Back to Search Start Over

Photoperiodism in Ostrinia nubilalis: A New Protocol for the Analysis of the Role of the Circadian System

Authors :
Steven D. Skopik
Dana L. Newswanger
N.G. Patel
William Cain
Source :
Journal of Biological Rhythms. 1:145-150
Publication Year :
1986
Publisher :
SAGE Publications, 1986.

Abstract

A 12-hr dark period, at a temperature high enough to permit time measurement to occur, is necessary for maximal induction of larval diapause in the European corn borer, Ostrinia nubilalis. In the present study, induction of diapause only occurred in a periodic environment. This was in the form of certain (1) light-dark (LD) cycles at a constant temperature; (2) thermo periods in constant darkness (DD), but not constant illumination (LL); and (3) LD cycles with concurrent thermoperiods. A light-break experiment protocol, in which the pulses systematically scan the cold and warm phases of a thermoperiod in DD, is discussed as a way of helping clarify how seasonal time measurement is effected in Ostrinia.

Details

ISSN :
15524531 and 07487304
Volume :
1
Database :
OpenAIRE
Journal :
Journal of Biological Rhythms
Accession number :
edsair.doi.dedup.....6b7a44c8886e7f86ca3a4a1b0bda8184
Full Text :
https://doi.org/10.1177/074873048600100205