Über tagesperiodische Schwankungen der Sauerstoffbilanz kernhaltiger und kernloser Acetabularia mediterranea

Abstract

A method is described for the electrochemical determination of the oxygen balance of aquatic organisms. With this method it was possible to demonstrate that individual Acetabularia cells kept under continuous illumination showed a diurnal rhythm of photosynthesis for a period of several weeks. The rhythm could be observed even 40 days after removal of the nucleus. The role of the nucleus in this periodicity is discussed.