Jens Kossmann

Jens Kossmann

My research specializes in elucidating the mechanisms by which polysaccharides are manufactured and in understanding the regulation of carbohydrate metabolism and partitioning in plants. The biggest contribution of my team was to identify the enzyme that phosphorylates starch. This work still keeps us busy, as we are still on the way to discovering how the phosphorylation of storage glucans helps determine the regulation of their turnover in different biological systems. This work has also triggered a range of activities in our lab to identify components of the biosynthesis of other polysaccharides that carry different substitutions. The work on carbohydrate partitioning is mainly done in sugarcane with the aim of elevating the sucrose content of the crop. We now also apply our knowledge to manipulate carbohydrate partitioning in a range of commercially important fruit tissues.

List of Publications

  • George GM, van der Merwe M, Nunes-Nesi A, Bauer R, Fernie AR, Kossmann J, Lloyd JR. Virus-Induced Gene Silencing of plastidial soluble inorganic pyrophosphatase impairs essential leaf anabolic pathways and reduces drought stress tolerance in Nicotiana benthamiana 1[w][OA]. Plant Physiology 2010; 154 : 55-66
  • Basson CE, Groenewald JH, Kossmann J, Cronje C, Bauer R. Sugar and acid-related quality attributes and enzyme activities in strawberry fruits: Invertase is the main sucrose hydrolyzing enzyme. Food Chemistry 2010; 121(4) : 1156-1162
  • Bauer R, du Toit M, Kossmann JM. Influence of environmental parameters on production of the acrolein precursor 3-hydroxypropionaldehyde by Lactobacillus reuteri DSMZ 20016 and its accumulation by wine lactobacilli. International Journal of Food Microbiology 2010; 137 : 28-31
  • Koetting O, Kossmann J, Zeeman S, Lloyd JR. Regulation of starch metabolism: the age of enlightment? Current Opinion in Plant Biology 2010; 13 : 321-329
  • Luetken H, Lloyd JR, Glaring MA, Baunsgaard L, Laursen KH, Haldrup A, Kossmann J, Blennow A. Repression of both isoforms of disproportionating enzyme leads to higher malto-oligosaccharide content and reduced growth in potato. Planta 2010; 232 : 1127-1139
  • Rossouw D, Kossmann J, Botha FC, Groenewald JH. Reduced neutral invertase activity in the culm tissues of transgenic sugarcane plants results in adecrease in respiration and sucrose cycling and an increase in the sucrose to hexose ratio. Functional Plant Biology 2010; 37 : 22-31
  • van der Merwe M, Groenewald JH, Stitt M, Kossmann J, Botha FC. Downregulation of pyrophosphate: D-fructose-6-phosphate 1-phosphotransferase activity in sugarcane culms enhances sucrose accumulation due to elevated hexose-phosphate levels. Planta 2010; 231(3) : 595-608
  • Zeeman S, Kossmann J, Smith AM. Starch: Its metabolism, evolution, and biotechnological modification in plants. Annual Review of Plant Biology 2010; 61 : 209-234
  • van der Vyver C, Stander C, Kossmann J, Groenewald JH. Establishment of alternative selection systems for transgenic sugarcane callus. Aspects of Applied Biologists 2010 : 291-295
  • Bauer R, Bekker JP, van Wyk N, du Toit C, Dicks LMT, Kossmann J. Exopolysaccharide production by lactose-hydrolyzing bacteria isolated from traditionally fermented milk. International Journal of Food Microbiology 2009.02.020
  • Nashilevitz S, Melamed-Bessudo C, Aharoni A, Kossmann J, Wolf S, Levy AA. The legwd mutant uncovers the role of starch phosphorylation in pollen development and germination in tomato. The Plant Journal 2009; 57 : 1-13
  • Sun, H, Scharff-Poulsen, AM, Gu, H, Jakobsen, I, Kossmann, JM, Frommer, WB, Almdal, K (2008) Phosphate sensing by fluorescent reporter proteins embedded in polyacrylamide nanoparticles. ACSNano, 2, 19-24
  • Rossouw D, Bosch S, Kossmann JM, Botha FC & Groenewald J-H (2007). Down-regulation of neutral invertase activity in sugarcane cell suspension cultures leads to increased sucrose accumulation. Functional Plant Biology 34: 490-498.
  • Gu H, Lalonde S, Okumoto S, Looger LL, Scharff-Poulsen AM, Grossman AR, Kossmann J, Jakobsen I, Frommer WB (2006) A novel analytical method for in vivo phosphate tracking. FEBS Letters, 580, 5885-5893
  • Bucher, M., Kossmann, J (2006) Molecular Physiology of the Mineral Nutrition of the Potato. In: Potato biology and biotechnology. Advances and perspectives. Vreugdenhil, D. (ed.), Elsevier, Amsterdam, pp. 311-327
  • Geigenberger, P., Regierer, B., Leisse, A., Urbanczyk-Wochniak, E., Springer, F.,  van Dongen, J., Kossmann, J., Fernie, A.R. (2005) Inhibition of de-novo pyrimidine synthesis in growing potato tubers leads to a compensatory stimulation of the pyrimidine salvage-pathway and a subsequent increase in biosynthetic performance. Plant Cell, 17, 2077-2088
  • Lloyd, J.R., Kossmann, J., Ritte, G. (2005)  Leaf starch degradation comes out of the shadows. Trends Plant Sci., 10, 130-
  • Zimmermann, P., Regierer, B., Kossmann, J., Frossard, E., Amrhein, N., Bucher, M. (2004) Differential expression of three purple acid phosphatases from potato. Plant Biol., 6, 519-528
  • Obiadalla-Ali H, Fernie AR, Lytovchenko A, Kossmann J, Lloyd JR (2004) Inhibition of chloroplastic fructose 1,6-bisphosphatase in tomato fruits leads to decreased fruit size, but only small changes in carbohydrate metabolism. Planta, 219, 533-540
  • Usadel B, Schluter U, Molhoj M, Gipmans M, Verma R, Kossmann J, Reiter WD, Pauly M (2004) Identification and characterization of a UDP-D-glucuronate 4-epimerase in Arabidopsis. FEBS Lett., 569, 327-331
  • Schulze S, Mant A, Kossmann J, Lloyd JR (2004) Identification of an Arabidopsis inorganic pyrophosphatase capable of being imported into chloroplasts. FEBS Lett., 565, 101-105.
  • Lloyd JR, Blennow A, Burhenne K, Kossmann J (2004) Repression of a novel isoform of disproportionating enzyme (stDPE2) in potato leads to inhibition of starch degradation in leaves but not tubers stored at low temperature. Plant Physiol., 134, 1347-1357
  • Geigenberger P, Regierer B, Lytovchenko A, Leisse A, Schauer N, Springer F, Kossmann J, Fernie AR (2004) Heterologous expression of a ketohexokinase in potato plants leads to inhibited rates of photosynthesis, severe growth retardation and abnormal leaf development. Planta, 218, 569-578.
  • Obiadalla-Ali H, Fernie AR, Kossmann J, Lloyd JR (2004) Developmental analysis of carbohydrate metabolism in tomato (Lycopersicon esculentum cv. Micro-Tom) fruits. Physiol. Plant., 120, 196-204 .
  • Ritte, G., Steup, M.,  Kossmann, J., Lloyd, J.R. (2003)  Determination of the starch-phosphorylating enzyme activity in plant extracts. Planta, 216, 798-801
  • Larsen, H.; Kossmann, J.; Sønderberg Petersen, L. (2003)  Summary and main conclusions. In: Larsen, H.; Kossmann, J.; Sønderberg Petersen, L. (eds.), Risø National Laboratory (DK). Systems Analysis Department; Risø National Laboratory (DK). Plant Research Department. Risø energy report 2. New and emerging bioenergy technologies. Risø-R-1430(EN) p. 5-7
  • Dannemand Andersen, P.; Christensen, J.M.; Kossmann, J.; Koukios, E. (2003)  Emerging and future bioenergy technologies. In: Larsen, H.; Kossmann, J.; Sønderberg Petersen, L. (eds.), Risø National Laboratory (DK). Systems Analysis Department; Risø National Laboratory (DK). Plant Research Department. Risø energy report 2. New and emerging bioenergy technologies. Risø-R-1430(EN) p. 18-22
  • Körbitz, W.; Kossmann, J. (2003)  Production and use of biodiesel. In: Larsen, H.; Kossmann, J.; Sønderberg Petersen, L. (eds.), Risø National Laboratory (DK). Systems Analysis Department; Risø National Laboratory (DK). Plant Research Department. Risø energy report 2. New and emerging bioenergy technologies. Risø-R-1430(EN)  p. 30-34
  • Regierer, B., Fernie, A.R., Springer, F., Perez-Melis, A., Koehl, K.,Willmitzer, L., Geigenberger, P.,Kossmann, J. (2002) Starch content and yield increase massively as a result of altering adenylate pools in transgenic plants. Nature Biotechnol., 20, 1256 – 1260
  • Westram A, Lloyd JR, Roessner U, Riesmeier J, Kossmann J. (2002) Increases of 3-phosphoglyceric acid in potato plants through antisense reduction of cytoplasmic phosphoglycerate mutase impairs photosynthesis and growth, but does not increase starch contents. Plant Cell Environ., 25, 1133-1143
  • Scheidig, A., Fröhlich, A., Schulze, S., Lloyd, J.R., Kossmann, J. (2002) Downregulation of a chloroplast-targeted  -amylase leads to a starch-excess phenotype in leaves. Plant J., 30, 581-591.
  • Ritte G. Lloyd JR. Eckermann N. Rottmann A. Kossmann J. Steup M. (2002) The starch-related R1 protein is an alpha-glucan, water dikinase. PNAS, 99, 7166-7171.
  • Andralojc PJ. Keys AJ. Kossmann J. Parry MAJ. (2002) Elucidating the biosynthesis of 2-carboxyarabinitol 1-phosphate through reduced expression of chloroplastic fructose 1,6-bisphosphate phosphatase and radiotracer studies with (CO2)-C-14. PNAS, 99, 4742-4747.
  • Rasmussen, S.K.; Kossmann, J.M., Bioenergy from waste. (2002) In: Larsen, H.; Sønderberg Petersen, L. (eds.), Risø National Laboratory (DK). Systems Analysis Department. Risø energy report 1. New and emerging technologies - options for the future. Risø-R-1351(EN) (2002) p. 40-42
  • Altmann, T., Kossmann, J. (2001) Photosynthesis and primary metabolism. Trends in Plant Sciences, 6, 93-94
  • Tien-Shin Yu, Heike Kofler, Rainer E. Häusler, Diana Hille, Ulf-Ingo Flügge, Samuel C. Zeeman, Alison M. Smith, Jens Kossmann, James Lloyd, Gerhard Ritte, Martin Steup, Wei-Ling Lue, Jychian Chen, and Andreas 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 Cell, 13, 1907-1918.
  • Romanov, G.A.,  Aksenova, N.P., Konstantinova, T.N., Golyanovskaya, S.A., Kossmann, J., Willmitzer, L. (2000) Effect of indole-3-acetic acid and kinetin on tuberisation parameters of different cultivars and transgenic lines of potato in vitro. Plant Growth Regulation, 32,  245-251.
  • Tauberger, E., Fernie, A.R., Emmermann, M., Renz, A., Kossmann, J., Willmitzer, L., Trethewey, R. N. (2000) Antisense inhibition of plastidial phosphoglucomutase provides compelling evidence that potato tuber amyloplasts import carbon from the cytosol in the form of glucose-6-posphate. Plant J., 23, 43-53
  • Aksenova, N.P., Konstantinova, T.N., Golyanovskaya, S.A., Kossmann, J., Willmitzer, L., Romanov, G.A. (2000) Transformed potato plants as a model for studying the hormonal and carbohydrate regulation of tuberization. Russ. J. Plant Physiol., 47, 370-379.
  • Kossmann, J., Lloyd, J.R. (2000) Understanding and influencing starch biochemistry. Crit. Rev. Plant Sci., 19, 171-226
  • van Voorthuysen, T., Regierer, B., Springer, F., Dijkema, C., Vreugdenhil, D., Kossmann, J., (2000) Introduction of polyphosphate as a novel phosphate pool in the chloroplast of transgenic potato plants modifies carbohydrate partitioning. J. Biotech., 77, 65-80
  • Regierer, B., Springer, F., Kossmann, J. (2000) A European approach towards phosphate efficient plants. In: Phytosfere ´99-Highlights in European Plant Biotechnology (de Vries, G.E., Metzlaff, K. eds.) Elsevier Science B.V., Amstersdam, Nl., 235-243
  • Lloyd, J.R., Springer, F., Buléon, A., Müller-Röber, B., Willmitzer, L., Kossmann, J. (1999) The influence of alterations in ADP glucose pyrophosphorylase activities on starch structure and composition in potato tubers. Planta, 209, 230-238
  • Aksenova, N.P., Konstantinova, T.N., Golyanovskaya, S.A., Schmülling, T., Kossmann, J., Willmitzer, L., Romanov, G.A. (1999) In vitro growth and tuber formation by transgenic potato plants harboring rolC or rolB genes under control of the patatin promoter. Russ. J. Plant Physiol. 46, 513-519.
  • Heyer, A.G., Lloyd, J.R., Kossmann, J. (1999) Production of modified polymeric carbohydrates. Curr. Opinion Biotechnol., 10, 169-174
  • Kossmann, J., Abel., G.J.W., Springer, F., Lloyd, J., Willmitzer, L. (1999) Cloning and functional analysis of a cDNA encoding a starch synthase from potato (Solanum tuberosum L.) that is predominantly expressed in leaf tissue. Planta, 208, 503-511.
  • Keller, R., Springer, F., Renz, A., Kossmann, J. (1999) Antisense inhibition of the GDP-mannose pyrophosphorylase reduces the ascorbate content in transgenic plants leading to developmental changes during senescence. Plant J., 19, 131-141
  • Lloyd, J.R., Landschütze, V., Kossmann, J. (1999) Simultanous antisense inhibition of two starch synthase isoforms in potato tubers leads to accumulation of grossly modified amylopectin. Biochem. J., 338, 515-521
  • Regierer, B., Springer, F., Kossmann, J. (1999) Manipulation of phosphate metabolism in transgenic plants. In: Phosphorous in plant biology: Regulatory roles in molecular, cellular, organismic and ecosystem processes (Lynch, J.P., Deikman, J. eds.) Curent topics in plant physiology: An American Society of Plant Physiology Series, Vol. 19, pp. 385-387.
  • Kossmann, J., Lloyd, J., Riesmeier, J., Willmitzer, L. (1999)  Engineering carbohydrate metabolism in transgenic plants. In: Current Plant Science and Biotechnology in Agriculture. Vol. 36.Plant Biotechnology and in Vitro Biology in the 21st Century (Altmann, A., Izhar, S., Ziv, M. eds.), Kluwer Academic Publishers, Dordrecht, Nl, pp. 579-582.
  • Kossmann, J., Lloyd, J., Landschütze, V., Riesmeier, J., Willmitzer, L. (1998) Understanding and bioengineering starch biosynthesis. In: Biochemical principles and mechanisms of biosynthesis and biodegradation of polymers (Steinbüchel, A. ed.), Wiley-VCH, Weinheim, pp. 143-151
  • Riesmeier, J., Koßmann, J., Trethewey, R., Heyer, A., Landschütze, V., Willmitzer, L. (1998) Production of novel polymers in transgenic plants. Polymer Degradation and Stability, 59, 383-386.
  • Pachepsky, L.B., Muschak, M., Acock, B., Kossmann, J., Blechschmidt-Schneider, S., Willmitzer, L., Fisahn J. (1998) Calculating leaf boundary layer parameters with the two-dimensional model 2DLEAF comparing transpiration rates of normal (cv. Desiree) and transgenic (sucrose transport antisense) potato plants. Biotronics, 27, 41-52.
  • Romanov, G.A., Konstantinova, T.N., Sergeeva, L.I., Golyanovskaya, S.A., Kossmann, J., Willmitzer, L., Schmülling, T.,  Aksenova, N.P. (1998) Morphology and tuber formation of in vitro grown potato plants harboring the yeast invertase gene and/or the rolC gene. Plant Cell Rep., 18, 318-324.
  • Sweetlove, L.J., Kossmann, J., Riesmeier, J.W., Trethewey, R.N. and Hill, S.A. (1998) The control of source to sink carbon flux during tuber development in potato. Plant J., 15, 697-706
  • Bhullar, S.S., Willmitzer, L., Kossmann, J. (1998) cDNA sequence of the b-amylase from cowpea (Vigna unguiculata). Plant Mol. Biol., 37, 1089
  • Lorberth, R., Ritte, G., Willmitzer, L., Kossmann, J. (1998) Inhibition of a novel starch-granule bound protein leads to drastically modified starch and repression of cold sweetening. Nature Biotech., 16,  473-477
  • Renz, A., Schikora, S., Schmid, R., Kossmann, J., Beck, E. (1998) cDNA sequence and heterologous expression of monomeric spinach pullulanase: Multiple molecular forms arise from the same polypeptide. Biochem. J., 331, 937-945
  • Albrecht, T., Greve, B., Pusch, K., Kossmann, J., Buchner, P., Wobus, U., Steup, M. (1998) Homodimers and heterodimers of Pho1-type phosphorylase isoforms in Solanum tuberosum L. as revealed by sequence-specific antibodies. Eur. J. Biochem., 251, 343-252.
  • Buléon, A., Gallant, D.J., Bouchet, B., Mouille, G., D'Hulst, C., Kossmann, J., Ball, S. (1997) Starches from A to C: Chlamydomonas reinhardtii as a model microbial system to investigate the biosynthesis of the plant amylopectin crystal. Plant Physiol., 115, 949 - 957.
  • Muschak, M., Hoffmann-Benning, S., Fuss, H., Koßmann, J., Willmitzer, L., Fisahn, J. (1997) Gas exchange and ultrastructural analysis of transgenic potato plants expressing mRNA antisense construct targeted to the cp-fructose-1,6-bisphosphate phosphatase. Photosynthetica, 33, 455-465.
  • Duwenig, E., Steup, M., Willmitzer, L., Kossmann, J. (1997) Antisense inhibition of cytosolic phosphorylase in potato (Solanum tuberosum L.) affects tuber sprouting and flower formation with only little impact on carbohydrate metabolism. Plant J., 12, 323-333
  • Duwenig, E., Steup, M., Kossmann, J. (1997) Induction of genes encoding plastidic phosphorylase from spinach (Spinacia oleracea L.) and potato (Solanum tuberosum L.) by exogenously supplied carbohydrates in excised leaf discs. Planta, 203, 111-120
  • Sonnewald U., Hajirezaei MR., Kossmann J., Heyer A., Trethewey RN., Willmitzer L. (1997) Increased potato tuber size resulting from apoplastic expression of a yeast invertase. Nature Biotechnology. 15, 794-797
  • Buettcher, V., Welsh, T., Willmitzer, L., Kossmann, J. (1997) Cloning and characterization of the gene for amylosucrase from Neisseria polysaccharea: Production of a linear alpha-1,4-glucan. J. Bacteriol., 179, 3324-3330
  • Willmitzer, L., Heyer, A., Koßmann, J. (1997) Erzeugung neuer oder modifizierter Kohlenhydrate in transgenen Pflanzen. In: 5.Symposium Nachwachsende Rohstoffe-Perspektiven für die Chemie. Schriftenreihe des Bundesministeriums für Ernährung, Landwirtschaft und Forsten. Reihe A: Angewandte Wissenschaften. Köllen Druck und Verlag, pp. 103-110
  • Koßmann, J., Emmermann, M., Lorberth, R., Springer, F., Willmitzer, L., Büttcher, V.,  Abel, G.J.W., Duwenig, E., Welsh, T. (1997) Gentechnik in der Stärkeforschung. Getreide Mehl und Brot, 51, 259-262.
  • Koßmann, J., Büttcher, V.,  Abel, G.J.W., Duwenig, E., Emmermann, M., Frohberg, C., Lloyd, J.R., Lorberth, R., Springer, F., Welsh, T., Willmitzer, L. (1997) Starch biosynthesis and modification of starch structure in transgenic plants. Macromol. Symp. 120, 29-38
  • Riesmeier, J., Rink, U., Laloi, M., Leggewie, G., Kwart, M., Trethewey, R., Kossmann, J., Willmitzer, L. (1996) The physiological role and regulation of photoassimilate and nutrient transport across biomembranes with special emphasis on transgenic potato plants. In: Regulation and Manipulation of Starch and Sucrose Metabolism in Plants (Nakamura, Y. ed.) National Institute of Agrobiological Resources, Tsukuba, Japan, pp.71-74
  • Koßmann, J., Müller-Röber, B., Riesmeier, J.W., Willmitzer, L. (1996) Potential to modify source-sink interactions through the genetic manipulation of carbohydrate metabolism. In: Distribution of photoassimilates in plants and crops: Source-sink relationships (Zamski, E., Schaffer, A. eds.) Marcel Dekker Inc., New York, USA, pp. 369-388
  • Riesmeier, J.W., Koßmann, J., Müller-Röber, B., Willmitzer, L. (1996) Transgenic plants with special emphasis on photosynthetic carbon metabolism. In: Frontiers of Molecular Biology 14: Molecular Genetics of Photosynthesis (Andersson, B., Salter, A.H., Barber, J. eds.) IRL Press, Oxford, pp. 160-174
  • Abel, G.J.W., Springer, F., Willmitzer, L., Kossmann, J. (1996) Cloning and Functional Analysis of a cDNA encoding a Novel Starch Synthase from Potato (Solanum tuberosum L.) Plant J., 10, 981-991
  • Flipse, E., Suurs, L., Keetels, C. J. A. M., Kossmann, J., Jacobsen, E., Visser, R. G. F. (1996) Introduction of Sense and Antisense cDNA for Branching Enzyme in the Amylose-free Potato Mutant leads to chemico-physical Changes in the Starch. Planta, 198, 340-347
  • Renz, A., Schmid, R., Kossmann, J., Beck, E. (1995) Sequence of a cDNA of the Spinacia oleracea L. Starch Debranching Enzyme. Plant Physiol., 108, 1342
  • Bilger, W., Fisahn, J., Brummet, W., Koßmann, J., Willmitzer, L. (1995) Violaxanthin cycle pigment contents in potato and tobacco plants with genetically reduced photosynthetic capacity. Plant Physiol., 108, 1479-1486
  • Fisahn, J., Koßmann, J., Matzke, G., Fuß, H., Willmitzer, L. (1995) Chlorophyll fluorescence quenching and violaxanthin deepoxidation of FBPase antisense plants at low light intensities and low temperatures. Physiol. Plant. 95, 1-10
  • Koßmann, J., Müller-Röber, B., Riesmeier, J., Sonnewald, U., Willmitzer, L. (1995) The influence of Source-Sink Relations on Tuber Development in Potato. Med. Fac. Landbouww. Univ. Gent, 60/4a, 1653-1658
  • Koßmann, J., Müller-Röber, B., Riesmeier, J., Frommer, W.-B., Sonnewald, U., Willmitzer, L. (1995) Transgenic plants as a tool to analyze carbohydrate metabolism. In: Current topics of Plant Physiology, Vol.14 (Pontis, H.G., Salerno, G.L., Echeverria, E.J.) American society of Plant Physiologists, Rockville, Maryland, pp. 100-106
  • Koßmann, J., Abel, G., Büttcher, V., Duwenig, E., Emmermann, M., Lorberth, R., Springer, F., Virgin, I., Welsh, T., Willmitzer, L. (1995) Transgenic plants as a tool to understand starch biosynthesis. In: Carbohydrate Bioengineering (Petersen, S. B., Svensson, B., Pedersen, S.) Elsevier Science B.V., Amsterdam, Nl., pp. 271-278
  • Willmitzer, L., Frommer, W.B., Koßmann, J., Müller-Röber, B., Riesmeier, J., Sonnewald, U., Flügge, U.-I., Heldt, H.W. (1994)) Transgenic potatoes changed in carbohydrate partitioning and allocation. In: Molecular and Cellular Biology of the Potato (Belknap, W. ed.) CAB International, Oxford, pp 57-66
  • Koßmann, J., Sonnewald, U., Willmitzer, L. (1994) Reduction of the chloroplastic fructose-1,6-bisphosphatase in transgenic potato plants impairs photosynthesis and plant growth. Plant J. 6, 637-650
  • Müller-Röber, B., Koßmann, J. (1994) Approaches to influence starch quantity and starch quality in transgenic plants. Plant Cell Environ. 17, 601-613
  • Willmitzer, L., Koßmann, J., Müller-Röber, B., Sonnewald, U. (1993) Starch synthesis in transgenic plants. In: Plant Polymeric Carbohydrates (Meuser, F., Manners, D. J., Seibel, W. eds.) RSC, Cambridge, Großbritannien, pp. 33-42
  • Willmitzer, L., Koßmann, J., Müller-Röber, B., von Schaewen, A., Sonnewald, U. (1993) Approaches to influence partitioning and metabolism of carbohydrates in transgenic plants. In: Control of Plant Gene Expression (D. P. S. Verma ed.) CRC Press, Boca Raton, USA, pp. 471-480
  • Sonnewald, U., Kossmann, J., Willmitzer, L. (1992) Molecular approaches to influence carbohydrate metabolism in transgenic plants. In: Research in photosynthesis Vol. III (Murata N. ed.) Kluwer Academic Publishers, Dordrecht, Nl, pp. 683-689
  • Koßmann, J., Müller-Röber, B., Sonnewald, U., Willmitzer, L. (1992) Approaches to influence the partitioning and metabolism of carbohydrates in transgenic plants. In: Plant Tissue Culture and Gene Manipulation for Breeding and Formation of Phytochemicals (Oono, K., Hirabyashi, T., Kikuchi, S., Handa, H., Kajiwara, K. eds.) NIAR, Tsukuba, Japan, pp. 45-54
  • Koßmann, J., Müller-Röber, B., Dyer, T. A., Raines, C. A., Sonnewald, U., Willmitzer, L. (1992) Cloning and expression analysis of the plastidic fructose-1,6-bisphosphatase coding sequence from potato: circumstantial evidence for the import of hexoses into chloroplasts. Planta 188, 7-12
  • Koßmann, J., Visser, R. G. F., Müller-Röber, B., Willmitzer, l., Sonnewald, U. (1991) Cloning and expression analysis of the potato gene encoding branching enzyme: Evidence for co-expression of starch biosynthetic genes. Mol. Gen. Genet. 230, 39-44.
  • Müller-Röber, B., Kossmann, J., Hannah, L.C., Sonnewald, U., Willmitzer, L. (1991) ADP-glucose pyrophosphorylase genes from potato: mode of RNA expression and its relation to starch synthesis. In: Recent Advances in Phloem Transport and Assimilate Compartmentation (Bonnemain, J.L., Delrot, S., Lucas, W. J., Dainty, J. eds.) Ouest Editions, Presses Academiques, Nantes, Frankreich, pp. 204-208
  • Bonas, U., Knoop, V., Koßmann, J., Stall, R. E., Staskawicz, B. J. (1990) Genetic and molecular characterization of the avirulence gene avrBs3 from Xanthomonas campestris cv. vesicatoria. In: Plant Pathogenic Bacteria. Ed.: Z. Klement; Budapest, Ungarn. pp 369-374
  • Prat, S., Frommer, W. B., Höfgen, R., Keil, M., Koßmann, J., Köster-Töpfer, M., Liu, X.-Y., Müller, B., Pena-Cortes, H., Rocha-Sosa, M., Sanchez-Serrano, J., Sonnewald, U., Willmitzer, L. (1990) Gene expression during tuber development in potato plants. FEBS Lett. 268, 334-338.
  • Müller, B., Koßmann, J., Hannah, C., Willmitzer, L., Sonnewald, U. (1990) Only one of two different ADP-glucose pyrophosphorylase genes from potato responds to elevated levels of sucrose. Mol. Gen. Genet. 224, 136-146
  • Kossmann, J., Klintworth, R., Bowien, B. (1989) Sequence analysis of the chromosomal and plasmid genes encoding phosphoribulokinase from Alcaligenes eutrophus. Gene 85, 247-252