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B1: Plasticity of root-hair density and patterning in Arabidopsis thaliana to resources

Dr. Jacqueline Nowak

Institut für Biochemie und Biologie, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm

Tel. +49-331-5678279, jacqueline.nowakuni-potsdamde


Dr. Michael Sauer

Institute for Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm

Tel. +49-331-9772652,



Our research aims to unravel the fascinating adaptability of root and root-hair traits in Arabidopsis thaliana concerning various nutrient levels, particularly nitrogen, and other essential resources. Root hairs play a pivotal role in nutrient absorption and exhibit remarkable adaptability in response to diverse nutrients. This exciting project dives into exploring the impact of a newly discovered inhibitor affecting root-hair formation on their adaptability to different nutrient resources. Additionally, we're delving into studying the natural variations of this inhibitor. To empower comprehensive screenings for factors influencing adaptability in root-hair and other cellular traits, our endeavor involves pioneering high-throughput phenotyping methods. Leveraging digital microscopy and automated image analysis, we aim to establish cutting-edge techniques for unbiased and rapid analysis, propelling our understanding of plant adaptability to new heights.


Project-related publications

Sauer, M., Delgadillo, M.O., Zouhar, J., Reynolds, G.D., Pennington, J.G., Jiang, L., Liljegren, S.J., Stierhof, Y.-D., De Jaeger, G., Otegui, M.S., Bednarek, S.Y., and Rojo, E. (2013). MTV1 and MTV4 Encode Plant-Specific ENTH and ARF GAP Proteins That Mediate Clathrin-Dependent Trafficking of Vacuolar Cargo from the Trans-Golgi Network. The Plant Cell 25: 2217–2235.

Zouhar, J. and Sauer, M. (2014). Helping Hands for Budding Prospects: ENTH/ANTH/VHS Accessory Proteins in Endocytosis, Vacuolar Transport, and Secretion.The Plant Cell26: 4232–4244.

Delgadillo, M.O., Ruano, G., Zouhar, J., Sauer, M., Shen, J., Lazarova, A., Sanmartin, M., Lai, L.T.F., Deng, C., Wang, P., Hussey, P.J., Sanchez-Serrano, J.J., Jiang, L., Rojo, E. (2020). MTV proteins unveil ER- and microtubule-associated compartments in the plant vacuolar trafficking pathway. Proc Natl Acad Sci USA 117: 9884–9895.

Heinze, L., Freimuth, N., Rößling, A.-K., Hahnke, R., Riebschläger, S., Fröhlich, A., Sampathkumar, A., McFarlane, H.E., and Sauer, M. (2020). EPSIN1 and MTV1 define functionally overlapping but molecularly distinct trans -Golgi network subdomains in Arabidopsis. Proc Natl Acad Sci USA 117: 25880–25889.