Effects of precursor, temperature, and illumination on theanine accumulation in tea callus.

• MATSUURA Takanobu

  Central Research Institute, ITOEN, Ltd.

• KAKUDA Takami

  Central Research Institute, ITOEN, Ltd.

抄録

The theanine (THE: γ-glutamylethylamide) accumulation level was greatly increased in tea callus when ethylamine hydrochloride (EtNH₂•HCl) was added to the medium. The optimum temperature for THE accumulation was the same temperature (25°C) as for growth of callus. Little THE was discharged into the medium. Dark culture was better than illumination for the accumulation of THE (201 mg/g dry wt.). These results suggested that THE synthetase had a positive activity, the decrease of THE content in callus was caused by the lowering of EtNH₂ biosynthesis level, and temperature and illumination strongly affected THE accumulation.

収録刊行物

• Agricultural and Biological Chemistry

  Agricultural and Biological Chemistry 54 (9), 2283-2286, 1990

  公益社団法人 日本農芸化学会

キーワード

• General Agricultural and Biological Sciences
• General Biochemistry, Genetics and Molecular Biology

詳細情報

• CRID: 1390001206460639616
• NII論文ID: 110006325120
• NII書誌ID: AA00515312
• DOI: 10.1271/bbb1961.54.2283
• COI: 1:CAS:528:DyaK3cXmtVyntL4%3D
• ISSN: 18811280
• ISSN: 00021369
• ISSN: http://id.crossref.org/issn/00021369
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可