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Biosynthesis and accumulation of rosmarinic acid in suspension cultures ofColeus blumei
Authors:Maike Petersen  Elisabeth Szabo  Juliane Meinhard  Barbara Karwatzki  Claudia Gertlowski  Bettina Kempin  Elisabeth Fuß
Institution:(1) Institut für Entwicklungs- und Molekularbiologie der Pflanzen, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, D-40225 Düsseldorf, Germany
Abstract:This communication reviews data on the accumulation and biosynthesis of rosmarinic acid in cell suspension cultures ofColeus blumei. The influence of the medium, mainly the carbohydrate source on growth and rosmarinic acid production in these cell cultures is described. The biosynthetic pathway of rosmarinic acid was elucidated inColeus blumei cell cultures: eight enzymatic activities are involved in the transformation of the precursors phenylalanine and tyrosine to the end product rosmarinic acid.Abbreviations CAH cinnamic acid 4-hydroxylase - 4CL 4-coumarate:CoA ligase - HPPR hydroxyphenylpyruvate reductase - 3-H hydroxycinnamoyl-hydroxyphenyllactate 3-hydroxylase - 3prime-H hydroxycinnamoyl-hydroxyphenyllactate 3prime-hydroxylase - PAL phenylalanine ammonia-lyase - RAS rosmarinic acid synthase (hydroxycinnamoyl-CoA:hydroxyphenyllactate hydroxycinnamoyl transferase) - TAT tyrosine aminotransferase
Keywords:biosynthesis  caffeic acid esters  Coleus blumei (Lamiaceae)  plant cell cultures  rosmarinic acid  secondary product formation
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