Prof. Dr. Ute Armbruster

Research focus

Our research seeks to uncover the regulatory principles of plant photosynthesis under natural light conditions. More specifically, we are interested in understanding how the light and dark reactions of photosynthesis synchronize their activities in response to light fluctuations or other environmental perturbations. Thereby, we employ cross-dimensional approaches, resolving regulatory responses of entire organisms down to single molecules on various time scales. For this purpose, we combine whole plant spectroscopy with genetically encoded biosensors and molecular techniques.

The five most important publications

  1. von Bismarck T, Korkmaz K, Ruß J, Skurk K, Kaiser E, Correa Galvis V, Cruz JA, Strand DD, Köhl K, Eirich J, Finkemeier I, Jahns P, Kramer DM, Armbruster U. (2023) Light acclimation interacts with thylakoid ion transport to govern the dynamics of photosynthesis in Arabidopsis. New Phytologist 237(1):160-176. doi: 10.1111/nph.18534.
  2. Uflewski M, Mielke S, Correa Galvis V, von Bismarck T, Chen X, Tietz E, Ruß J, Luzarowski M, Sokolowska E, Skirycz A, Eirich J, Finkemeier I, Schöttler MA, Armbruster U. (2021) Functional characterization of proton antiport regulation in the thylakoid membrane. Plant Physiology 187(4):2209-2229. doi: 10.1093/plphys/kiab135.
  3. Correa Galvis V, Strand DD, Messer M, Thiele W, Bethmann S, Hübner D, Uflewski M, Kaiser E, Siemiatkowska B, Morris BA, Tóth SZ, Watanabe M, Brückner F, Höfgen R, Jahns P, Schöttler MA, Armbruster U. (2020) H+ Transport by K+ EXCHANGE ANTIPORTER3 Promotes Photosynthesis and Growth in Chloroplast ATP Synthase Mutants. Plant Physiol. 182(4):2126-2142. doi: 10.1104/pp.19.01561.
  4. Armbruster U, Correa Galvis V, Kunz HH, Strand DD (2017) The regulation of the chloroplast proton motive force plays a key role for photosynthesis in fluctuating light. Curr Opin Plant Biol. 37:56-62. doi: 10.1016/j.pbi.2017.03.012.
  5. Armbruster U, Carrillo LR, Venema K, Pavlovic L, Schmidtmann E, Kornfeld A, Jahns P, Berry JA, Kramer DM, Jonikas MC (2014) Ion antiport accelerates photosynthetic acclimation in fluctuating light environments. Nat Commun. 13;5:5439. doi: 10.1038/ncomms6439

 

 

 

 

Prof. Dr. Ute Armbruster

+49 02118115791

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Institute of Molecular Photosynthesis
Heinrich Heine University Düsseldorf

https://www.molphot.hhu.de