# Prof. Dr. Ulrich Hammes

**Source**: https://www.professoren.tum.de/en/ausserplanmaessige-professoren/alphabetisch/h/hammes-ulrich
**Parent**: https://www.professoren.tum.de/en/adjunct-professors/alphabetical

### Professorship

[Plant Cell Physiology - Plant Systems Biology](https://www.mls.ls.tum.de/en/plasysbio/home/)

### School

[TUM School of Life Sciences](https://www.ls.tum.de/en/ls/home/)

### Contact Details

[Business card at TUMonline](https://campus.tum.de/tumonline/visitenkarte.show_vcard?pPersonenId=B3D33C539C66CEB7&pPersonenGruppe=3)

### Academic Career and Research Areas

Prof. Hammes' research focus is the area of plant membrane transport. The main interests are the transport of hormones, particularly auxin, as well as the transport of metabolites such as amino acids and sugars.

Prof. Hammes studied biology at the Eberhard Karls University of Tübingen. After receiving his diploma in 1999, he also received his doctorate in 2002 from the Eberhard Karls University of Tübingen. After post-doctoral stays as a DFG scholarship holder at the Donald Danforth Plant Science Center in St. Louis, MO (USA) and at FAU Erlangen, Prof. Hammes completed his habilitation at the University of Regensburg. Prof. Hammes has been at TUM since 2017. Prof. Hammes has been an adjunct professor at TUM since 2024.

- [Curriculum Vitae](https://www.mls.ls.tum.de/en/plasysbio/working-group-pd-dr-ulrich-hammes/curriculum-vitae-pd-dr-ulrich-hammes/)
- [Courses](https://www.mls.ls.tum.de/plasysbio/lehre/)

### Awards

- FG Auslandsstipendium (2003)

### Key Publications ([all publications](https://www.mls.ls.tum.de/en/plasysbio/working-group-pd-dr-ulrich-hammes/publications-pd-dr-ulrich-hammes/))

Janacek, D.P., Kolb, M., Schulz, L., Mergner, J., Kuster, B., Glanc, M., Friml, J., ten Tusscher, K., Schwechheimer, C., and Hammes, U.Z. (2024). Transport properties of canonical PIN-FORMED proteins from Arabidopsis and the role of the loop domain in auxin transport. Developmental Cell.

[Abstract](https://www.sciencedirect.com/science/article/pii/S1534580724005690?via%3Dihub)

Ung, K.L., Winkler, M., Schulz, L., Kolb, M., Janacek, D.P., Dedic, E., Stokes, D.L., Hammes, U.Z., and Pedersen, B.P. (2022). Structures and mechanism of the plant PIN-FORMED auxin transporter. Nature 609, 605-610.

[Abstract](https://www.nature.com/articles/s41586-022-04883-y)

Abas, L., Kolb, M., Stadlmann, J., Janacek, D.P., Lukic, K., Schwechheimer, C., Sazanov, L.A., Mach, L., Friml, J., and Hammes, U.Z. (2021). Naphthylphthalamic acid associates with and inhibits PIN auxin transporters. Proceedings of the National Academy of Sciences of the USA 118, e2020857118.

[Abstract](https://www.pnas.org/doi/full/10.1073/pnas.2020857118)

Marhava, P., Bassukas, A.E.L., Zourelidou, M., Kolb, M., Moret, B., Fastner, A., Schulze, W.X., Cattaneo, P., Hammes, U.Z., Schwechheimer, C., and Hardtke, C.S. (2018). A molecular rheostat adjusts auxin flux to promote root protophloem differentiation. Nature 558, 297-300.

[Abstract](https://www.nature.com/articles/s41586-018-0186-z)

Müller, B., Fastner, A., Karmann, J., Mansch, V., Hoffmann, T., Schwab, W., Suter-Grotemeyer, M., Rentsch, D., Truernit, E., Ladwig, F., Bleckmann, A., Dresselhaus, T., and Hammes, U.Z. (2015). Amino acid export in developing Arabidopsis seeds depends on UmamiT facilitators. Current Biology 25, 3126-3131.

[Abstract](https://www.cell.com/current-biology/fulltext/S0960-9822(15)01300-7?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982215013007%3Fshowall%3Dtrue)

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