or other end of the spectrum. I hope that we can find some common points of synthesis as we hear about work on circadian and photoperiodic rhythms in insects, arachnids (mites) and molluscs. Perhaps we can in the next few days become even closer in our understanding of the interface between perception of environmental cues, in this case photoperiodic changes, and the initiation or the inhibition of an endocrine-controlled event. The transduction mechanism between perception of the stimuli and a change in an endocrine-controlled event is, for me, a particular fascination. For most of the organisms that we shall be considering, the only real manifestation that we have available to indicate that the animal has perceived a photoperiodic response is some developmental or physiological event that we can monitor. My own work tends to be on neurosecretions but I shall try to set an example, as a good chairman should, of not being preoccupied only with my own particular interests, so that we can hope to see some gelling together of the two major aspects of this symposium. 1 Introduction: the links between ‘wet’ and ‘dry’ physiology DAVID S. SAUNDERS Department of Zoology, University of Edinburgh, West Mains Road, Edinburgh, EH9 ZJT, UK 1984 Photoperiodic regulation of insect
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