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1

Was opium known in 18th dynasty ancient Egypt? An examination of materials from the tomb of the chief royal architect Kha

Bisset, Norman G., Bruhn, Jan G., Curto, Silvio, Holmstedt, Bo, Nyman, Ulf, Zenk, Meinhart H.

Journal:

Journal of Ethnopharmacology

Year:

1994

Language:

english

File:

PDF, 1.78 MB

english, 1994

2

The transformation of neopinone to codeinone in morphine biosynthesis proceeds non-enzymatically

Jürgen Gollwitzer, Rainer Lenz, Norbert Hampp, Meinhart H. Zenk

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 252 KB

english, 1993

3

(E)-4-Hydroxy-3-methylbut-2-enyl Diphosphate: An Intermediate in the Formation of Terpenoids in Plant Chromoplasts

Wenyun Gao, Reik Loeser, Maja Raschke, Marco A. Dessoy, Michael Fulhorst, Henriette Alpermann, Ludger A. Wessjohann, Meinhart H. Zenk

Journal:

Angewandte Chemie

Year:

2002

Language:

english

File:

PDF, 98 KB

english, 2002

4

(E)-4-Hydroxy-3-methylbut-2-enyl Diphosphate: An Intermediate in the Formation of Terpenoids in Plant Chromoplasts

Wenyun Gao, Reik Loeser, Maja Raschke, Marco A. Dessoy, Michael Fulhorst, Henriette Alpermann, Ludger A. Wessjohann, Meinhart H. Zenk

Journal:

Angewandte Chemie International Edition

Year:

2002

Language:

english

File:

PDF, 98 KB

english, 2002

5

Biosynthesis of benzofuran derivatives in root cultures of Tagetes patula via phenylalanine and 1-deoxy-d-xylulose 5-phosphate

Lilla Margl, Christian Ettenhuber, István Gyurján, Meinhart H. Zenk, Adelbert Bacher, Wolfgang Eisenreich

Journal:

Year:

2005

Language:

english

File:

PDF, 330 KB

english, 2005

6

Stereospecificity of cinnamyl alcohol dehydrogenase and synthesis of stereospecifically labelled coniferyl alcohol

Martina Klischies, Joachim Stöckigt, Meinhart H. Zenk

Journal:

Year:

1978

Language:

english

File:

PDF, 296 KB

english, 1978

7

Biosynthesis of thiophenes in Tagetes patula

Lilla Margl, Wolfgang Eisenreich, Petra Adam, Adelbert Bacher, Meinhart H. Zenk

Journal:

Year:

2001

Language:

english

File:

PDF, 164 KB

english, 2001

8

Incorporation of phenethylisoquinolines into colchicine in isolated seeds of Colchicum autumnale

Amber Nasreen, Heidrun Gundlach, Meinhart H. Zenk

Journal:

Year:

1997

Language:

english

File:

PDF, 607 KB

english, 1997

9

Biotransformation of thebaine by cell cultures of Papaver somniferum and Mahonia nervosa

Rudolf Wilhelm, Meinhart H. Zenk

Journal:

Year:

1997

Language:

english

File:

PDF, 731 KB

english, 1997

10

Seven imidazole alkaloids from Lepidium sativum

Ulrich H Maier, Heidrun Gundlach, Meinhart H Zenk

Journal:

Year:

1998

Language:

english

File:

PDF, 195 KB

english, 1998

11

Biosynthesis of 2-C-methyl-D-erythritol in plants by rearrangement of the terpenoid precursor, 1-deoxy-D-xylulose 5-phosphate

Silvia Sagner, Wolfgang Eisenreich, Monika Fellermeier, Christoph Latzel, Adelbert Bacher, Meinhart H. Zenk

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 250 KB

english, 1998

12

The deoxyxylulose phosphate pathway of terpenoid biosynthesis in plants and microorganisms

Wolfgang Eisenreich, Matthias Schwarz, Alain Cartayrade, Duilio Arigoni, Meinhart H. Zenk, Adelbert Bacher

Journal:

Chemistry & Biology

Year:

1998

Language:

english

File:

PDF, 6.67 MB

english, 1998

13

Evolution and current status of the phytochemistry of nitrogenous compounds

Meinhart H. Zenk, Melanie Juenger

Journal:

Year:

2007

Language:

english

File:

PDF, 826 KB

english, 2007

14

Terpenoid Biosynthesis from 1-Deoxy-D-Xylulose in Higher Plants by Intramolecular Skeletal Rearrangement

Duilio Arigoni, Silvia Sagner, Christoph Latzel, Wolfgang Eisenreich, Adelbert Bacher and Meinhart H. Zenk

Journal:

Proceedings of the National Academy of Sciences

Year:

1997

Language:

english

File:

PDF, 1007 KB

english, 1997

15

Dimethylallyl Pyrophosphate Is Not the Committed Precursor of Isopentenyl Pyrophosphate during Terpenoid Biosynthesis from 1-Deoxyxylulose in Higher Plants

Duilio Arigoni, Wolfgang Eisenreich, Christoph Latzel, Silvia Sagner, Tanja Radykewicz, Meinhart H. Zenk and Adelbert Bacher

Journal:

Proceedings of the National Academy of Sciences

Year:

1999

Language:

english

File:

PDF, 863 KB

english, 1999

16

Stereochemical course of the reduction step in the formation of 2-C-methylerythritol from the terpene precursor 1-deoxyxylulose in higher plants

Arigoni, Duilio, Giner, José-Luis, Sagner, Silvia, Wungsintaweekul, Juraithip, Zenk, Meinhart H., Kis, Klaus, Bacher, Adelbert, Eisenreich, Wolfgang

Journal:

Chemical Communications

Year:

1999

Language:

english

File:

PDF, 86 KB

english, 1999

17

Unexpected Biosynthetic Precursors of Amarogentin − A Retrobiosynthetic 13C NMR Study

Chang-Zeng Wang, Ulrich H. Maier, Wolfgang Eisenreich, Petra Adam, Ingrid Obersteiner, Michael Keil, Adelbert Bacher, Meinhart H. Zenk

Journal:

European Journal of Organic Chemistry

Year:

2001

Language:

english

File:

PDF, 385 KB

english, 2001

18

ZNS-wirksame 4-Phenylpyrane: 9-Phenyl-9-piperidino-3-oxa-7-azabicyclo[3.3.1]nonan

Fritz Eiden, Michael Schmidt, Brigitte Deus-Neumann, Meinhart H. Zenk

Journal:

Archiv der Pharmazie

Year:

1987

File:

PDF, 308 KB

1987

19

Oxabenzomorphane: Über ZNS-Wirkungen von Hexahydro-2,7-methano-1,5-benzoxazoninen

Fritz Eiden, Peter Gmeiner, Jürgen Schünemann, Rosemarie Ruhoff, Meinhart Zenk

Journal:

Archiv der Pharmazie

Year:

1988

Language:

german

File:

PDF, 452 KB

german, 1988

20

Synthese und 1H- und 13C-NMR-spektroskopische Untersuchungen von monoterpenoiden Isochinolinen

Gerhard Höfle, Naotaka Nagakura, Meinhart H. Zenk

Journal:

European Journal of Inorganic Chemistry

Year:

1980

Language:

german

File:

PDF, 601 KB

german, 1980

21

A Proposed Mechanism for the Reductive Ring Opening of the Cyclodiphosphate MEcPP, a Crucial Transformation in the New DXP/MEP Pathway to Isoprenoids Based on Modeling Studies and Feeding Experiments

Wolfgang Brandt, Marco A. Dessoy, Michael Fulhorst, Wenyun Gao, Meinhart H. Zenk, Ludger A. Wessjohann

Journal:

Year:

2004

Language:

english

File:

PDF, 689 KB

english, 2004

22

ChemInform Abstract: Unexpected Biosynthetic Precursors of Amarogentin — A Retrobiosynthetic 13C NMR Study.

Chang-Zeng Wang, Ulrich H. Maier, Wolfgang Eisenreich, Petra Adam, Ingrid Obersteiner, Michael Keil, Adelbert Bacher, Meinhart H. Zenk

Journal:

Year:

2002

File:

PDF, 29 KB

2002

23

Wie schützen sich Pflanzen vor toxischen Schwermetallen?

Dr. rer. nat. Erwin Grill, Prof. Dr. Meinhart H. Zenk

Journal:

Chemie in unserer Zeit

Year:

1989

Language:

german

File:

PDF, 2.58 MB

german, 1989

24

A Facile Enzymatic Synthesis of Isotopically Labeled 2-Methyl-D-erythritol 2,4-Cyclodiphosphate by Spinach Chloroplast Stroma

Wenyun Gao, Maja Raschke, Henriette Alpermann, Meinhart H. Zenk

Journal:

Helvetica Chimica Acta

Year:

2003

Language:

english

File:

PDF, 142 KB

english, 2003

25

A Facile Cell Free Synthesis of Isotopically Labeled (E)-4-Hydroxy-3-methylbut-2-enyl Diphosphate, a Precursor of the Plant Hormone Zeatin

Maja Raschke, Monika Fellermeier, Meinhart H. Zenk

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 186 KB

english, 2005

26

A revision of the generally accepted pathway for the biosynthesis of the benzyltetrahydroisoquinoline alkaloid reticuline

Richard Stadler, Meinhart H. Zenk

Journal:

European Journal of Organic Chemistry

Year:

1990

Language:

english

File:

PDF, 830 KB

english, 1990

27

The Biosynthesis of the Cularine Alkaloids

Martin J. Mueller, Meinhart H. Zenk

Journal:

European Journal of Organic Chemistry

Year:

1993

Language:

english

File:

PDF, 779 KB

english, 1993

28

Autoradiographic immunoassay (ARIA): A rapid technique for the semiquantitative mass screening of haptens

Elmar W. Weller, Meinhart H. Zenk

Journal:

Analytical Biochemistry

Year:

1979

Language:

english

File:

PDF, 3.29 MB

english, 1979

29

Procedure for the enzymatic synthesis and isolation of cinnamoyl-CoA thiolesters using a bacterial system

Meinhart H. Zenk, Bernhard Ulbrich, Jochen Busse, Joachim Stöckigt

Journal:

Analytical Biochemistry

Year:

1980

Language:

english

File:

PDF, 437 KB

english, 1980

30

The homogentisate ring-cleavage pathway in the biosynthesis of acetate-derived naphthoquinones of the droseraceae

Randolf Durand, Meinhart H. Zenk

Journal:

Year:

1974

Language:

english

File:

PDF, 858 KB

english, 1974

31

Radioimmunoassay for the quantitative determination of scopolamine

Elmar W. Weiler, Joachim Stöckigt, Meinhart H. Zenk

Journal:

Year:

1981

Language:

english

File:

PDF, 500 KB

english, 1981

32

Mechanism for iridane skeleton formation in the biosynthesis of secologanin and indole alkaloids in Lonicera tatarica, Catharanthus roseus and suspension cultures of Rauwolfia serpentina

Shinichi Uesato, Satoko Kanomi, Akira Iida, Hiroyuki Inouye, Meinhart H. Zenk

Journal:

Year:

1986

Language:

english

File:

PDF, 331 KB

english, 1986

33

Immunologically active polysaccharides of Echinacea purpurea cell cultures

Hldebert Wagner, Hermann Stuppner, Wolfram Schäfer, Meinhart Zenk

Journal:

Year:

1988

Language:

english

File:

PDF, 709 KB

english, 1988

34

Homogeneous strictosidine synthase from cell suspension cultures of Rauvolfia serpentina

Norbert Hampp, Meinhart H. Zenk

Journal:

Year:

1988

Language:

english

File:

PDF, 507 KB

english, 1988

35

Bisbenzylisoquinoline biosynthesis in Berberis stolonifera cell cultures

Richard Stadler, Susanne Loeffler, Bruce K. Cassels, Meinhart H. Zenk

Journal:

Year:

1988

Language:

english

File:

PDF, 842 KB

english, 1988

36

(S)-norcoclaurine is the central intermediate in benzylisoquinoline alkaloid biosynthesis

Richard Stadler, Toni M. Kutchan, Meinhart H. Zenk

Journal:

Year:

1989

Language:

english

File:

PDF, 418 KB

english, 1989

37

S-adenosyl-l-methionine: 3′-hydroxy-N-methyl-(S)-coclaurine-4′-O-methyl transferase, a regio- and stereoselective enzyme of the (S)-reticuline pathway

Thomas Frenzel, Meinhart H. Zenk

Journal:

Year:

1990

Language:

english

File:

PDF, 742 KB

english, 1990

38

The hydroxylation step in the biosynthetic pathway leading from norcoclaurine to reticuline

Susanne Loeffler, Meinhart H. Zenk

Journal:

Year:

1990

Language:

english

File:

PDF, 530 KB

english, 1990

39

Purification and characterization of three isoforms of S-adenosyl-l-methionine: (R,S)-Tetrahydrobenzylisoquinoline-N-methyltransferase from Berberis koetineana cell cultures

Thomas Frenzel, Meinhart H. Zenk

Journal:

Year:

1990

Language:

english

File:

PDF, 682 KB

english, 1990

40

Partial purification and properties of S-adenosyl-l-methionine: (S)-tetrahydroprotoberberinecis-N-methyltransferase from suspension-cultured cells of Eschscholtzia and Corydalis

Martina Rueffer, Gitta Zumstein, Meinhart H. Zenk

Journal:

Year:

1990

Language:

english

File:

PDF, 618 KB

english, 1990

41

Elicitor induction and characterization of microsomal protopine-6-hydroxylase, the central enzyme in benzophenanthridine alkaloid biosynthesis

Takao Tanahashi, Meinhart H. Zenk

Journal:

Year:

1990

Language:

english

File:

PDF, 1009 KB

english, 1990

42

6. Chasing the enzymes of secondary metabolism: Plant cell cultures as a pot of gold

Meinhart H. Zenk

Journal:

Year:

1991

Language:

english

File:

PDF, 383 KB

english, 1991

43

Purification and properties of 1,2-dehydroreticuline reductase from Papaver somniferum seedlings

Wanchai De-Eknamkul, Meinhart H. Zenk

Journal:

Year:

1992

Language:

english

File:

PDF, 889 KB

english, 1992

44

Formation of salutaridine from (R)-reticuline by a membrane-bound cytochrome P-450 enzyme from Papaver somniferum

Roswitha Gerardy, Meinhart H. Zenk

Journal:

Year:

1992

Language:

english

File:

PDF, 852 KB

english, 1992

45

Biosynthesis of indigo precursors in higher plants

Zhi-Qiang Xia, Meinhart H. Zenk

Journal:

Year:

1992

Language:

english

File:

PDF, 339 KB

english, 1992

46

Phytochelatins protect plant enzymes from heavy metal poisoning

Ralf Kneer, Meinhart H. Zenk

Journal:

Year:

1992

Language:

english

File:

PDF, 562 KB

english, 1992

47

Enzymic 10-hydroxylation and 10-O-methylation of dihydrosanguinarine in dihydrochelirubine formation by Eschscholtzia

Wanchai De-Eknamkul, Takao Tanahashi, Meinhart H. Zenk

Journal:

Year:

1992

Language:

english

File:

PDF, 368 KB

english, 1992

48

Metabolism of (S)-reticuline in an alkaloid non-producing cell culture strain of Thalictrum tuberosum

B. Schneider, Meinhart H. Zenk

Journal:

Year:

1993

Language:

english

File:

PDF, 534 KB

english, 1993

49

Unusual methyl transfer in the biosynthesis of aporphine and protoberberine alkaloids

Bernd Schneider, Meinhart H. Zenk

Journal:

Year:

1993

Language:

english

File:

PDF, 644 KB

english, 1993

50

S-adenosyl-l-methionine:(S)-coclaurine-N-methyltransferase from Tinospora cordifolia

Susanne Loeffler, Brigitte Deus-Neumann, Meinhart H. Zenk

Journal:

Year:

1995

Language:

english

File:

PDF, 622 KB

english, 1995