ミカンコミバエの羽化の日周期性に対する温度と光の周期の影響

概要

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When the pupae of oriental fruit fly, Dacus dorsalis, were exposed to thermoperiod (25 : 20℃), there was a conspicuous peak of adult emergence at around the time of temperature rise. When they were exposed to photoperiod, the emergence mainly occurred at the time of light-on at 25℃, but somewhat later at 20℃. When the pupae were transferred to constant conditions after having experienced daily thermoperiods, the emergence rhythm persisted at 25℃ or 20℃, but not at 15℃. The rhythm of emergence entrained by a photopericd persisted in either continuous light or darkness. When the pupae were transferred from continuous darkness to continuous light at 25℃, the time of emergence was determined by a single stimulus of light-on, but the reversed treatment was not effective in synchronizing the emergence of adult. When the phase of thermoperiod or photoperiod was shofted, the distribution of emergence showed various patterns according to the degree and the time of the phase shift. In non-24-hr cycles of thermoperiod, the emergence was synchronized with thermoperiod if the cycle length was close to 24 hr. In a 48-or 72-hr cycle the emergence peak occurred, also, at about 24-hr intervals. When a thermoperiod and a photoperiod were combined in various phase relationships, the emergence occurrd invariably within 2 hr after the temperature rise regardless of the phase of the light-dark cycle.
日本応用動物昆虫学会の論文
1976-06-25