Summary
Under constant conditions the compound eyes of the ground beetleAnthia sexguttata exhibit sensitivity changes in a very clear circadian rhythm. Usually the rhythms in both eyes in constant darkness are mutually coupled. After transection of the optic tract between the lobula and the supraesophageal ganglion the circadian rhythms of the two eyes continue without interruption, but coupling between them is abolished. Even if the entire supraesophageal ganglion is removed, leaving the optic ganglia intact, the circadian rhythms in the eyes continue without interruption independently. But the rhythm is abolished if the region of the lobula is damaged.
The experiments show thatAnthia has circadian pacemakers in the left and right optic ganglia in or close to the lobula. These pacemakers can function independently from the rest of the brain and control circadian rhythms of physiological events.
Similar content being viewed by others
References
Aschoff J (ed) (1981) Handbook of behavioral neurobiology, vol 4, Biological rhythms. Plenum Press, New York
Balkenohl M, Weber F (1982) Sind auch bei holometabolen Insekten circadiane Schrittmacher der Aktivität in den optischen Ganglien lokalisiert? Verh Dtsch Ges Allg Angew Entomol (in press)
Barlow RB jr, Chamberlain SC, Levinson JZ (1980)Limulus brain modulates the structure and function of the lateral eyes. Science 210:1037–1039
Cymborowski B (1981) Transplantation of circadian pacemaker in the house cricket,Acheta domesticus L. J Interdiscipl Cycle Res 12:133–140
Fleissner G, Fleissner G (1978) The optic nerve mediates the circadian pigment migration in the median eyes of the scorpion. Comp Biochem Physiol [A] 61:69–71
Fleissner G, Fleissner G (1982) Lokalisierung circadianer Uhren bei Skorpion und Käfer. Verh Dtsch Zool Ges (in press)
Fleissner G, Heinrichs S (1982) Neurosecretory cells in the circadian clock system of the scorpion,Androctonus australis. Cell Tissue Res 224:233–238
Handler AM, Konopka RJ (1979) Transplantation of a circadian pacemaker inDrosophila. Nature 279:236–238
Koehler WK, Fleissner G (1978) Internal desynchronization of bilaterally organized circadian oscillators in the visual system of insects. Nature 274:708–710
Koehler WK, Fleissner G (1979) Bilateralsymmetrische Organisation circadianer Oszillatoren im Sehsystem von Schwarzkäfern. Verh Dtsch Zool Ges 1978:290
Larimer JL, Smith JTF (1980) Circadian rhythm of retinal sensitivity in crayfish: Modulation by the cerebral and optic ganglia. J Comp Physiol 136:313–326
Loher W (1972) Circadian control of stridulation in the cricketTeleogryllus commodus (Walker). J Comp Physiol 69:173–190
Nishiitsutsuji-Uwo J, Pittendrigh CS (1968) Central nervous system control of circadian rhythmicity in the cockroach. III. The optic lobes, locus of the driving oscillation? Z Vergl Physiol 58:14–46
Page TL (1978) Interactions between bilaterally paired components of the cockroach circadian system. J Comp Physiol 124:225–236
Page TL (1981) Effects of localized low temperature pulses on the circadian rhythm of locomotor activity in the cockroach. Am J Physiol 240:R144-R150
Page TL (1982) Transplantation of the cockroach circadian pacemaker. Science 216:73–75
Page TL, Caldorola PC, Pittendrigh CS (1977) Mutual entrainment of bilaterally distributed circadian pacemakers. Proc Natl Acad Sci USA 74:1277–1281
Roberts SK (1974) Circadian rhythms in cockroaches: effects of optic lobe lesions. J Comp Physiol 88:21–30
Rusak B, Zucker I (1979) Neural regulation of circadian rhythms. Physiol Rev 59:449–526
Sokolove PG (1975) Localization of the cockroach optic lobe circadian pacemaker with microlesions. Brain Res 87:13–21
Sokolove PG, Loher W (1975) Role of eyes, optic lobes and pars intercerebralis in locomotory and stridulatory circadian rhythms ofTeleogryllus commodus. J Insect Physiol 21:785–799
Truman JW (1972) Physiology of insect rhythms. II. The silkmoth brain as the location of the biological clock controlling eclosion. J Comp Physiol 81:99–114
Author information
Authors and Affiliations
Additional information
Supported by the Deutsche Forschungsgemeinschaft, Sonderforschungsbereich 45 „Vergleichende Neurobiologie des Verhaltens“ E1
Rights and permissions
About this article
Cite this article
Fleissner, G. Isolation of an insect circadian clock. J. Comp. Physiol. 149, 311–316 (1982). https://doi.org/10.1007/BF00619146
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00619146