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Assimilation and Transport of Nitrogen in Tulip (Tulipa gesneriana) as Pursued by 15N
http://hdl.handle.net/10191/23803
http://hdl.handle.net/10191/238032a6e180e-985e-48c4-bde7-e03261fec702
名前 / ファイル | ライセンス | アクション |
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25_2_108-116.pdf (1.4 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2013-10-10 | |||||
タイトル | ||||||
タイトル | Assimilation and Transport of Nitrogen in Tulip (Tulipa gesneriana) as Pursued by 15N | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Assimilation and Transport of Nitrogen in Tulip (Tulipa gesneriana) as Pursued by 15N | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | glutamine | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | labeled N | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 4-methyleneglutamin | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | nitrogen metabolis | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | root | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Ohyama, Takuji
× Ohyama, Takuji |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Characteristics of assimilation and transport of nitrogen (N) in tulip plants were investigated mainly by a 15N tracer technique. Tulip roots accumulate a large amount of N (ca. 90 mgN/gDW) during winter, if N is available in the medium. The accumulated N in the roots originated mainly in absorbed N from the medium rather than from the bulb storage N. During the winter season, the accumulated N in some roots was not readily translocated to the other roots, suggesting that the nitrogen be accumulated independently in each root. The accumulated N remained in soluble forms, especially glutamine was a major constituent. After sprouting in spring, the accumulated N in the roots was rapidly consumed for growth of leaves and stems. Some part of this N was redistributed to bulblets as the plants got matured. The behavior of N accumulated in the roots during winter was basically similar to that of the bulb storage N. Thus, it may be concluded that the physiological role of the N accumulation in roots in to provide a sufficient amount of N required for a rapid growth of leaves immediately after sprouting. During this period, 4-methyleneglutamine was a major amino compound in leaves, stems and roots. The presence of this amide appeared to be a temporary storage of N in vegetative organs of tulip plants. The transport from of N in xylem was mostly glutamine, and 4-methyleneglutamine was not detected. A high accumulation (20-120 mg/gDW) of a novel organic acid, 2-ox-4-methy1-3-pentene-1, 5-dioic acid was found in leaves and stems. This acid seems to be a deamidation and deamination product of 4-methylenglutamine. | |||||
書誌情報 |
Japan Agricultural Research Quarterly : JARQ en : Japan Agricultural Research Quarterly : JARQ 巻 25, 号 2, p. 108-116, 発行日 1991-10 |
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出版者 | ||||||
出版者 | Tropical Agriculture Research Center | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00213551 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA0068709X | |||||
著者版フラグ | ||||||
値 | publisher |