Oxygen increases the steady-state level of nitrate in denitrifying cells of Paracoccus denitrificans

. 1996 Dec 01 ; 145 (2) : 163-6.

Jazyk angličtina Země Anglie, Velká Británie Médium print

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/pmid08961552

The levels of nitrate in denitrifying cells of Paracoccus denitrificans were determined by centrifugation through silicone oil into phosphoric acid and ion-exchange HPLC analysis of the cell lysates, using [14C]sucrose to correct for the trapped external medium. Introduction of oxygen brought about a significant upward shift in the intracellular nitrate concentration. This result calls into question the current thinking that oxygen blocks nitrate respiration primarily due to the inhibition of nitrate transport into the cell.

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