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An enzymatic degradation of ATP, ADP, AMP to adenine was observed in tobacco leaves. This enzymatic activity was concentrated 130 fold.  14 C-adenine can interfere with the determination of polymerase by adsorption to filters and bentonite. The degradation of ATP can be avoided by addition of phosphorenol pyruvate and kinase. A weak polymerase activity was found to be associated with particles in leaf extracts, but was not found in the supernatant.

Störung des Nachweises der Ribonucleinsäure-Polymerase in Tabakblättern durch eine Nucleosidase