Vea E V, Cutkomp L K, Halberg F
Chronobiologia. 1977 Oct-Dec;4(4):313-23.
The circadian rhythms of oxygen consumption and insecticide sensitivity (to dichlorvos, a rapid-acting organophosphate) in adult confused flour beetles (Tribolium confusum du Val) were determined using a LD 12:12 lighting regimen and other standardized conditions. Analysis included fitting a 24 h cosine curve to the data to estimate rhythm characteristics. Relationships between rhythms in oxygen consumption and insecticide sensitivity were evaluated on the basis of each rhythm's acrophase (timing of high point). The acrophase of oxygen consumption occurred on the average about 3 h after the middle of the daily dark span. Maximum insecticide sensitivity, based upon the reciprocal of the LC70, occurred about 2 h earlier. Although the times are fairly close, the difference between the two acrophases was statistically significant.
在12小时光照与12小时黑暗的光照周期及其他标准条件下，测定了赤拟谷盗成虫的耗氧量昼夜节律以及对杀虫剂（速灭磷，一种速效有机磷）的敏感性。分析包括将一条24小时的余弦曲线拟合到数据中，以估计节律特征。根据每个节律的高峰期（最高点出现的时间），评估了耗氧量节律与杀虫剂敏感性之间的关系。耗氧量的高峰期平均出现在每日黑暗期中间时间之后约3小时。基于LC70的倒数得出的最大杀虫剂敏感性则提前约2小时出现。虽然这两个时间相当接近，但两个高峰期之间的差异具有统计学意义。
