Nisimura T, Numata H
Department of Bio- and Geosciences, Graduate School of Science, Osaka City University, Japan.
J Comp Physiol A. 2001 Jul;187(6):433-40. doi: 10.1007/s003590100215.
This paper describes the detailed characteristics of the circannual pupation rhythm in Anthrenus verbasci determined by laboratory experiments under various photoperiods and temperatures. The frequency distribution of larval duration showed a periodic pattern over 2-3 years and the period was 37-40 weeks under a constant short-day photoperiod (light:dark 12:12) at 20 degrees C. This rhythm showed temperature compensation to some extent under a short-day photoperiod between 17.5 degrees C and 27.5 degrees C. Under alternations of a long-day (light:dark 16:8) and a short-day photoperiod, pupation occurred 21-24.5 weeks after transfer from a long-day to a short-day photoperiod. Therefore, we concluded that the timing of pupation in A. verbasci is controlled by a circannual rhythm and its zeitgeber is a change in photoperiod. Furthermore, when larvae were transferred from a long-day to a short-day photoperiod at various ages, the larval duration after the photoperiodic transfer depended on the time of the transfer. This difference can be explained by phase-dependent phase shifts in the circannual rhythm.
本文描述了通过在不同光周期和温度条件下的实验室实验所确定的黑毛皮蠹（Anthrenus verbasci）的年周期化蛹节律的详细特征。幼虫期的频率分布在2至3年呈现出周期性模式，在20摄氏度恒定短日照光周期（光照：黑暗为12:12）下，周期为37至40周。在17.5摄氏度至27.5摄氏度的短日照光周期下，这种节律在一定程度上表现出温度补偿。在长日照（光照：黑暗为16:8）和短日照光周期交替的情况下，从长日照转移到短日照光周期后21至24.5周化蛹。因此，我们得出结论，黑毛皮蠹的化蛹时间受年周期节律控制，其授时因子是光周期的变化。此外，当幼虫在不同年龄从长日照转移到短日照光周期时，光周期转移后的幼虫期取决于转移时间。这种差异可以通过年周期节律中相位依赖的相位变化来解释。
