68.ヘアリーベッチにおけるシアナミドの生合成部位(口頭発表)
書誌事項
- タイトル別名
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- 68. Cyanamide-biosynthesizing organ in hairy vetch Vicia villosa subsp. varia
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抄録
Cyanamide (NH_2CN) has been isolated from hairy vetch Vicia villosa subsp. varia as a natural product for the first time. We have already clarified that the cyanamide content in hairy vetch seedlings cultivated in the growth chamber reaches its maximum at 3-4 week. The present study aims at elucidating the organ in which cyanamide is biosynthesized. The cyanamide contents in the leaves, the stems, and the roots of 4-week-old seedlings were 629 ± 209, 256 ± 134, and < 20 μg/gFW (average ± SD), respectively. This suggests that cyanamide is biosynthesized in the aerial parts (the leaves plus the stems). To investigate the cyanamide-biosynthesizing organ, we compared the ^^<15>N incorporation into cyanamide in the whole aerial parts to that in the apical portion including the younger leaves. The ^^<15>N isotope abundance ratio in the isolated cyanamide was 3.99 ± 0.61% (average ± SE) when the whole aerial parts was incubated with ^^<15>N-labeled nitrogen sources, which was significantly higher than that of control (0.28 ± 0.03%). In contrast, the cyanamide isolated from the apical portion was not ^^<15>N-labeled on the same condition. These results imply that cyanamide is biosynthesized in the mature leaves.
収録刊行物
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- 植物化学調節学会 研究発表記録集
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植物化学調節学会 研究発表記録集 42 (0), 81-, 2007
一般社団法人 植物化学調節学会
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詳細情報 詳細情報について
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- CRID
- 1390001204423356544
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- NII論文ID
- 110006474761
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- NII書誌ID
- AA11550064
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- ISSN
- 21896313
- 09191887
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可