Jens Kossmann

Heterologous expression of a ketohexokinase in potato plants leads to inhibited rates of photosynthesis, severe growth retardation and abnormal leaf development (2004)

Geigenberger,Peter, Regierer,Babette, Lytovchenko,Anna, Leisse,Andrea, Schauer,Nicolas, Springer,Franziska, ...

In the present paper we investigated the effect of heterologous expression of a rat liver ketohexokinase in potato (Solanum tuberosum L.) plants with the aim of investigating the role of fructose...

Identification of an Arabidopsis inorganic pyrophosphatase capable of being imported into chloroplasts (2004)

Schulze, Silke, Mant, Alexandra, Kossmann, Jens, Lloyd, James R.

An Arabidopsis cDNA coding for a previously uncharacterized isoform of inorganic pyrophosphatase was isolated. It was used to complement an E. coli mutant, demonstrating that it coded for an active...

Heterologous expression of a ketohexokinase in potato plants leads to inhibited rates of photosynthesis, severe growth retardation and abnormal leaf development (2004)

Geigenberger, Peter, Regierer, Babette, Lytovchenko, Anna, Leisse, Andrea, Schauer, Nicolas, Springer, Franziska, ...

In the present paper we investigated the effect of heterologous expression of a rat liver ketohexokinase in potato (Solanum tuberosum L.) plants with the aim of investigating the role of fructose...

Starch content and yield increase as a result of altering adenylate pools in transgenic plants (2002)

Regierer,Babette, Fernie,Alisdair R., Springer,Franziska, Perez-Melis,Alicia, Leisse,Andrea, Koehl,Karin, ...

Starch represents the most important carbohydrate used for food and feed purposes. With the aim of increasing starch content, we decided to modulate the adenylate pool by changing the activity of the...

Starch content and yield increase as a result of altering adenylate pools in transgenic plants (2002)

Regierer, Babette, Fernie, Alisdair R., Springer, Franziska, Perez-Melis, Alicia, Leisse, Andrea, Koehl, Karin, ...

Starch represents the most important carbohydrate used for food and feed purposes. With the aim of increasing starch content, we decided to modulate the adenylate pool by changing the activity of the...

Elucidating the biosynthesis of 2-carboxyarabinitol 1-phosphate through reduced expression of chloroplastic fructose 1,6-bisphosphate phosphatase and radiotracer studies with 14CO2

Andralojc, P. John, Keys, Alfred J., Kossmann, Jens, Parry, Martin A. J.

2-Carboxyarabinitol 1-phosphate limits photosynthetic CO2 assimilation at low light because it is a potent, naturally occurring inhibitor of ribulose 1,5-bisphosphate carboxylase/oxygenase. Evidence...

The starch-related R1 protein is an α-glucan, water dikinase

Ritte, Gerhard, Lloyd, James R., Eckermann, Nora, Rottmann, Antje, Kossmann, Jens, Steup, Martin

To determine the enzymatic function of the starch-related R1 protein it was heterologously expressed in Escherichia coli and purified to apparent homogeneity. Incubation of the purified protein with...

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

Yu, Tien-Shin, Kofler, Heike, Häusler, Rainer E., Hille, Diana, Flügge, Ulf-Ingo, Zeeman, Samuel C., ...

Starch is the major storage carbohydrate in higher plants and of considerable importance for the human diet and for numerous technical applications. In addition, starch can be accumulated transiently...

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 Temperature1

Lloyd, James R., Blennow, Andreas, Burhenne, Kim, Kossmann, Jens

A potato (Solanum tuberosum) cDNA encoding an isoform of disproportionating enzyme (stDPE2) was identified in a functional screen in Escherichia coli. The stDPE2 protein was demonstrated to be...

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 PerformanceW⃞

Geigenberger, Peter, Regierer, Babette, Nunes-Nesi, Adriano, Leisse, Andrea, Urbanczyk-Wochniak, Ewa, Springer, Franziska, ...

Pyrimidine nucleotides are of general importance for many aspects of cell function, but their role in the regulation of biosynthetic processes is still unclear. In this study, we investigate the...

Elucidating the biosynthesis of 2-carboxyarabinitol 1-phosphate through reduced expression of chloroplastic fructose 1,6-bisphosphate phosphatase and radiotracer studies with 14CO2

Andralojc, P. John, Keys, Alfred J., Kossmann, Jens, Parry, Martin A. J.

2-Carboxyarabinitol 1-phosphate limits photosynthetic CO2 assimilation at low light because it is a potent, naturally occurring inhibitor of ribulose 1,5-bisphosphate carboxylase/oxygenase. Evidence...

The starch-related R1 protein is an α-glucan, water dikinase

Ritte, Gerhard, Lloyd, James R., Eckermann, Nora, Rottmann, Antje, Kossmann, Jens, Steup, Martin

To determine the enzymatic function of the starch-related R1 protein it was heterologously expressed in Escherichia coli and purified to apparent homogeneity. Incubation of the purified protein with...

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

Yu, Tien-Shin, Kofler, Heike, Häusler, Rainer E., Hille, Diana, Flügge, Ulf-Ingo, Zeeman, Samuel C., ...

Starch is the major storage carbohydrate in higher plants and of considerable importance for the human diet and for numerous technical applications. In addition, starch can be accumulated transiently...

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 Temperature1

Lloyd, James R., Blennow, Andreas, Burhenne, Kim, Kossmann, Jens

A potato (Solanum tuberosum) cDNA encoding an isoform of disproportionating enzyme (stDPE2) was identified in a functional screen in Escherichia coli. The stDPE2 protein was demonstrated to be...

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 PerformanceW⃞

Geigenberger, Peter, Regierer, Babette, Nunes-Nesi, Adriano, Leisse, Andrea, Urbanczyk-Wochniak, Ewa, Springer, Franziska, ...

Pyrimidine nucleotides are of general importance for many aspects of cell function, but their role in the regulation of biosynthetic processes is still unclear. In this study, we investigate the...