Joachim Kopka

Pre-chlorotic Mg2+ deficiency impairs guard-cell PSII and leaf gas exchange in Vicia faba

This study shows that magnesium deficiency impairs guard-cell photosystem II and leaf gas exchange before visible chlorosis in Vicia faba.

Positional 13C Enrichment Analysis of Aspartate by GC-MS to Determine PEPC Activity In Vivo

This paper develops a GC-MS-based method to measure PEPC activity in vivo by analyzing positional 13C enrichment in aspartate from Synechocystis cultures.

Unveiling potato cultivars with microbiome interactive traits for sustainable agricultural production

This study identifies potato cultivars with microbiome interactive traits to enhance sustainable agriculture by improving plant growth and stress resistance through soil microbiome interactions.

PRC2 facilitates the transition from heterotrophy to photoautotrophy during seedling emergence

This study identifies two phases of PRC2-mediated gene repression during seedling emergence, linking PRC2 activity to metabolic and developmental transitions from heterotrophy to photoautotrophy.

In vivo RUBISCO activity in Synechocystis is regulated by RuBP availability

This study shows that RUBISCO activity in Synechocystis is regulated by RuBP availability, with CP12 inactivating the CBB cycle during darkness and affecting RuBP levels.

Insights into CPSFL1 Induced Membrane Dynamics: A Multifaceted Regulator Linking Vesicle Formation to Thylakoid Biogenesis

This study identifies CPSFL1 as a key regulator of vesicle formation and thylakoid biogenesis in plants, showing its role in membrane dynamics and metabolite transport.

Dynamic photosynthetic labelling and carbon-positional mass spectrometry monitor in vivo carbon assimilation rates by ribulose-1,5-bisphosphate carboxylase.

This paper develops a method to distinguish RUBISCO activity from CBB cycle activities by analyzing carbon positional labeling in 3PGA using GC-MS after 13CO2 labeling.