Auxin- and hydrogen ion-induced cell wall loosening and cell extension in Avena coleoptile segments
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概要
- 論文の詳細を見る
Hydrogen ions and auxin induce rapid cell extension of Avena coleoptile segments. Nojirimycin (5-amino-5-deoxy-D-glucopyranose), a potent glucanase inhibitor, inhibits auxin-induced growth but does not affect hydrogen ion-induced extension. This inhibitor has little effect on respiration of coleoptile segments but strongly inhibits the in vitro activity of β-glucosidase. Hydrogen ions and auxin decreased the minimum stress-relaxation time of the cell wall, indicating that both enhanced cell extension through cell wall loosening. The hemicellulosic glucose content of the cell wall which was decreased by auxin after about a 2-hr lag, was not affected by hydrogen ions. These results suggest that cell wall loosening induced by hydrogen ions may not be the same as that caused by auxin, although both phenomena are represented by the decrease in the minimum stress-relaxation time.
- 日本植物生理学会の論文
著者
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Nevins Donald
Department of Vegetable Crops, University of California
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Sakurai Naoki
Department Of Environmental Studies Faculty Of Integrated Arts And Sciences Hiroshima University
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Nevins Donald
Department Of Botany And Plant Pathology Iowa State Uiversity
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Masuda Yoshio
Department of Biology, Faculty of Science, Osaka University
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Sakurai Naoki
Department Of Biology Faculty Of Science Osaka City University:(present)department Of Environmental
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Masuda Yoshio
Department Of Biology Faculty Of Science Osaka City University
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Sakurai Naoki
Department Of Biology Faculty Of Science Osaka University
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Sakurai Naoki
Department Of Biology
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Masuda Yoshio
Department Of Biology Facully Of Science Osaka City University
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