Biosynthesis of theanine (γ-ethylamino-l-glutamic acid) in seedlings of Camellia sinensis

Phytochemistry Letters - Tập 1 - Trang 115-119 - 2008
Wei-Wei Deng1, Shinjiro Ogita2, Hiroshi Ashihara1
1Department of Biological Sciences, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan
2Biotechnology Research Center, Toyama Prefectural University, Toyama, 939-0398, Japan

Tài liệu tham khảo

Ashihara, 1997, Metabolism of caffeine and related purine alkaloids in leaves of tea (Camellia sinensis L.), Plant Cell Physiol., 38, 413, 10.1093/oxfordjournals.pcp.a029184 Ashihara, 2008, Caffeine and related purine alkaloids: biosynthesis, catabolism, function and genetic engineering, Phytochemistry, 69, 841, 10.1016/j.phytochem.2007.10.029 Casimir, 1960, Separation and characterization of N-ethyl-γ-glutamine from Xerocomus badius, Biochim. Biophys. Acta, 39, 462, 10.1016/0006-3002(60)90199-2 Chu, 1997, Theanine—its synthesis, isolation, and physiological activity, 129 Crozier, 2006, Secondary metabolites in fruits, vegetables, beverages and other plant-based dietary components, 208 Egashira, 2004, Neuroprotective effect of gamma-glutamylethylamide (theanine) on cerebral infarction in mice, Neurosci. Lett., 363, 58, 10.1016/j.neulet.2004.03.046 Ito, 1999, Contribution of purine nucleotide biosynthesis de novo to the formation of caffeine in young tea (Camellia sinensis) leaves, J. Plant Physiol., 154, 145, 10.1016/S0176-1617(99)80202-8 Juneja, 1999, l-Theanine—a unique amino acid of green tea and its relaxation effect in humans, Trends Food Sci. Technol., 10, 199, 10.1016/S0924-2244(99)00044-8 Kakuda, 2000, Protective effect of gamma-glutamylethylamide (theanine) on ischemic delayed neuronal death in gerbils, Neurosci. Lett., 289, 189, 10.1016/S0304-3940(00)01286-6 Konishi, 1969, Metabolism of theanine in tea seedlings and transport of the metabolites (in Japanese), Nippon Dojouhiryougaku Zasshi, 40, 479 Konishi, 1978, Studies on absorption and utilization of nitrogen in tea (Camellia sinensis) trees. I. Transport to new shoots and contribution to the nitrogenous compounds synthesis (in Japanese), Nippon Dojouhiryougaku Zasshi, 49, 221 Kotaniguchi, 1987, Automatic amino acid analysis utilizing 4-fluoro-7-nitrobenzo-2-oxa-1,3-diazole, J Chromatogr., 420, 141, 10.1016/0378-4347(87)80164-0 Lea, 1999, Nitrogen metabolism in higher plants, 1 Li, 2008, Expression of caffeine biosynthesis gene in tea (Camellia sinensis), Z. Naturforsch., 63c, 267, 10.1515/znc-2008-3-417 Morita, 1998, Uptake, transport and assimilation of 15N-nitrate and 15N-ammonium in tea (Camellia sinensis L.) plants, Soil Sci. Plant Nutr., 44, 647, 10.1080/00380768.1998.10414488 Murashige, 1962, A revised medium for rapid growth and bioassays with tobacco tissue cultures, Physiol. Plant., 15, 473, 10.1111/j.1399-3054.1962.tb08052.x Ruan, 2007, Effect of nitrogen form and root-zone pH on growth and nitrogen uptake of tea (Camellia sinensis) plants, Ann. Bot., 99, 301, 10.1093/aob/mcl258 Sakato, 1949, The chemical constituents of tea. III. A new amide theanine (in Japanese), Nippon Nogeikagaku Kaishi, 23, 262, 10.1271/nogeikagaku1924.23.262 Sasaoka, 1962, Studies on the biosynthesis of theanine in tea seedlings: incorporation of glutamic-1-14C into theanine, Agric. Biol. Chem., 26, 265, 10.1271/bbb1961.26.265 Sasaoka, 1963, Studies on the biosynthesis of theanine in tea seedlings: synthesis of theanine by the homogenate of tea, Agric. Biol. Chem., 27, 467, 10.1271/bbb1961.27.467 Sasaoka, 1965, Some properties of the theanine synthesizing enzyme in tea seedlings, Agric. Biol. Chem., 29, 984, 10.1271/bbb1961.29.984 Suzuki, 2002, Enzymatic production of theanine, an “umami” component of tea, from glutamine and ethylamine with bacterial γ-glutamyltranspeptidase, Enz. Microb. Technol., 31, 884, 10.1016/S0141-0229(02)00213-2 Tachiki, 1998, γ-Glutamyl transfer reactions by glutaminase from Pseudomonas nitroreducens IFO 12694 and their application for the syntheses of theanine and γ-Glutamylmethylamide, Biosci. Biotechnol. Biochem., 62, 1279, 10.1271/bbb.62.1279 Takeo, 1974, L-Alanine as a precursor of ethylamine in Camellia sinensis, Phytochemistry, 13, 1401, 10.1016/0031-9422(74)80299-2 Yamaguchi, 2000, Umami and food palatability, J. Nutr., 130, 921, 10.1093/jn/130.4.921S