Biochemical and Biophysical Research Communications 1992-Feb
Evidence for polyamine channels in protoplasts and vacuoles of Arabidopsis thaliana cells.
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Abstrakt
The presence of ion channels permeable to polyamines in the plasma membrane and tonoplast of Arabidopsis thaliana cultured cells was investigated by means of the patch-clamp technique in the whole-cell configuration. Evidence is shown for channels, activated by depolarizations in protoplasts and by hyperpolarizations in vacuoles, with slow time course of activation, permeable to putrescine, spermidine and spermine.
