Effects of Filipin and Cholesterol on K Movement in Etiolated Stem Cells of Pisum sativum L.

Filipin, a polyene antibiotic known to induce leakage of materials from various cells, depresses K(+) and NO(3) (-) uptake in etiolated pea epicotyl segments. Filipin concentrations which strongly reduce K(+) influx have little effect on efflux; however, high concentrations enhance K(+) efflux. Filipin has no effect on respiration rates or cell… (More)