Die Wirkung von 6-Furfurylaminopurin auf die Atmung von Zellsüspensionen von Nicotiana tabacum

Abstract

6-Furfurylaminopurine (“kinetin”) has been found to reduce markedly the respiration of cell suspensions from tissue cultures of Nicotiana tabacum var. “Samsun” in glucose containing media. The observed reduction in the oxygen consumption is not caused by an inhibition of the glucose uptake by the cells. Pyruvate, succinate, and α-ketoglutarate can restore the respiration of cells inhibited by kinetin. The increased oxygen consumption following the addition of the acids is accompanied by an increased R.Q. It is concluded therefore, that kinetin does not inhibit the tricarboxylic acid cycle, and the suggestion is put forward that kinetin acts via the Embden- Meyerhof - pathway of the glucose catabolism.