KINETICS OF PHOSPHATE ACCUMULATION IN AEROBACTER AEROGENES

Authors
  1. White, L.A.
  2. MacLeod, R.A.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN)
Abstract
The kinetics of orthophosphate accumulation by Aerobacter aerogenes were studied. Results indicated the existence of two apparently distinct mechanisms for the accumulation of this anion. System I, which exhibited the greatest affinity for phosphate, appeared to follow Michaelis-Menten kinetics and was found to be the major mechanism operative at external phosphate concentrations of less than E-4 M. At concentrations in excess of this level, a second system, designated System II, was found to predominate. Excess phosphate inhibits the initial (20 sec) accumulation by System I. The effect of magnesium and potassium ions on the kinetic parameters of System I was determined.
Keywords
Aerobacter aerogenes
Report Number
325 —
Date of publication
15 Sep 1981
Number of Pages
31
DSTKIM No
82-00650
CANDIS No
35307
Format(s):
Hardcopy;Originator's fiche received by DSIS

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