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Prof. Dr. Martin Steup



R. Cisek, D. Tokarz, L. Kontenis, V. Barzda and M. Steup (2018) Polarimetric second harmonic generation microscopy: an analytical tool for starch bioengineering. Starch/Staerke 70: Heft 1-2: 1700031


F. Nitschke, M.A. Sullivan, P. Wang, X. Zhao, E.E. Chown, A.M. Perri, L. Israelian, P. Bovolenta, S.R. de Cordoba, M. Steup, B.A. Minassian (2017): Abnormal glycogen chain length pattern, not hyperphosphorylation, is critical in Lafora disease. EMBO Mol. Med. 9:906-917.

J, Jüppner, U. Mubeen, A. Leisse, C. Caldana, H. Brust, M. Steup, ... & P. Giavalisco, (2017). Dynamics of lipids and metabolites during the cell cycle of Chlamydomonas reinhardtii. The Plant Journal 92: 331-343. 

J. Smirnova, A.R. Fernie, C.C.M. Spahn, and M. Steup (2017): Photometric assay of maltose and maltose-forming enzyme activity by using 4-alpha-glucanotransferase (DPE2) from higher plants. Analyt. Biochem. 532: 72-82.

M. A. Sullivan, S. Nitschke, M. Steup, B.A. Minassian, and F. Nitschke (2017) Pathogeneses of Lafora disease: transition of soluble glycogen to insoluble polyglucosan. Internat. J. Mol. Sciences 18: 1743; doi: 10?3390/ijms18081743.


F. Liu, Q. Zhao, N. Mano, Z. Ahmed, F. Nitschke, Y Cao, K. Chapman, M. Steup, I.J. Tetlow, M.J. Emes (2016) Modification of starch metabolism in transgenic Arabidopsis thaliana increases plant biomass and trebles oilseed production. Plant Biotechnol. J. 14: 976-985.


J. Smirnova,  A.R.Fernie, M. Steup (2015) Chapter 7. Starch Degradation. In: Starch: Metabolism and Structure (Nakamura Y, ed.). Springer, ISBN 978-4-431-55494-3 pg. 239-290.

M. Rading, M. Sandmann, M. Steup, D. Chiarugi, A.  Valleriani A (2015) Weak correlation of starch and volume in synchronized photosynthetic cells. Physical Review E, W91, 012711.

M. Steup (2015) "Raum und Zahl" in der Pflanzenphysiologie. In: Raum und Zahl im Fokus der Wissenschaften (H-J Petsche ed.) trafo ISBN 978-3-86464-082-7 pg. 77-110.

R. Cisek, D. Tokarz, M. Steup, I.J. Tetlow, M.J Emes, K.H. Hebelstrup, A. Blennow, V. Barzda (2015) Second harmonic generation microscopy investigation of the crystalline ultrastructure of three barley starch lines affected by hydration. Biomed. Opt. Express 6(10), 3694-3700.

S. Schwarte, F. Wegner, K. Havenstein, D. Groth, M. Steup, R. Tiedemann (2015) Sequence variation, differential expression, and divergent evolution in starch-related genes among accessions of Arabidopsis thaliana. Plant Mol. Biol. 87:489-519.


D. Hemme, D. Veyel, T. Muelhaus, F. Sommer, J. Jueppner, A.-K. Unger, M. Sandmann, I. Fehrle, S. Schoenfelder, M. Steup, S. Geimer, J. Kopka, P. Giavalisco, M. Schroda (2014) Systems-wide analysis of acclimation responses to long-term heat stress and recovery in the photosynthetic model organism Chlamydomonas reinhardtii. Plant Cell 26: 4270-4297.

H. Tenenboim, S. Smirnova, L. Willmitzer, M. Steup, Y. Brotman (2014) VMPI-deficient Chlamydomonas exhibits severely aberrant cell morphology and disrupted cytokinesis. BMC Plant Biology, 14: 121.

I. Malinova, S. Mahlow,  T. Alkseekh, T. Orawetz, A.R. Fernie, O. Baumann, M. Steup, J. Fettke (2014) Double knock-out mutants of Arabidopsis thaliana grown under normal conditions reveal that the plastidial phosphorylase (PHS1) participates in transitory starch metabolism. Plant Physiol. 164: 907- 921.

R. Cisek, D. Tokarz, S. Krouglov, M. Steup, M.J. Emes, I.J. Tetlow, V. Barzda  (2014) Second harmonic generation mediated by aligned water in starch granules. J. Phys. Chem. B 118: 14785-14794.

U. Cenci, F. Nitschke, M. Steup, B.A. Minassian, C. Colleoni, S.G. Ball (2014) Transition from glycogen to starch metabolism in Archaeplastida. Trends in Plant Science 19: 18-28.


C. Ruzanki, J. Smirnova, M. Rejzek, D. Cockburn, H.J. Pedersen, M. Pike,  W.G.T. Willats, B. Svensson, M. Steup, O. Ebenhoeh, A.M. Smith, R.A. Field (2013) A bacterial glucanotransferase can replace the complex maltose metabolism required for starch-to-sucrose conversion in leaves at night. J. Biol. Chem. 288: 28581-28598.

F. Nitschke, P. Wang, P. Schmieder, D.M. Girard, D.E. Awrey, T. Wang, J. Israelian, X. Zhao, J. Turnbull, M. Heydenreich, E. Kleinpeter, M. Steup, B.A. Minassian (2013) Hyperphosphorylation of glucosyl C6 carbons and altered structure of glycogen in the neurodegenerative epilepsy Lafora disease. Cell Metab. 17: 756-767.

H. Brust, S. Orzechowski, J. Fettke, M. Steup (2013) Starch synthesizing reaction and paths: in vitro and in vivo studies. J. Appl. Glycosci. 60: 3-20.

I. Malinova, M. Steup, J. Fettke (2013) Carbon transitions from either Calvin cycle or transitory starch to heteroglycas as revealed by 14C-labeling experiments using protoplasts from Arabidopsis. Physiol. Plant. 149: 25-44.

M.C.M. Martins, M. Hejazi, J. Fettke, M. Steup, R. Feil, U. Krause, S. Arrivault, D. Vosloh, C.M. Figueroa, A. Ivakov, U.P Yadav, M. Piques, D. Metzner, M. Stitt, J.E. Lunn (2013) Feedback inhibition of starch degradation in Arabidopsis leaves mediated by trehalose 6-phosphate. Plant Physiol. 163: 1142- 1163.

P. Schmieder, F. Nitschke, M. Steup, K. Mallow, E. Specker (2013) Determination of glucan phosphorylation using heteronuclear 1H, 13C double and 1H, 13C, 31P triple resonance NMR spectra. Magn. Res. Chem. 51: 655-661.

S. Schwarte, H. Brust, M. Steup, R. Tiedmann (2013) Intraspecific sequence variation and differential expression in starch synthase genes of Arabidopsis thaliana. BMC Res Notes. 6: 84.


A. Garz, M. Sandmann, M. Rading, S. Ramm, R. Menzel, M. Steup (2012) Cell-to-cell diversity in a synchronized Chlamydomonas culture as revealed by single cell analyses. Biophys. J. 103: 1078- 86.

E. Paparelli, S. Gonzali, S. Parlanti, G. Novi, F.M. Giorgi, F. Licausi, M. Kosmacz, R. Feil, J. Lunn, H. Brust, J. van Dongen, M. Steup, P. Perata (2012). Misexpression of a chloroplast aspartyl protease leads to severe growth defects and alters carbohydrate metabolism in Arabidopsis. Plant Physiol. 160: 1237-50.

J. Fettke, A.R. Fernie, M. Steup, (2012). Transitory starch and its degradation in higher plant cells. In: Essential Reviews in Experimental Biology, The Synthesis and Breakdown of Starch, Edited by I. J. Tetlow, SEB, London Vol.5: 309-372.

J. Fettke, L. Leifels, H. Brust, K. Herbst, M. Steup (2012). Two carbon fluxes to reserve starch in potato (Solanum tuberosum L.) tuber cells are closely interconnected but differently modulated by temperature. J. Exp. Bot. 63: 3011-3029.

M. Hejazi, J. Fettke, M. Steup (2012). Starch phosphorylation and dephosphorylation: The consecutive action of starch-related dikinases and phosphatases. In: Essential Reviews in Experimental Biology, The Synthesis and Breakdown of Starch, Edited by I. J. Tetlow, SEB, London Vol.5: 279-308.

M. Hejazi, M. Steup, J. Fettke (2012). The plastidial glucan, water dikinase (GWD) catalyses multiple phosphotransfer reactions. FEBS J. 279: 1953-66.

O. Ebenhoeh, A. Skupin, Ö. Kartal, S. Mahlow, M. Steup (2012). Thermodynamic characterisation of glucanotransferases. Beilstein institute proceedings129-147.

Y. Nakamura, M. Ono, C. Utsumi, M. Steup (2012). Functional Interaction between Plastidial Starch Phosphorylase and Starch Branching Enzymes from Rice during the Synthesis of Branched Maltodextrins. Plant Cell Physiol. 53: 869-878.


I. Malinova, M. Steup, J. Fettke (2011) Starch-related carbon fluxes in roots and leaves of Arabidopsis thaliana. Plant Signaling & Behavior 6,1060-1062.

I. Malinova, M. Steup, J. Fettke (2011) Starch-related heteroglycans in roots from Arabidopsis thaliana. J. Plant Physiol. 168,1406-1414. (Special Issue).

J. Fettke, A. Nunes-Nesi, A.R. Fernie, M. Steup (2011) Identification of a novel heteroglycan- interacting protein, HIP1.3, from Arabidopsis thaliana. J. Plant Physiol. 168,1415-1425 (Special Issue).

J. Fettke, I. Malinova, T. Albrecht, M. Hejazi, M. Steup (2011) Glucose 1-phosphate transport into protoplasts and chloroplasts from leaves of Arabidopsis thaliana.Plant Physiol. 155,1723-1734.

M. Steup, J. Fettke,  and M. Hejazi  (2011) The phosphorylation/dephosphorylation cycles in transitory starch metabolism. J. Appl. Glycosci. 58, 162-163.


H. Kunz, R. Häusler, J. Fettke, K. Herbst, P. Beljo, M. Gierth, K. Bell, M. Steup, I. Flügge, A. Schneider (2010) The role of plastidial glucose 6-phosphate/phosphate translocators in vegetative tissues of Arabidopsis thaliana mutants impaired in starch biosynthesis. Plant Biol. 12 (Suppl. 1), 115- 128.

J. Fettke, T. Albrecht, M. Hejazi, S. Mahlow, Y. Nakamura, M. Steup (2010) Glucose 1-phosphate is efficiently taken up by potato (Solanum tuberosum L.) tuber parenchyma cells and converted to reserve starch granules. New Phytol. 185, 663-675, doi: 10.1111/j.1469-8137.2009.01326.x.

M. Hejazi, J. Fettke, O. Kötting, S. Zeeman, M. Steup (2010) The laforin-like dual-specificity phosphatase SEX4 from Arabidopsis thaliana hydrolyses both C6- and C3-phosphate esters introduced by starch-related dikinases and thereby affects phase transition of α-glucans. Plant Physiol. 152, 711-722, online (as of 12/16/2009)

M. Steinfath, N. Strehmel, R. Peters, N. Schauer, D. Groth, J. Hummel, M. Steup, J. Selbig, J. Kopka, P. Geigenberger, J. van Dongen (2010) Discovering plant metabolic biomarkers for phenotype prediction using an untargeted approach. Plant Biotechnol. J. 8, 1-12

S. Comparat-Moss, O. Kötting, M. Stettler, C. Edner, A. Graf, S.E. Weise, S. Streb, W.-L. Lue, D. MacLean, S. Mahlow, G. Ritte, M. Steup, J. Chen, S.C. Zeeman, A.M. Smith (2010) A putative phosphatase, LSF1, is required for normal starch turnover in Arabidopsis leaves. Plant Physiol. 152, 685-697, online (as of 12/16/2009)


J. Li, P. Francisco, W. Zhou, C. Edner, M. Steup, G. Ritte, C.S. Bond, S.M. Smith (2009) Catalytically inactive b-amylase BAM4 required for starch breakdown in Arabidopsis leaves is a starch-binding protein. Arch. Biochem. Biophys. 489, 92-98.

M. Hejazi, J. Fettke, O. Paris, M. Steup (2009) The two plastidial starch-related dikinases sequentially phosphorylate glucosyl residues at the surface of both the A- and B-type allomorph of crystallized maltodextrins but the mode of action differs. Plant Physiology 150, 962-976, online (as of 4/24/2009).

Fettke, J., Malinova, I., Eckermann, N., Steup, M. (2009) Cytosolic Heteroglycans in Photoautotrophic and in Heterotrophic Plant Cells. Phytochemistry 70, 696-702.

Fettke, J., Hejazi, M., Smirnova, J., Höchel, E., Stage, M., Steup, M. (2009) Eukaryotic starch degradation: Integration of plastidial and cytosolic pathways. J. Exp. Bot. 60, 2907-2922

O. Koetting, D. Santelia, C. Edner, S. Eicke, Z. Marthaler, M. S. Gentry, S. Camparot-Moss, J. Chen, A. M. Smith, M. Steup, G. Ritte, S. C. Zeeman (2009) STARCH-EXCESS4 is a laforin-like phosphoglucan phosphatase required for starch degradation in Arabidopsis thaliana. Plant Cell 21, 334-346


C. Plancke, C. Colleoni, P. Deschamps, D. Dauvillée, Y. Nakamura, S. Haebel, M. Steup, A. Buléon, J.-L. Putaux, D. Dupeyre, C. d'Hulst, J.-P. Ral, W. Loeffelhardt, S.G. Ball (2008) The pathway of starch synthesis in the model Glaucophyte Cyanophora paradoxa. Eukar. Cell 7, 247-257

E. Leboeuf, P. Immerzeel, Y. Gibon, M. Steup, M. Pauly (2008) High throughput functional assessment of polysaccharide-active enzymes using MALDI-TOP mass spectrometry as exemplified on plant cell wall polysaccharides. Analyt. Biochem. 373, 9-17

J. Fettke, A. Nunes-Nesi, J. Alpers, M. Szkop, A.R. Fernie, M. Steup (2008) Alterations in cytosolic glucose phosphate metabolism affect structural features and biochemical properties of starch-related heteroglycans. Plant Phys. 148, 1614-1629

M. Hejazi, J. Fettke, S. Haebel, C. Edner, O. Paris, C. Frohberg, M. Steup, G. Ritte (2008) Glucan, water dikinase phosphorylates crystalline maltodextrins and thereby iniatiates solubilization. Plant. J. 55: 323-334 (issue cover by Hejazi et al.)

P. Deschamps, C. Colleoni, Y. Nakamura, E. Suzuki, J.-L. Putaux, A. Buléon, S. Haebel, G. Ritte, M. Steup, L. J. Falcón, D. Moreira, W. Loeffelhardt, J. N. Ral, C. Plancke, C. d'Hulst, D. Dauvillée, S. Ball (2008) Metabolic symbiosis and the birth of the plant kingdom. Mol. Biol. Evol., 25, 536-548

P. Deschamps, D. Guillebeault, J. Devassine, D. Dauvillée, S. Haebel, M. Steup, A. Buléon, J.-L. Pataux, M.-C. Slomianny, C. Colleoni, A. Devin, C. Plancke, S. Tomavo, E. d'Herelle, H. Moreau, S. Ball (2008) The heterotrophic dinoflagellate Crypthecodinium cohnii defines a model genetic system to investigate cytoplasmic starch synthesis. Eukar. Cell 7, 872-880


C. Edner, J. Li, T. Albrecht, S. Mahlow, M. Hejazi, H. Hussain, F. Kaplan, C. Guy, S. M. Smith, M. Steup, G. Ritte (2007) Glucan, water dikinase activity stimulates breakdown of starch granules by plastidial beta-amylases. Plant Physiol. 145, 17-28

J. Fettke, N. Eckermann, O. Kötting, G. Ritte, M. Steup (2007) Novel starch-related enzymes and carbohydrates. Cell. Mol. Biol. 52: OL883-OL904.


D. Dauvillée, V. Chochois, M. Steup, S. Haebel, N. Eckermann, G. Ritte,J.-Ph. Ral, Ch. Colleoni, G. Hicks, F. Wattebled, Ph. Deschamps, Ch. d'Hulst, L. Liénard, L. Cournac, J.-L. Putaux, D. Dupeyre, S. Ball (2006) Plastidial phosphorylase is required for normal starch synthesis in Chlamydomonas reinhardtii. Plant J., 48, 274-285

G. Ritte, M. Heydenreich, S. Mahlow, S. Haebel, O. Kötting, M. Steup (2006) Phosphorylation of C6- and C3-positions of glucosyl residues in starch is catalysed by distinct dikinases. FEBS Letters, 580, 4872-4876

J. Fettke, T. Chia, N. Eckermann, A. Smith, M. Steup (2006) A transglucosidase necessary for starch degradation and maltose metabolism in leaves at night acts on cytosolic heteroglycans (SHG). Plant J., 46, 668-684

Ph. Deschamps, I. Haferkamp, D. Dauvillée, S. Haebel, M. Steup, A. Buléon, J.-L. Putaux, Ch. Colleoni, Ch. d'Hulst, Ch. Plancke, S. Gould, U. Maier, H. E. Neuhaus, S. Ball (2006) The nature of the periplastidial pathway of starch synthesis in the cryptophyte Guillardia theta. Eukaryotic Cell, 5, 954-963.

O. Kreft, R. Georgieva, H. Bäumler, M. Steup, B. Müller-Röber, G. B. Sukhorukov, H. Möhwald (2006) Red blood cell templated polyelectrolyte capsules: a novel vehicle for the stable encapsulation of DNA and proteins. Macromol. Rapid Comm., 27, 435-440


E. Schmälzlin, J. van Dongen, I. Klimant, B. Marmodée, M. Steup, J. Fisahn, P. Geigenberger, H.-G. Löhmannsröben (2005) An optical multi-frequency phase modulation method using micro-beads for measuring intracellular oxygen concentrations in plants. Biophys J. 89, 1339-1345.

J. Fettke, S. Poeste, N. Eckermann, A. Tiessen, M. Pauly, P. Geigenberger, M. Steup (2005) Analysis of cytosolic heteroglycans from leaves of transgenic potato (Solanum tuberosum L.) plants that under- or overexpress the Pho 2 phosphorylase isozyme. Plant Cell Physiol. 46, 1987-2004.

J. Fettke, N. Eckermann, A. Tiessen, P. Geigenberger, M. Steup (2005) Identification, subcellular localization and biochemical characterization of water-soluble heteroglycans (SHG) in leaves of Arabidopsis thaliana L.: distinct SHG reside in the cytosol and in the apoplast. Plant J. 43, 568-585.

O. Kötting, K. Pusch, A. Tiessen, P. Geigenberger, M. Steup, G. Ritte (2005) Identification of a novel enzyme required for starch metabolism in Arabidopsis leaves. The phosphoglucan, water dikinase. Plant Physiol. 137, 242-252.


G. Ritte, A. Scharf, N. Eckermann, S. Haebel, M. Steup (2004) Phosphorylation of transitory starch is increased during degradation. Plant Physiol. 135, 2068-2077.

J. Fettke, N. Eckermann, S. Poeste, M. Pauly, M. Steup (2004) The glycan substrate of the cytosolic (Pho 2) phosphorylase isozyme from Pisum sativum L.: identification, linkage analysis and subcellular localization. Plant J. 39, 933-946.

N. Eckermann, J. Fettke, M. Pauly, E. Bazant, M. Steup (2004) Starch-metabolism related isozymes in higher plants. In: Proceedings of the XIIth International Congress on Genes, Gene Families and Isozymes. Berlin, July 19-24, 2003. (Schnarrenberger, C. and Wittmann-Liebold, B. eds.). Bologna: Medimond S.r.l., pp. 241-246.

T. Albrecht, S. Haebel, A. Koch, U. Krause, N. Eckermann, M. Steup (2004) Yeast glycogenin (Glg2p) produced in Escherichia coli is simultaneously glucosylated at two vicinal tyrosin residues but results in a reduced bacterial glycogen accumulation. Eur. J. Biochem. 271, 3978-3989.


G. Ritte, M. Steup, J. Kossmann, J. R. Lloyd (2003) Determination of the starch phosphorylating enzyme activity in plant extracts. Planta 216, 798-801.

S. Ball, L. Liénard, F. Wattebled, M. Steup, G. Hicks, C. d'Hulst (2003) Defining the functions of maltodextrin active enzymes in starch metabolism in the unicellular alga Chlamydomonas reinhardtii. Journal of Applied Glycoscience 50, 187-189.


D. Werner, O. Behrsing, G. Scharte, J. Woller, M. Steup, B. Micheel (2002) Monoclonal anti-diuron antibodies prevent inhibition of photosynthesis by diuron. FEBS Lett. 523, 95-98.

G. Grunwaldt, S. Haebel, Ch. Spitz, M. Steup, R. Menzel (2002) Multiple binding sites of fluorescein isothiocyanate moieties on myoglobin: Photophysical heterogeneity as revealed by ground- and excited-state spectroscopy. J. Photochem. Photobiol. B: Biology 67, 177-186.

G. Ritte, J. R. Lloyd, N. Eckermann, A. Rottmann, J. Kossmann, M. Steup (2002) The starch related R1 protein is an a-glucan, water dikinase. Proc. Natl. Acad. Sci. USA 99, 7166-7171.

N. Eckermann, J. Fettke, M. Steup (2002) Identification of polysaccharide binding proteins by affinity electrophoresis in inhomogeneous polyacrylamide gels and subsequent SDS-PAGE/MALDI-TOF analysis. Anal. Biochem. 304, 180-192.

R. Reimann, G. Ritte, M. Steup, K.J. Appenroth (2002) Association of a-amylase and the R1 protein with starch granules precedes the initiation of net starch degradation in turions of Spirodela polyrhiza (L.) Schleiden. Physiol. Plantarum 114, 2-12.


T. Albrecht, A. Koch, A. Lode, B. Greve, J. Schneider-Mergener, M. Steup (2001) Plastidic (Pho1- type) phosphorylase isoforms in potato (Solanum tuberosum L.) plants: expression analysis and immunochemical characterization. Planta 213, 602-613.

T.-S. Yu, H. Kofler, R.E. Häusler, D. Hille, U.-I. Flügge, S.C. Zeeman, A.M. Smith, J. Kossmann, J. Lloyd, G. Ritte, M. Steup, W.-L. Lue, J. Chen, A. Weber (2001) The Arabidopsis sex1 mutant is defective in the R1 protein, a general regulator of starch degradation in plants, and not in the chloroplast hexose transporter. Plant Cell13, 1907-1918.


G. Ritte, N. Eckermann, S. Haebel, R. Lorberth, M. Steup (2000) Compartmentation of the starch- related R1 protein in higher plants. Starch 52, 179-185.

G. Ritte, R. Lorberth, M. Steup (2000) Reversible binding of the starch-related R1 protein to the surface of transitory starch granules. Plant J. 21, 387-391.


J. Kehr, S. Haebel, S. Blechschmidt-Schneider, L. Willmitzer, M. Steup, J. Fisahn (1999) Analysis of phloem protein patterns from different organs of Cucurbita maxima Duch. by matrix-assisted laser desorption/ionization time of flight mass spectroscopy combined with sodium dodecyl sufate- polyacrilamide gel electrophoresis. Planta 207, 612-619.


T. Albrecht, B. Greve, K. Pusch, J. Koßmann, P. Buchner, U. Wobus, M. Steup (1998) Homodimers and heterodimers of Pho1-type phosphorylase isoforms inSolanum tuberosum L. as revealed by sequence-specific antibodies. Eur. J. Biochem. 251, 343-352.

S. Haebel, T. Albrecht, K. Sparbier, P. Walden, R. Körner, M. Steup (1998) Electrophoresis-related protein modification: alkylation of carboxy residues revealed by mass spectrometry. Electrophoresis 19, 679-686.


H.E. Neuhaus, E. Thom, M. Steup, K. Kampfenkel (1997) Characterization of a novel eukaryotic ATP/ADP translocator located in the plastid envelope of Arabidopsis thaliana L. Plant J. 11, 73-82.

B. Stahl, A. Linos, M. Karas, F. Hillenkamp, M. Steup (1997) Analysis of fructans from higher plants by matrix-assisted laser desorption/ionization mass spectrometry. Analyt. Biochem. 246, 195-204.

E. Duwenig, M. Steup, L. Willmitzer, J. Kossmann (1997) Antisense inhibition of cytosolic phosphorylase in potato plants (Solanum tuberosum L.) affects tuber sprouting and flower formation with only little impact on carbohydrate metabolism. Plant J. 12, 323-333.

E. Duwenig, M. Steup, J. Koßmann (1997) Induction of genes encoding plastidic phosphorylase from spinach (Spinacia oleracea L.) and potato (Solanum tuberosumL.) by exogenously supplied carbohydrates in excised leaf discs. Planta 203, 111-120.


U. Sonnewald, A. Basner, B. Greve, M. Steup (1995) A second L-type isozyme of potato glucan phosphorylase: cloning, antisense inhibition and expression analysis.Plant Mol. Biol. 27, 567-576.


B. Stahl, T. Klabunde, H. Witzel, B. Krebs, M. Steup, M. Karas, F. Hillenkamp (1994) The oligosaccharides of the Fe(III)-Zn(II) purple acid phosphatase of the red kidney bean. Determination of the structure by a combination of matrix-assisted laser desorption/ionization mass spectrometry and selective enzymic degradation.Eur. J. Biochem. 220, 321-330.

B. Stahl, S. Thurl, J. Zeng, M. Karas, F. Hillenkamp, M. Steup, G. Sawatzki (1994) Oligosaccharides from human milk as revealed by matrix-assisted laser desorption/ionization mass spectrometry. Analyt. Biochem. 223, 218-226.


M. Steup, Y. Yang, B. Greve, E.W. Weiler (1991) Characterization of a heteroglycan from higher plants. In: Recent Advances in Phloem Transport and Assimilate Compartmentation (J.L. BONNEMAIN, S. DELROIT, W.L. LUCAS, and J. DAINTY, eds.) Ouest Editions pp. 224-232.

B. Stahl, M. Steup, M. Karas, F. Hillenkamp (1991) Analysis of neutral oligosaccharides by matrix- assisted laser desorption/ionization mass spectrometry. Analyt. Chem. 63, 1463-1466.

M. Tacke, Y. Yang, M. Steup (1991) Multiplicity of soluble glucan synthase activity in spinach leaves: enzyme pattern and intracellular location. Planta 185, 220-226.

J. van Berkel, J. Conrads-Strauch, M. Steup (1991) Glucan-phosphorylase forms in cotyledons of Pisum sativum L.: Localization, developmental change, in-vitrotranslation, and processing. Planta 185, 432-439.

B. Greve, Y. Yang, M. Steup (1991) Monoclonal antibodies directed against a heteroglycan from higher plants. Plant Physiol. (Life Sci. Adv.) 10, 187-194.a


M. Steup (1990) Starch degrading enzymes. In: Methods in Plant Biochemistry. Vol. 3 (P.J. LEA; ed.) Academic Press pp. 103-128.

Y. Yang, B. Greve, M. Steup, E.W. Weiler (1990) A soluble polysaccharide fraction from higher plants: a possible physiological substrate of the cytosolic phosphorylase isozyme. In: Current Research in Photosynthesis Vol. IV (M. BALTSCHEFFSKY, ed.) Kluwer Academic Publ. pp. IV.15.99-102.

M. Steup, J. van Berkel, J. Conrads-Strauch (1990) In-vitro translation and processing of compartment-specific glucan phosphorylase isozymes from Pisum sativum L. In: Current Research in Photosynthesis Vol. IV (M. BALTSCHEFFSKY, ed.) Kluwer Academic Publ. pp. III.12.605-608.

Y. Yang and M. Steup (1990) A polysaccharide fraction from higher plants which strongly interacts with the cytosolic phosphorylase isozyme. I. Isolation and characterization. Plant Physiol. 94, 960- 969.


M. Steup, J. Conrads, J. van Berkel, Y. Yang (1989) Compartment-specific enzyme forms in higher plants. In: Braunschweig Symposium on Applied Plant Molecular Biology. Proceedings. pp. 199-204.

F. Marcus, S.P. Latshaw, M. Steup, K.-P. Gerbling (1989) Partial amino acid sequence of fructose- 1,6-bisphosphatase from the blue-green algae Synechococcus leopoliensis. Protein Seq. Data Anal. 2, 391-393.


M. Steup (1988) The role of phosphorylases in the photosynthetic carbon metabolism. In: Advances in Frontier Areas of Plant Biochemistry (R. SINGH and S.K. SAWHNEY, eds.) Prentice-Hall of India New Dehli pp. 127-146.

M. Steup (1988) Starch degradation. In: The Biochemistry of Plants Vol. 14 pp. 255-296.


K.-P. Gerbling, M. Steup, E. Latzko (1987) Chelates of fructose 1,6-bisphosphate-ions function as substrates and free fructose 1,6-bisphosphate-ions as inhibitors of fructose 1,6-bisphosphatase form B from Synechococcos leopoliensis. In: Proceedings of the VIIth International Congress on Photosynthesis (J. BIGGINS, ed.) Vol. 3pg. 6.479-6.482.

M. Steup, J. Conrads, J. van Berkel (1987) Compartment-specific phosphorylase forms from higher plants. In: Proceedings of the VIIth International Congress on Photosynthesis (J. BIGGINS, ed.) Vol. 3 pg. 6.479-6.482.


M. Steup, C. Schächtele, M. Melkonian (1986) Light-mediated changes in the plastidic phosphorylase pattern in shoots of Pisum sativum. Physiol. Plantarum 66, 234-244.

J. van Berkel, M. Steup, W. Völker, H. Robenek, U.I. Flügge (1986) Polypeptides of the chloroplast envelope membrane as visualized by immunological techniques. J. Histochem. Cytochem. 34, 577- 584.

K.-P. Gerbling, M. Steup, E. Latzko (1986) Fructose 1,6-bisphosphatase form B from Synechococcus leopoliensias hydrolyses both fructose- and sedoheptulose bisphosphate. Plant Physiol. 80, 716-720.

C. Schächtele and M. Steup (1986) a-1,4-glucan phosphorylases from spinach leaves. I. In situ localizatioan by indirect immunofluorescence. Planta 167, 444-451.

M. Steup and C. Schächtele: (1986) a-1,4-glucan phosphorylases from spinach leaves. II. Peptide patterns and immunological properties. A comparison with other phosphorylases. Planta 168, 222- 231.

J. Conrads, J. van Berkel, C. Schächtele, M. Steup (1986) Non-chloroplast a-1,4-glucan phosphorylase from pea leaves. Characterization and in-situ localization by indirect immunofluorescence. Biochim. Biophys. Acta 882, 452-463.


M. Stitt and M. Steup (1985) Starch and sucrose degradation. In: Encyclopedia of Plant Physiology. New Series Vol. 18: Higher Plant Cell Respiration (R. DOUCE and D.A. DAY, eds.) Springer-Verlag pp. 347-390.

K.-P. Gerbling, M. Steup, E. Latzko (1985) Fructose-1,6-bisphosphatase from Synechococcus leopoliensis. Substrate-dependent dimer-tetramer interconversion. Eur. J. Biochem. 147, 207-215.

E. Latzko, K.-P. Gerbling, M. Steup (1985) Characterization of fructose-1,6-bisphosphatase activity in Synechococcus leopoliensis. In: Regulation of Carbon Partitioning in Photosynthetic Tissues (R.L. HEATH and J. PREISS, eds.) pp. 63-75.