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. 1977;22(3):216-21.
doi: 10.1007/BF02885603.

Phosphate uptake and involvement of binding protein in Tween-80 supplemented culture of Aspergillus fumigatus

K K Rao, A M Mehta, A R Gupta

Phosphate uptake and involvement of binding protein in Tween-80 supplemented culture of Aspergillus fumigatus

K K Rao et al. Folia Microbiol (Praha). 1977.

Abstract

Tween-80 supplementation in submerged culture of Aspergillus fumigatus resulted in an increase of phosphate uptake. The uptake system was characterized as saturable, energy-dependent and operating against the concentration gradient. Control and Tween 80 cultures showed similar Km values for phosphate uptake (50 micrometer). Cold osmotic shock treatment of the cultures was found to cause considerable reduction in the ability to take up phosphorus with concomitant release of the binding protein into the shock fluid. Binding protein preparation from Tween-80 supplemented cells showed more activity than that from control cells.

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