Phosphate uptake and involvement of binding protein in Tween-80 supplemented culture of Aspergillus fumigatus
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články
PubMed
18385
DOI
10.1007/bf02885603
Knihovny.cz E-zdroje
- MeSH
- Aspergillus fumigatus účinky léků metabolismus MeSH
- dinitrofenoly farmakologie MeSH
- dusičnany farmakologie MeSH
- fosfáty metabolismus MeSH
- fungální proteiny metabolismus MeSH
- koncentrace vodíkových iontů MeSH
- kyanidy farmakologie MeSH
- osmóza MeSH
- polyethylenglykoly farmakologie MeSH
- polysorbáty farmakologie MeSH
- pronasa farmakologie MeSH
- transportní proteiny metabolismus MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- dinitrofenoly MeSH
- dusičnany MeSH
- fosfáty MeSH
- fungální proteiny MeSH
- kyanidy MeSH
- polyethylenglykoly MeSH
- polysorbáty MeSH
- pronasa MeSH
- transportní proteiny MeSH
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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