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  1. 0 資料タイプ別
  2. 01 学術雑誌論文
  1. 070 農学部
  2. 10 学術雑誌論文
  3. 10 査読済論文

Assimilation and Transport of Nitrogen in Tulip (Tulipa gesneriana) as Pursued by 15N

http://hdl.handle.net/10191/23803
http://hdl.handle.net/10191/23803
2a6e180e-985e-48c4-bde7-e03261fec702
名前 / ファイル ライセンス アクション
25_2_108-116.pdf 25_2_108-116.pdf (1.4 MB)
Item type 学術雑誌論文 / Journal Article(1)
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

WEKO 52

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
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
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