Persistence of Cell Division Synchrony in Spirogyra Insignis (Gamophyceae): Membrane Proteoglycans Transmitting Synchronizing Information Throughout Generations |
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Authors: | Eduardo Costas Victoria Lopez Rodas |
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Institution: | Genética, Producción Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Spain. |
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Abstract: | Spirogyra insignis shows a long-term persistence of cell division synchrony in the absence of the synchronizing Zeitgeber, so that at least six generations are involved in the process. This tentatively suggests that a mechanism of transmission throughout generations of synchronizing information could maintain this synchrony. Apparently, a vital part of the molecular basis of this mechanism is a membrane proteoglycan complex. This complex could obtain temporal information from a synchronizing Zeitgeber and be transmitted to the progeny by distribution of plasma membrane between daughter cells. |
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Keywords: | Cell division Synchrony Persistence Decay Proteoglycans Circadian rhythm Clock mechanism Microalgae |
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