Dreikernige Transplantate zwischen Acetabularia crenulata und mediterranea I
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چکیده
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The Membrane Potential of Acetabularia mediterranea
The cytoplasm of an Acetabularia cell is normally at a potential of about -170 mv relative to the external solution; the vacuole is also at this potential. Although there is strict flux equilibrium for all ions, the potential is more negative than the Nernst potentials of any of the permeating ions. Darkness, CCCP, low temperature, and reducing [Cl(-)](o) by a factor of 25 all rapidly depolariz...
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Radioautographic and radiochemical techniques were used to establish the presence of replicating DNA in the chloroplasts of Acetabularia mediterranea. These techniques also demonstrated that these chloroplasts synthesize RNA. It was found that label from thymine was also incorporated into DNA and RNA in these chloroplasts. With the establishment of protein and nucleic acid synthesis in Acetabul...
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ژورنال
عنوان ژورنال: Zeitschrift für Naturforschung A
سال: 1946
ISSN: 1865-7109,0932-0784
DOI: 10.1515/zna-1946-0611