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Manganese Absorption and Transport in Rice
Author(s) -
RAMANI SARADHA,
KANNAN SESHADRI
Publication year - 1975
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.1399-3054.1975.tb03780.x
Subject(s) - manganese , absorption (acoustics) , shoot , rice plant , chemistry , botany , metabolism , biophysics , biochemistry , biology , horticulture , materials science , organic chemistry , composite material
Abstract The absorptive patterns of Mn 2+ in excised rice roots, leaf tissues and intact plants, were studied. The rates of absorption of Mn 2+ followed different patterns in the roots and the leaf tissues. The uptake from 0.1 and 5 m M MnSO 4 was found to be sensitive to metabolic inhibitors. The time course of uptake from 0.1 m M and 5 m M MnSO 4 followed a biphasic pattern which represented only the metabolic component of absorption. A secondary biphasic pattern of uptake at 5 m M MnSO 4 (one at 20 min and another at 80 min) appears quite anomalous and is probably related to structural virations or cellular compartments. When absorption and transport of Mn 2+ were measured in intact rice and wheat plants, it was found that Mn 2+ was easily translocated to shoot from roots and the transport of Mn 2+ was comparable to that of K + .