Frank K D, Zimmerman W F
Science. 1969 Feb 14;163(3868):688-9. doi: 10.1126/science.163.3868.688.
Action spectra were determined for lightinduced phase shifts of the circadian rhythm of adult emergence in Drosophila pseudoobscura. The action spectra for advance and delay phase shifts are similar; the most effective wavelengths are in the blue region, with a sharp cutoff above 500 nanometers. This similarity suggests that the same photoreceptive pigment mediates both advance and delay phase shifts.
测定了伪暗果蝇成虫羽化昼夜节律的光诱导相移的作用光谱。提前和延迟相移的作用光谱相似；最有效的波长在蓝光区域，在500纳米以上有一个急剧截止。这种相似性表明，相同的光感受色素介导提前和延迟相移。
