Reduction of Water Permeability in Potato Tuber Slices by Cyanide, Ammonia, 2,4-Dinitrophenol, and Oligomycin and Its Reverse by Adenosine 5′-Triphosphate and Cytidine 5′-Triphosphate 1

AUTOR(ES)

Stuart, Darrel M.

RESUMO

Five millimolar KCN reduced water permeability in 1-millimeter thick slices of potato tuber (Solanum tuberosum L.). One-tenth millimolar ATP and CTP prevented or reversed the reduced permeability. UTP and GTP were not effective. Five millimolar ammonium carbonate or 0.1 millimolar 2,4-dinitrophenol also reduced water permeability, but ATP and CTP were only partially effective in reversing the reduced permeability. Oligomycin, 5 micrograms per milliliter, reduced water permeability, and the reduction was reversed by ATP and CTP. ATP and CTP appear to be involved in maintaining the structure of water pathways into the cell.

Documentos Relacionados

• Mechanism of the enzymic reduction of N2: the binding of adenosine 5'-triphosphate and cyanide to the N2-reducing system.
• Inhibition of human immunodeficiency virus type 1 reverse transcriptase by the 5'-triphosphate beta enantiomers of cytidine analogs.
• Studies on Development of Cyanide-resistant Respiration in Potato Tuber Slices 12
• Adenosine 5'-triphosphate synthesis induced by urea hydrolysis in Ureaplasma urealyticum.
• Role for draTG and rnf Genes in Reduction of 2,4-Dinitrophenol by Rhodobacter capsulatus