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'Ionophores' in keywords Facet   Publication Year 1982  [X]
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1982[X]
1Author    G. Ünther, F. E. SchererRequires cookie*
 Title    A New M ethod to Prepare M em brane F ractions Containing Ionophore-Stim ulated A T P a se from Pumpkin H ypocotyls (Cucurbita maxima, L .)  
 Abstract    In membrane fractions from pumpkin hypocotyls AT­ Pase activity was stimulated by a combination o f CCCP (carbonyl cyanide m-chlorophenylhydrazone), a pro-tonophore, and valinomycin, a K +-ionophore. Singly, these ionophores stimulated ATPase activity much less. Nigericin, an H+/K +-antiporter, and nystatin, a cation pore, had similar effects as the combination o f CCCP and valinomycin. The results suggest the presence o f a cation-translocating ATPase which is stimulated by ionophores by dissipating cation gradients formed in the vesicles. A major part of the ionophore-stimulated ATPase activity correlat­ ed with marker enzymes for plasma membranes but part o f it could be located in other compartments. 
  Reference    Z. Naturforsch. 37c, 550 (1982); received March 5 1982 
  Published    1982 
  Keywords    H +-ATPase, Ionophores, Plasma Membrane, Cucurbita 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-0550_n.pdf 
 Identifier    ZNC-1982-37c-0550_n 
 Volume    37