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- W1909593547 abstract "Cells of the alga Acetabularia crenulata were illuminated with light of sinusoidally modulated intensity of different frequencies and changes in membrane potential were measured with microelectrodes. The frequency response, investigated in the range of frequencies of 8 to 1/40 cycles/min, displayed the following features: 1. The slope of the frequency response is, according to our results, 6 db/octave or steeper. Experiments should be extended to higher frequencies to gain more information concerning the slope of the frequency response and, thus, of the number of reactions in the series. 2. The time course of changes in membrane potential caused by light reveals non-linearities in time-scale and amplitude, indicating that not only first-order reactions are involved. 3. Time constants are slightly influenced by the intensity of light. 4. Further evidence is given that the characteristic of the action of light is logarithmic. 5. A phenomenon similar to resonance is observed, which corresponds to the overshoots generated by square-wave illumination. Models show that this is not necessarily explained by feedback systems, but also by counteracting parallel pathways" @default.
- W1909593547 created "2016-06-24" @default.
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- W1909593547 date "1971-06-01" @default.
- W1909593547 modified "2023-10-16" @default.
- W1909593547 title "The action of sinusoidally modulated light on the membrane potential of <italic>Acetabularia</italic>" @default.
- W1909593547 doi "https://doi.org/10.1093/oxfordjournals.pcp.a074628" @default.
- W1909593547 hasPublicationYear "1971" @default.
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