LIGHT DEPENDENT REDUCTION OF PERTECHNETATE (TT99TCOTT4-) BY BROKEN CHLOROPLASTS
Arguments are given for a ferredoxin mediated reduction of TcO-4**-, preponderantly into extractable Te(V) complexes, by illuminated, broken chloroplasts. Photosynthetic O-2- and NADP-reduction competitively inhibit Tc incorporation. As for O-2, the reaction can be stimulated by the auto-oxidizable electron acceptor methyl viologen. Furthermore, TcO-4**- can function as terminal acceptor in the diaphorase reaction, with NADPH as electron donor.
Bibliographic Reference: PLANT PHYSIOLOGY, VOL. 81 (1986), PP. 1003-1007
Record Number: 1989125071200 / Last updated on: 1987-12-01
Available languages: en