Function of the Shoot Base of Salt-Tolerant Reed (Phragmites communis Trinius) Plants for Na^+ Exclusion from the Shoots
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概要
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The function of the basal part of the shoot for salt tolerance of reed (Phragmites communis Trinius) was studied by ^22Na^+ uptake and histochemical experiments. Shoot-base girdling (3 s with for air) increased the Na^+ transport to shoot to 284% in 60 min and decreased the retranslocation of shoot Na^+ to root to 24% in 30 min. These results suggest that Na^+ exclusion from the shoot depends on the biological activity of the shoot base. Histochemical examination revealed that a high activity of vanadate-sensitive ATPase could be detected in the phloem region of the shoot base. This activity was completely inhibited by the hot girdling, suggesting that the phloem ATPase may be involved in the downward Na^+ transport occurring in the shoot base of reed plants.
- 社団法人日本土壌肥料学会の論文
著者
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Matoh Toru
Plant Nutrition Laboratory Faculty Of Agriculture Kyoto University
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Matoh Toru
Plant Nutrition Applied Life Sciences Graduate School Of Agriculture Kyoto University
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Matsushita Nobutoshi
Plant Nutrition Laboratory Faculty Of Agriculture Kyoto University
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