Alleviation of rapid, futile ammonium cycling at the plasma membrane by potassium reveals K+-sensitive and -insensitive components of NH4+ transport

Futile plasma membrane cycling of ammonium (NH4+) is characteristic of low-affinity NH4+ transport, and has been proposed to be a critical factor in NH4+ toxicity. Using unidirectional flux analysis with the positron-emitting tracer 13N in intact seedlings of barley (Hordeum vulgare L.), it is shown...

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Veröffentlicht in:	Journal of experimental botany. - 1985. - 59(2008), 2 vom: 01., Seite 303-13
1. Verfasser:	Szczerba, Mark W (VerfasserIn)
Weitere Verfasser:	Britto, Dev T, Balkos, Konstantine D, Kronzucker, Herbert J
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2008
Zugriff auf das übergeordnete Werk:	Journal of experimental botany
Schlagworte:	Journal Article Research Support, Non-U.S. Gov't Nitrogen Radioisotopes Quaternary Ammonium Compounds Lanthanum 6I3K30563S Potassium RWP5GA015D