Effects of Ambient Temperature and Temperature Cycle on Locomotor Activity Rhythm in the Onion fly, Delia antiqua
Effects of Ambient Temperature and Temperature Cycle on Locomotor Activity Rhythm in the Onion fly, Delia antiqua
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环境温度和温度循环对洋葱蝇 Delia antiqua 运动活动节律的影响
DOI：
10.2108/zsj.17.1239
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
Y. Watari
中科院分区：
文献类型：
--
作者：
Y. Watari
洋葱蝇迪利亚antiqua在LD 12：12中的运动活动相在低温（20°C）下比在高温（25°C）下提前。20°C时，在恒定黑暗（DD）中的自由活动周期（τ）比25°C时短，表明20°C时LD周期中的运动活动的相位提前是由τ的减小引起的。在恒定光照（LL）条件下，恒温条件下的自发活动是缓慢的。在DD和LL中，自发活动被带入12小时25°C：12小时20°C的温度循环;活动发生在热相，其峰值随年龄而延迟。然而，LL的延迟小于DD。在12小时冷（20°C）光照和12小时暖（25°C）黑暗的循环中，该蝇显示出与在恒定温度（20°C或25°C）下LD 12：12中相似的活动模式;活动发生在光照阶段。这表明LD循环是一个比温度循环更强的诱导D.古董
Abstract The phase of locomotor activity of the onion fly, Delia antiqua, in LD12:12 advanced at a low temperature (20°C) as compared with that at a high temperature (25°C). The free-running period (τ) in constant darkness (DD) at 20°C became shorter than that at 25°C, suggesting that the phase advance of locomotor activity in LD cycles at 20°C was caused by the decrease in τ. In constant light (LL), the locomotor activity was arrhythmic at a constant temperature. In both DD and LL, the locomotor activity was entrained to a 12 hr 25°C:12 hr 20°C temperature cycle; the activity occurred in the thermophase and its peak delayed with age. However, the delay in LL was smaller than that in DD. At a cycle of 12 hr cool (20°C) light and 12 hr warm (25°C) dark, the fly showed a similar activity pattern to that in LD 12:12 at a constant temperature (20°C or 25°C); the activity occurred in the light phase. This suggests that LD cycle is a stronger zeitgeber than a temperature cycle to entrain the locomotor activity of D. antiqua.