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Gruppiert nach: Dokumententyp | Veröffentlichungsdatum
Springe zu: 1994 | 1990 | 1988 | 1987 | 1986 | 1985 | 1983 | 1981 | 1979 | 1978
Anzahl der Publikationen: 20

1994

Rüffer, Martina und Zenk, Meinhart H. (1994): Canadine synthase from Thalictrum tuberosum cell cultures catalyses the formation of the methylenedioxy bridge in berberine synthesis. In: Phytochemistry, Bd. 36, Nr. 5: S. 1219-1223 [PDF, 543kB]

Rüffer, Martina; Bauer, Wolfgang und Zenk, Meinhart H. (1994): The formation of corydaline and related alkaloids in Corydalis cava in vivo and in vitro. In: Canadian Journal of Chemistry, Bd. 72: S. 170-175 [PDF, 1MB]

1990

Rüffer, Martina; Zumstein, G. und Zenk, Meinhart H. (1990): Partial purification and properties of S-Adenosylmethionine. (S)-tetrahydroprotoberberine-cis-N-methyltransferse from suspension cultured cells of Eschscholtzia and Corydalis. In: Phytochemistry, Bd. 29, Nr. 12: S. 3727-3733 [PDF, 632kB]

1988

Galneder, E.; Rüffer, Martina; Wanner, G.; Tabata, M. und Zenk, Meinhart H. (1988): Alternative final steps in berberine biosynthesis in Coptis japonica cell cultures. In: Plant Cell Reports, Bd. 7, Nr. 1: S. 1-4 [PDF, 613kB]

1987

Rüffer, Martina und Zenk, Meinhart H. (1987): Enzymatic formation of protopines by a microsomal cytochrome P-450 system of Corydalis vaginans. In: Tetrahedron Letters, Bd. 28, Nr. 44: S. 5307-5310 [PDF, 217kB]

Rüffer, Martina und Zenk, Meinhart H. (1987): Distant precursors of benzylisoquinoline alkaloids and their enzymatic formation. In: Zeitschrift für Naturforschung, Bd. 42c: S. 319-332 [PDF, 3MB]

1986

Rüffer, Martina und Zenk, Meinhart H. (1986): S-adenosyl-l-methionine: (S) -7,8,13, 14-tetrahydroberberine--n-methyltransferase, a branch point enzyme in the biosynthesis of benzophenanthridine and protopine alkaloids. In: Tetrahedron Letters, Bd. 27, Nr. 46: S. 5603-5604 [PDF, 120kB]

Rüffer, Martina und Zenk, Meinhart H. (1986): Columbamine, the central intermediate in the late stages of protoberberine biosynthesis. In: Tetrahedron Letters, Bd. 27, Nr. 8: S. 923-924 [PDF, 136kB]

1985

Mümmler, S.; Rüffer, Martina; Nagakura, Naotaka und Zenk, Meinhart H. (1985): S-adenosyl-L-methionine: (S)-scoulerine 9-O-methyltransferase, a highly stereo- and regio-specific enzyme in tetrahydroprotoberberine biosynthesis. In: Plant Cell Reports, Bd. 4, Nr. 1: S. 36-39 [PDF, 309kB]

Rüffer, Martina (1985): The production of isoquinoline alkaloids by plant sell cultures. In: Philipson, John D. (Hrsg.): The chemistry and biology of isoquinoline alkaloids. Berlin u.a.: Springer. S. 265-280 [PDF, 1MB]

Zenk, Meinhart H.; Rüffer, Martina; Amann, Manfred; Deus-Neumann, Brigitte und Nagakura, Naotaka (1985): Benzylisoquinoline Biosynthesis by Cultivated Plant Cells and Isolated Enzymes. In: Journal of Natural Products, Bd. 48, Nr. 5: S. 725-738 [PDF, 829kB]

1983

Rüffer, Martina; Ekundayo, O.; Nagakura, Naotaka und Zenk, Meinhart H. (1983): Biosynthesis of the protoberberine alkaloid jatrorrhizine. In: Tetrahedron Letters, Bd. 24, Nr. 26: S. 2643-2644 [PDF, 131kB]

Rüffer, Martina; Nagakura, Naotaka und Zenk, Meinhart H. (1983): A highly specific O-methyltransferase for nororientaline synthesis isolated from Argemone platyceras cell cultures. In: Planta Medica, Bd. 49: S. 196-198 [PDF, 1MB]

Schumacher, H. M.; Rüffer, Martina; Nagakura, Naotaka und Zenk, Meinhart H. (1983): Partial Purification and Properties of S-Adenosylmethionine. (R), (S)-Norlaudanosoline-6-O-Methyltransferase from Eschscholtzia tenuifolia Cell Cultures. In: Planta Medica, Bd. 49: S. 131-137 [PDF, 1MB]

Schumacher, H. M.; Rüffer, Martina; Nagakura, Naotaka und Zenk, Meinhart H. (1983): Partial purification and properties of (S)-norlaudanosoline synthase from Eschscholtzia tenuifolia cell cultures. In: Planta Medica, Bd. 48: S. 212-220 [PDF, 2MB]

1981

Rüffer, Martina; El-Shagi, Hannemarie; Nagakura, Naotaka und Zenk, Meinhart H. (1981): (S)norlaudanosoline synthase. the first enzyme in the benzylisoquinoline biosynthetic pathway. In: FEBS Letters, Bd. 129, Nr. 1: S. 5-9 [PDF, 631kB]

1979

Rüffer, Martina; Kan-Fan, Christiane; Husson, Henri-Phillipe; Stöckigt, Joachim und Zenk, Meinhart H. (1979): 4,21-Dehydrogeissoschizine, an intermediate in heteroyohimbine alkaloid biosynthesis. In: Journal of the Chemical Society, Chemical Communications: S. 1016-1018 [PDF, 204kB]

Nagakura, Naotaka; Rüffer, Martina und Zenk, Meinhart H. (1979): The biosynthesis of monoterpenoid indole alkaloids from strictosidine. In: Journal of the Chemical Society, Perkin Transactions 1: S. 2308-2312 [PDF, 650kB]

1978

Rüffer, Martina; Nagakura, Naotaka und Zenk, Meinhart H. (1978): Strictosidine, the common precursor for monoterpenoid indole alkaloids with 3 α and 3 β configuration. In: Tetrahedron Letters, Bd. 19, Nr. 18: S. 1593-1596 [PDF, 228kB]

Stöckigt, Joachim; Rüffer, Martina; Zenk, Meinhart H. und Hoyer, G. A. (1978): Indirect identification of 4,21-dehydrocorynenantheinaldehyde as an intermediate in the biosynthesis of ajmalicine and related alkaloids. In: Planta Medica, Bd. 33: S. 188-192 [PDF, 713kB]

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