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Potassium and Rubidium Interaction in Their Absorption by Bean Leaf Slices
Author(s) -
JACOBY BENJAMIN,
NISSEN PER
Publication year - 1977
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1977.tb01491.x
Subject(s) - rubidium , phaseolus , potassium , absorption (acoustics) , chemistry , alkali metal , nuclear chemistry , analytical chemistry (journal) , botany , chromatography , biology , materials science , organic chemistry , composite material
Mesophyll cells of leaf slices of bean ( Phaseolus vulgaris L.) absorb six to ten times more K + than Rb + from 0.1 m M single chlorides of these cations. Absorption of 42 K + from 0.1 m M 42 KCl is much more inhibited by low concentrations of Rb 2 SO 4 than by K 2 SO 4 . The isotherm for K + absorption is biphasic in the range 0.1–1.1 m M , and K + is more effective than Rb + in causing transition from phase 1 to phase 2.