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  1. 紀要
  2. お茶の水女子大學自然科學報告
  3. 39(1)

Metabolism of Aromatic Amino Acids during the Growth Cycle of Batch Suspension Cultures of Catharanthus roseus

http://hdl.handle.net/10083/2341
http://hdl.handle.net/10083/2341
bad5adc8-1f14-4a0d-9dd9-20c3182854fc
名前 / ファイル ライセンス アクション
KJ00004830674.pdf KJ00004830674.pdf (816.6 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2008-04-30
タイトル
タイトル Metabolism of Aromatic Amino Acids during the Growth Cycle of Batch Suspension Cultures of Catharanthus roseus
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
著者 Nagaoka, Noriko

× Nagaoka, Noriko

WEKO 70384

Nagaoka, Noriko

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Ashihara, Hiroshi

× Ashihara, Hiroshi

WEKO 70385

Ashihara, Hiroshi

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著者(ヨミ)
識別子Scheme WEKO
識別子 70386
姓名 ナガオカ, ノリコ
著者(ヨミ)
識別子Scheme WEKO
識別子 70387
姓名 アシハラ, ヒロシ
内容記述
内容記述タイプ Other
内容記述 Profiles of the levels and metabolism of aromatic compounds in suspension-cultured cells of Catharanthus roseus during the growth cycle were determined. The level of total protein-amino acids, i.e., sum of the amounts of amino acids in hydrolyzates of proteins, and the level of total phenolic acids increased after transfer of the cells in the stationary phase to fresh Murashige-Skoog medium. The maximum levels of the proteinamino acids and those of the phenolic acids were observed on days 3-5, and on days 6-8, respectively, when the levels were expressed per gram fresh weight. In contrast, the level of total free amino acids, i.e., the sum of the amounts of amino acids in the ethanol-soluble fraction, and the levels of phenylalanine and typosine in the cells decreased during the two days that followed transfer of the cells to fresh medium, reached a minimum during days 3-8, and then increased again. Tracer experiments using [U-^<14>C] L-phenylalanine and [U-^<14>C] L-tyrosine indicated that most of these amino acids was utilized for the synthesis of proteins and most of the remainder was used for the synthesis of p\
henolic acids and lignin. Phenylalanine was a much a better precursor for the biosynthesis of the phenolic compounds than was tyrosine at any stage of cell growth. Small but significant amounts of phenylalanine and tyrosine were degraded in the cells. The level of phenylalanine ammonia-lyase increased after the transfer of cells to fresh medium and its maximum level was observed on days 3-5. The activity of tyrosine ammonia-lyase was always lower than that of phenylalanine ammonia-lyase. The metabolism of phenylalanine and tyrosine in seedlings of Catharanthus roseus was similar to that in cultured cells. The role of phenylalanine ammonialyase in the biosynthesis of phenolic compounds is discussed.
書誌情報 お茶の水女子大學自然科學報告

巻 39, 号 1, p. 1-14, 発行日 1988-07
ISSN
収録物識別子タイプ ISSN
収録物識別子 00298190
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00033958
フォーマット
内容記述タイプ Other
内容記述 application/pdf
形態
816645 bytes
日本十進分類法
主題Scheme NDC
主題 400
出版者
出版者 お茶の水女子大学
資源タイプ
内容記述タイプ Other
内容記述 紀要論文
資源タイプ・ローカル
紀要論文
資源タイプ・NII
Departmental Bulletin Paper
資源タイプ・DCMI
text
資源タイプ・ローカル表示コード
03
所属
Department of Biology, Faculty of Science, Ochanomizu University:(Present office)Kao Corporation, Tochigi First Laboratory
所属
Department of Biology, Faculty of Science, Ochanomizu University
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