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Number of items: 20.

Article

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

Rüffer, Martina and Zenk, Meinhart H. (1994): Canadine synthase from Thalictrum tuberosum cell cultures catalyses the formation of the methylenedioxy bridge in berberine synthesis. In: Phytochemistry, Vol. 36, No. 5: pp. 1219-1223 [PDF, 543kB]

Rüffer, Martina and Zumstein, G. and 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, Vol. 29, No. 12: pp. 3727-3733 [PDF, 632kB]

Galneder, E. and Rüffer, Martina and Wanner, G. and Tabata, M. and Zenk, Meinhart H. (1988): Alternative final steps in berberine biosynthesis in Coptis japonica cell cultures. In: Plant Cell Reports, Vol. 7, No. 1: pp. 1-4 [PDF, 613kB]

Rüffer, Martina and Zenk, Meinhart H. (1987): Enzymatic formation of protopines by a microsomal cytochrome P-450 system of Corydalis vaginans. In: Tetrahedron Letters, Vol. 28, No. 44: pp. 5307-5310 [PDF, 217kB]

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

Rüffer, Martina and 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, Vol. 27, No. 46: pp. 5603-5604 [PDF, 120kB]

Rüffer, Martina and Zenk, Meinhart H. (1986): Columbamine, the central intermediate in the late stages of protoberberine biosynthesis. In: Tetrahedron Letters, Vol. 27, No. 8: pp. 923-924 [PDF, 136kB]

Mümmler, S. and Rüffer, Martina and Nagakura, Naotaka and 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, Vol. 4, No. 1: pp. 36-39 [PDF, 309kB]

Zenk, Meinhart H. and Rüffer, Martina and Amann, Manfred and Deus-Neumann, Brigitte and Nagakura, Naotaka (1985): Benzylisoquinoline Biosynthesis by Cultivated Plant Cells and Isolated Enzymes. In: Journal of Natural Products, Vol. 48, No. 5: pp. 725-738 [PDF, 829kB]

Rüffer, Martina and Ekundayo, O. and Nagakura, Naotaka and Zenk, Meinhart H. (1983): Biosynthesis of the protoberberine alkaloid jatrorrhizine. In: Tetrahedron Letters, Vol. 24, No. 26: pp. 2643-2644 [PDF, 131kB]

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

Schumacher, H. M. and Rüffer, Martina and Nagakura, Naotaka and 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, Vol. 49: pp. 131-137 [PDF, 1MB]

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

Rüffer, Martina and El-Shagi, Hannemarie and Nagakura, Naotaka and Zenk, Meinhart H. (1981): (S)norlaudanosoline synthase. the first enzyme in the benzylisoquinoline biosynthetic pathway. In: FEBS Letters, Vol. 129, No. 1: pp. 5-9 [PDF, 631kB]

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

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

Rüffer, Martina and Nagakura, Naotaka and Zenk, Meinhart H. (1978): Strictosidine, the common precursor for monoterpenoid indole alkaloids with 3 α and 3 β configuration. In: Tetrahedron Letters, Vol. 19, No. 18: pp. 1593-1596 [PDF, 228kB]

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

Book Section

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

This list was generated on Sun Sep 21 12:06:09 2014 CEST.