Plant primary metabolism - From basic research to crop productivity
The domestication of crops was a landmark in the development of human civilisation. Today, most of our food and many of our resources are derived from plants. One of the most fundamental compounds is starch. Starch is the predominant storage carbohydrate in plants and the major constituent of our staple crops (e.g. rice, maize, wheat, potato etc). Despite its importance, our understanding of how plants make and degrade this essential resource is far from complete. Our research team focuses on the metabolic pathways leading to and from starch, and the way in which they are regulated.
We use the model plant Arabidopsis thaliana as our experimental system. This allows us to exploit the complete genome sequence and the array of post-genomic facilities to make rapid progress. Our current understanding suggests that different plants make starch is essentially the same way, as the components of the pathway appears to be highly conserved, even in distantly related species. Consequently, the knowledge gained through studying Arabidopsis will be transferable to starch-producing crops and enable their future improvement. This is an essential goal as the world population approaches its predicted peak of over 9 billion.
- Carbohydrate metabolism
- Starch biosynthesis and degradation
The PRK/Rubisco shunt strongly influences Arabidopsis seed metabolism and oil accumulation, affecting more than carbon recycling
Deslandes-Herold, G; Zanella, M; (...); Zeeman, SC
Plant Cell, 10.1093/plcell/koac338 2023
Plant growth: An active or passive role for starch reserves?
Zeeman, SC and Solhaug, EM
Current Biology, 32 (16) , pp.R894-R896, 10.1016/j.cub.2022.07.024 2022
Effective root responses to salinity stress include maintained cell expansion and carbon allocation
Hongfei Li; Kilian Duijts; Carlo Pasini; Joyce E. van Santen; Jasper Lamers; Thijs de Zeeuw; Francel Verstappen; Nan Wang; Samuel C. Zeeman; Diana Santelia et al.
New Phytologist, 2023-03-29, DOI: 10.1111/nph.18873
- ACA pumps maintain leaf excitability during herbivore onslaught
Fotouhi, Nikou; Fischer-Stettler, Michaela; Lenzoni, Gioia; Stolz, Stephanie; Glauser, Gaetan; et al.
Current Biology 10.1016/j.cub.2022.03.059 JUN 6 2022
- Coalescence and directed anisotropic growth of starch granule initials in subdomains of Arabidopsis thaliana chloroplasts
Burgy, Leo; Eicke, Simona; Kopp, Christophe; Jenny, Camilla; Lu, Kuan Jen; Escrig, Stephane; Meibom, Anders; Zeeman, Samuel C
Nature Communications 10.1038/s41467-021-27151-5 NOV 26 2021
- Ectopic maltase alleviates dwarf phenotype and improves plant frost tolerance of maltose transporter mutants
Cvetkovic, Jelena; Haferkamp, Ilka; Rode, Regina; Keller, Isabel; Pommerrenig, Benjamin; et al.
Plant Physiology 10.1093/plphys/kiab082 MAY 2021
- Distinct plastid fructose bisphosphate aldolases function in photosynthetic and non-photosynthetic metabolism in Arabidopsis
Carrera, Daniel Arpad; George, Gavin M.; Fischer-Stettler, Michaela; Galbier, Florian; Eicke, Simona; et al.
Journal Of Experimental Botany 10.1093/jxb/erab099 MAY 4 2021
- Morphological bases of phytoplankton energy management and physiological responses unveiled by 3D subcellular imaging
Uwizeye, Clarisse; Decelle, Johan; Jouneau, Pierre-Henri; Flori, Serena; Gallet, Benoit; et al.
Nature Communications 10.1038/s41467-021-21314-0 Published: FEB 16 2021
- A multifaceted analysis reveals two distinct phases of chloroplast biogenesis during de-etiolation in Arabidopsis
Pipitone, Rosa; Eicke, Simona; Pfister, Barbara; Glauser, Gaetan; Falconet, Denis; Uwizeye, Clarisse; Pralon, Thibaut; Zeeman, Samuel C; Kessler, Felix; Demarsy, Emilie
Elife e62709, 10.7554/eLife.62709, FEB 25 2021
- Starch: A Flexible, Adaptable Carbon Store Coupled to Plant Growth
Smith, Alison M.; Zeeman, Samuel C.
Annual Review Of Plant Biology, Vol 71, 2020 DOI: 10.1146/annurev-arplant-050718-100241 2020
Prof. Dr. Samuel C. Zeeman
Institute of Molecular Plant Biology
Tel: +41 (0)44 632 82 75
- Plant biochemistry and physiology
- Molecular genetics
- Genomics, proteomics, metabolomics