The frequency of the spontaneous behavioral response inParamecium tetraureliais simultaneously modulated by both ultradian and circadian rhythms
| Autor: | R. Mialki, Luke A. Jones, Robert D. Hinrichsen, D. Belsky |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
medicine.medical_specialty
Physiology Period (gene) Circadian clock Biology Bacterial circadian rhythms Rhythm Endocrinology Light effects on circadian rhythm Physiology (medical) Internal medicine medicine Paramecium tetraurelia Circadian rhythm Neuroscience Ecology Evolution Behavior and Systematics Ultradian rhythm |
| Zdroj: | Biological Rhythm Research. 44:377-390 |
| ISSN: | 1744-4179 0929-1016 |
| DOI: | 10.1080/09291016.2012.692254 |
| Popis: | The behavioral response of Paramecium tetraurelia is due to changes in the direction of swimming, which is initiated by the generation of an action potential that causes the re-orientation of the ciliary beat. The frequency of spontaneous behavioral responses displays an ultradian rhythm, with a periodicity of approximately 50 min. Furthermore, this rhythm is disrupted by the addition of LiCl, due to the interruption of the inositol signaling pathway. The present work is an observation of the frequency of the behavioral response for a 72-h period. The frequency of the behavioral response is influenced by a circadian clock, in that the frequency of behavioral responses changes during a 24-h period, while the periodicity of the ultradian clock remains unchanged. The addition of LiCl also disrupts the circadian rhythm, lengthening the circadian period from 24 h to 27.4 h. However, unlike the ultradian rhythm, where the addition of myo-inositol inhibits the LiCl effect, myo-inositol has no effect on the disru... |
| Databáze: | OpenAIRE |
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