Eur. J. Entomol. 100 (2): 287-293, 2003 | DOI: 10.14411/eje.2003.045

Photoperiodic clock of diapause termination in Pseudopidorus fasciata (Lepidoptera: Zygaenidae)

Aiqing LI, Fangsen XUE*, Ai HUA, Jianjun TANG
Institute of Entomology, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China

Photoperiodic control of diapause termination was systematically investigated in Pseudopidorus fasciata. In 24 h light-dark cycles, the rate of diapause termination in this species depended on photoperiod. The critical night length (CNL) for diapause termination was 10 h, 0.5 h shorter than that for diapause induction. Night-interruption experiments with T = 24 showed that diapause was effectively terminated when the scotophases separated by light pulse were shorter than the critical night length (10 h); no developing individuals were found if the duration of the pre-interruption scotophase or the post-interruption scotophase exceeded the CNL. A 15-min light pulse was sufficient to reverse the effect of long night when it was placed 8 h after lights-off. Resonance experiments with a constant photophase of 12 h or 16 h and various scotophases of 4-80 h showed an hourglass-type photoperiodic response, where no rhythmicity was found. In another resonance experiment with constant scotophase of 8 h and various photophases of 4-72 h, all individuals developed into cocoons. In the Bünsow experiment, the response curve showed two apparent peaks for diapause termination, one being 8 h after lights-off, and another 8 h before lights-on. However, there was no periodic rhythmicity, which again indicates an hourglass principle. The results lead to the conclusion that the same photoperiodic clock mechanism (a long-night measuring hourglass) is involved in both diapause induction and termination.

Keywords: Pseudopidorus fasciata, photoperiod, diapause termination, hourglass

Received: August 30, 2002; Revised: January 6, 2003; Accepted: January 30, 2003; Published: June 25, 2003  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
LI, A., XUE, F., HUA, A., & TANG, J. (2003). Photoperiodic clock of diapause termination in Pseudopidorus fasciata (Lepidoptera: Zygaenidae). EJE, 100(2), 287-293. doi: 10.14411/eje.2003.045
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. Barker R.J. 1963: Inhibition of diapause in Pieris rapae L. by supplementary photophases. Experientia 19: 185 Go to original source...
    2. Beards C.W. & Strong F.E. 1966: Photoperiod in relation to diapause in Lygus hesperus Knight. Hilgardia 37: 345-362 Go to original source...
    3. Beck S.D. 1980: Insect Photoperiodism. 2nd ed. Academic Press, New York, 387 pp Go to original source...
    4. Beck S.D. 1962: Photoperiodic induction of diapause in an insect. Biol. Bull. Mar. Lab., Woods Hole. 122: 1-12 Go to original source...
    5. Brunnarius J. & Dumortier B. 1984: Existence of a light-sensitive phase in the photoperiodic termination of diapause in Pieris brassicae L. (Insecta: Lepidoptera) and comparison with diapause induction. J. Comp. Physiol. A. 155: 161-169 Go to original source...
    6. Claret J. 1985: Two mechanisms in the biological clock of Pieris brassicae L.: An oscillator for diapause induction: an hourglass for diapause termination. Experientia 41: 1613-1615 Go to original source...
    7. Claret J. & Arpagaus M. 1994: Evidence for "dawn" and "dusk" hourglasses in Pimpla photoperiodic clock. Biol. Rhythms Res. 25: 106-118 Go to original source...
    8. Hamner W.M. 1969: Hour-glass dusk and rhythmic dawn timers control diapause in the codling moth. J. Insect Physiol. 15: 1499-1504 Go to original source...
    9. Hayes D.K., Sullivan W.N., Cawley B.M. & Oliver M.Z. 1970: Delay and acceleration of breaking diapause of Antheraea pernyi and Laspeyresia pomonella by photoperiodic manipulation. Life Sci. 9: 601-606 Go to original source...
    10. Hayes D.K, Cawley B.M., Sullivan W.N., Adler V.E. & Schechter M.S. 1974: The effect of added light pulses on overwintering and diapause, under natural light and temperature conditions, of four species of Lepidoptera. Environ. Entomol. 3: 863-865 Go to original source...
    11. Koveos D.S., Kroon A. & Veerman A. 1993: The same photoperiodic clock may control induction and maintenance of diapause in the spider mite Tetranychus urticae. J. Biol. Rhythms 8: 265-282 Go to original source...
    12. Lees A.D. 1973: Photoperiodic time measurement in the aphid Megoura viciae. J. Insect Physiol. 19: 2279-2316 Go to original source...
    13. Saunders D.S. 1982: Insect Clocks. 2nd ed. Academic Press, New York, 409 pp
    14. Saunders D.S. 1983: A diapause induction-termination asymmetry in the photoperiodic response of the linden bug Pyrrhocoris apterus and an effect of near critical photoperiod on development. J. Insect Physiol. 29: 399-405 Go to original source...
    15. Skopik S.D. & Takeda M. 1986: Photoperiodic control of diapause induction and termination in Ostrinia nubilalis: two different clocks? J. Biol. Rhythms 1: 137-143 Go to original source...
    16. Skopik S.D. & Takeda M. 1987: Diapause induction and termination: North-south strain differences in Ostrinia nubilalis. J. Biol. Rhythms 2: 13-22 Go to original source...
    17. Takeda M. 1985: An "hourglass-like" feature in the photoperiodic time measurement in Diatraea grandiosella (Pyralidae). J. Insect Physiol. 31: 397-406 Go to original source...
    18. Takeda M. & Masaki S. 1976: Photoperiodic control of larval development in Plodia interpunctella. In: Proc. Joint U.S.-Jap. Sem. Stor. Prod. Insect, pp 186-201
    19. Tauber M.J., Tauber C.A. & Masaki S. 1986: Seasonal Adaptation of Insects. Oxford University Press, New York, 411 pp
    20. Vaz Nunes M. & Saunders D.S. 1999: Photoperiodic time measurement in insects: a review of clock models. J. Biol. Rhythms 14: 84-104 Go to original source...
    21. Veerman A. & Koveos D.C. 1989: Separation of photoperiodic and circadian effects on the termination of diapause in the spider mite Tetranychus urticae. Experientia 45: 1143-1146 Go to original source...
    22. Veerman A. 2001: Photoperiodic time measurement in insects and mites: a critical evaluation of the oscillator-clock hypothesis. J. Insect Physiol. 47: 1097-1109 Go to original source...
    23. Wei X.T., Xue F.S. & Li A.Q. 2001: Photoperiodic clock of diapause induction in Pseudopidorus fasciata (Lepidoptera: Zygaenidae). J. Insect Physiol. 47: 1367-1375 Go to original source...
    24. Xue F.S. & Kallenborn H.G. 1998: Control of summer and winter diapause in Pidorus euchromioides (Lepidoptera: Zygaenidae) on Chinese sweetleaf Symplocos chinensis. Bull. Entomol. Res. 88: 207-211 Go to original source...

    This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.


    Return to the content