Planta 1978-Jan
The influence of potassium content on the kinetics of potassium influx into excised ryegrass and barley roots.
רק משתמשים רשומים יכולים לתרגם מאמרים
התחבר הרשם
הקישור נשמר בלוח
מילות מפתח
תַקצִיר
The influx of K(+) into excised roots of barley (Hordeum vulgare L.) and ryegrass (Lolium multiflorum L.) previously grown with or without K(+) was measured in K(+) solutions ranging in concentration from 0.01 to 50 mM. In both species the K(+) influx was lower in the roots with high K(+) content. The extent of reduction by high internal [K(+)] decreased with external concentration above 1 mM. These results support the contention that at high external concentrations passive diffusion makes significant contributions to observed fluxes.