Effect of ion transport inhibitors on sodium uptake in reed (Phragmites communis Trinius) and maize (Zea mays L.)
2001
Kobayashi, Y. (Tokyo Univ. of Agriculture (Japan)) | Maeda, Y. | Takenaga, H.
The effects of ion transport inhibitors on sodium uptake in reed and maize were studied to examine the participation of ion transporter in the salt tolerance. 5-(Af-Methyl-N-isobutyl)-amiloride (Na+/H+-antiporter), bafilomycin AI and concanamycin A (V-type H+-ATPase) and ouabain (animal Na+-ATPase) were used as inhibitors. Among them, 100microM ouabain significantly increased sodium content of reed shoots in the presence of 100 mM NaCl. However, sodium content of maize was not affected by the inhibitors. These results suggested that Na+-ATPase might be involved in specific mechanism of Na+ re-transport in reed.
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