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A hypothesis for the presence, activity, and role of potassium/hydrogen, adenosine triphosphatases in grapevines


, : A hypothesis for the presence, activity, and role of potassium/hydrogen, adenosine triphosphatases in grapevines. American Journal of Enology and Viticulture 31(3): 283-287

The presence of membrane-bound, potassium/hydrogen adenosine triphosphatases in the vegetative and reproductive tissues of grapevines is proposed. The expected role of this enzyme system in the uptake of monovalent metal cations by the roots and the influx of these ions into leaf and berry tissue are discusssed.

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