Amino acid uptake by Lemna gibba by a mechanism with affinity to neutral L-and D-amino acids
- 1 November 1980
- journal article
- research article
- Published by Springer Nature in Planta
- Vol. 150 (3), 230-235
- https://doi.org/10.1007/bf00390831
Abstract
Earlier work suggested that amino acid uptake by Lemna gibba cells is a H+-cotransport mechanism driven by a proton-electrochemical gradient at the plasmalemma. The present investigations of the transient membrane depolarizations elicited by amino acids and tracer-uptake experiments show that all neutral α-L-amino acids, D-alanine and analogues, like β-alanine and p-fluorophenylalanine, are transported by the same system. It remains to be seen if there are separate mechanisms for the uptake of acidic and basic amino acids.Keywords
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