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Daily rhythm and activation mechanism of the oviposition behavior in the cricket.

蟋蟀产卵行为的日常节律和激活机制。

基本信息

批准号：
07640908
负责人：
SUGAWARA Takashi
金额：
$ 1.28万
依托单位：
Saitama Medical School
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07640908/
关键词：
cricket oviposition daily rhythm actogram ovariectomy 歩行活動行動発達

项目摘要

Oviposition behavior in the cricket was recorded and analyzed by the newly developed actogram system, in which penetration of the ovipositor was counted through the special photo-sensor. Locomotion activity was simultaneously recorded and analyzled. Experimental condition was 27ﾟC and 12L : 12D.In normal virgin females, the first penetration appeared at the day 4 of the adult life, whereas the first egg was laid at the day 17. Total oviposition activity through 30 days was very low. Their locomotion activity was very high at the day 3-5, then it decreased and became constant. As the daily activity, the locomotion was high in D-phase, with the peak at 3 hrs after the beginning of the D-phase ; on the other hand, oviposition showed no distinct diel rhythmicity.In the females mated on the day 1 of the adult life, the first penetration occurred at the day 4, at which the first egg was also laid. The activity counted and eggs laid increased until the day 8 then decreased gradually. The oviposition occurred predominantly in D-phase. Their locomotion activity was much lower than that of virgins and kept constant from the day 1 through 30 days. The diel rhythm of the locomotion was obscure.In the ovariectomized females, characteristics of the oviposition and locomotion activity in mated and virgin groups were similar to those in normal females.These results revealed that the mating activates the oviposition behavior but suppresses the locomotion activity, and that the ovaries do not concern these changes.

利用自行研制的蟋蟀产卵记录系统，通过特制的光传感器对蟋蟀产卵器的穿透进行计数，记录和分析蟋蟀的产卵行为。同时记录和分析运动活动。实验条件为27 ℃、12 L：12 D。正常处女雌虫的第一次穿透出现在成虫期的第4天，而第一次产卵则在第17天。30天内的总产卵活性很低。3-5日龄时，小鼠的运动活动最强，随后逐渐减弱，并趋于稳定。成虫活动在D期最活跃，在D期开始后3 h出现活动高峰，产卵无明显的昼夜节律性，在成虫生活的第1天交配的雌虫，在第4天第一次穿体，也是第一次产卵。活动计数和产卵量增加，直到第8天，然后逐渐下降。产卵主要发生在D期。从第1天到第30天，它们的运动活动远低于处女，并保持恒定。卵巢切除后的雌虫，交配组和未交配组的产卵和运动活动特征与正常雌虫相似，表明交配激活了产卵行为，但抑制了运动活动，卵巢与这些变化无关。