Auxin-induced changes in barley coleoptile cell wall composition :
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- Sakurai,Naoki
- Department of Biology, Faculty of Science, Osaka University
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- Masuda,Yoshio
- Department of Biology, Faculty of Science, Osaka University
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抄録
Auxin induces extension growth of barley coleoptile segments, causing cell extension and cell wall loosening represented by a change in mechanical properties of the cell wall. This response decreased after the segments were starved for more than 12 hr in buffer solution. Auxin decreased the noncellulosic glucose content of the cell wall of the segments starved for 0 and 6 hr, but very little that of segments starved for 12 and 18 hr. The contents of arabinose, xylose and galactose, among noncellulosic polysaccharides, and α-cellulose of the cell wall increased during the starvation, but auxin did not affect them. The auxin-induced decrease in glucose content was inhibited by nojirimycin, a potent inhibitor of β-glucanase, which inhibited auxin-induced extension and changes in mechanical properties of the cell wall, suggesting that cell wall loosening, and thus cell extension, resulted from partial degradation of β-glucan of the cell wall.
収録刊行物
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- Plant and cell physiology
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Plant and cell physiology 19 (7), 1217-1223,
Japanese Society of Plant Physiologists
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詳細情報 詳細情報について
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- CRID
- 1543668945103995136
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- NII論文ID
- 110003717511
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- NII書誌ID
- AA0077511X
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- 本文言語コード
- en
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- データソース種別
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- NDL-Digital
- CiNii Articles