Peptide transport by germinating barley embryos: Evidence for a single common carrier for di- and oligopeptides
- 1 January 1978
- journal article
- research article
- Published by Springer Nature in Planta
- Vol. 138 (3), 217-221
- https://doi.org/10.1007/bf00386814
Abstract
Competition for uptake of a range of amino acids and peptides by germinating barley (Hordeum vulgare L.) embryos was studied. Peptides and amino acids show no competition and are apparently absorbed by independent transport systems. However, peptides of widely different structures do compete and it seems that only a single peptide transport system is present in barley embryos, capable of handling both di- and oligopeptides. The ability of physiological peptides to totally inhibit the uptake of glycylsarcosine indicates they share a common uptake system which previously has been shown to have the properties of an active transport process. The characteristics of the barley peptide transport system are compared with those found in other organisms.This publication has 9 references indexed in Scilit:
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