Principal Investigators

Jun Prof. Dr. Sjon Hartman

Jun Prof. Dr. Sjon Hartman


Jun Prof. Dr. Sjon Hartman

Plant Environmental Signalling and Development (Faculty of Biology)
University of Freiburg


Further Information

Flood severity and frequency are increasing strongly as a consequence of climate change. Floods have a devastating impact on crop productivity and understanding how a variety of plant species sense flooding and acclimate accordingly is essential for flood-resilient crop breeding. In our lab/CIBSS project we study the spatiotemporal dynamics of flooding signals and how they mediate plant stress responses and development. Moreover, we are interested in how prior flooding events and the associated signals control plant development and stress responses during subsequent flooding stress, a process we call flooding memory.



Plant Development, Abiotic Stress, Epigenetic Stress Memory, Plant Flooding, Ethylene; Hypoxia

10 selected publications:

  • The leaf sheath promotes prolonged flooding protection by giving rise to specialized adventitious roots.
    7. Maric, A., Hartman, S. (2023).
    New Phytologist, 238: 1337-1339.
  • Ethylene controls translational gatekeeping to overcome flooding stress in plants.
    Maric A, Hartman S (2022).
    EMBO J. 2022 41(19):e112282.
  • Ethylene inhibits rice root elongation in compacted soil via ABA- and auxin-mediated mechanisms.
    Huang G, Kilic A, Karady M, Zhang J, Mehra P, Song X, Sturrock CJ, Zhu W, Qin H, Hartman S, Schneider HM, Bhosale R, Dodd IC, Sharp RE, Huang R, Mooney SJ, Liang W, Bennett MJ, Zhang D, Pandey BK (2022).
    Proc Natl Acad Sci U S A. 119(30):e2201072119.
  • Ethylene augments root hypoxia tolerance via growth cessation and reactive oxygen species amelioration.
    Liu Z, Hartman S, van Veen H, Zhang H, Leeggangers HACF, Martopawiro S, Bosman F, de Deugd F, Su P, Hummel M, Rankenberg T, Hassall KL, Bailey-Serres J, Theodoulou FL, Voesenek LACJ, Sasidharan R (2022).
    Plant Physiol. 190(2):1365-1383.
  • Plant roots sense soil compaction through restricted ethylene diffusion.
    Pandey BK, Huang G, Bhosale R, Hartman S, Sturrock CJ, Jose L, Martin OC, Karady M, Voesenek LACJ, Ljung K, Lynch JP, Brown KM, Whalley WR, Mooney SJ, Zhang D, Bennett MJ (2021).
    Science. 371(6526):276-280.
  • The role of ethylene in metabolic acclimations to low oxygen.
    Hartman S, Sasidharan R, Voesenek LACJ (2021).
    New Phytol.229(1):64-70
  • Plant roots sense soil compaction through restricted ethylene diffusion
    2. Pandey, BK., Huang, G., Bhosale, R., Hartman, S., Sturrock, GJ., Jose, L., Martin, OC., Karady, M., Voesenek, LACJ., Ljung, K., Lynch, JP., Brown, KM., Whalley, WR., Mooney, SJ., Zhang, D., Bennett, MJ. (2021).
    Science, 371 (6526), 276-280
  • Ethylene Differentially Modulates Hypoxia Responses and Tolerance across Solanum Species
    10. Hartman, S., van Dongen, N., Rennenberg, D., Welschen-Evertman, RAM., Kociemba, J., Sasidharan, R., Voesenek, LACJ. (2020).
    Plants, 9 (8), 1022.
  • Ethylene-mediated nitric oxide depletion pre-adapts plants to hypoxia stress.
    Hartman S, Liu Z, van Veen H, Vicente J, Reinen E, Martopawiro S, Zhang H, van Dongen N, Bosman F, Bassel GW, Visser EJW, Bailey-Serres J, Theodoulou FL, Hebelstrup KH, Gibbs DJ, Holdsworth MJ, Sasidharan R, Voesenek LACJ (2019).
    Nat Commun. 10(1):4020.
  • Oxygen-dependent proteolysis regulates the stability of angiosperm polycomb repressive complex 2 subunit VERNALIZATION 2.
    Gibbs DJ, Tedds HM, Labandera AM, Bailey M, White MD, Hartman S, Sprigg C, Mogg SL, Osborne R, Dambire C, Boeckx T, Paling Z, Voesenek LACJ, Flashman E, Holdsworth MJ (2018).
    Nat Commun. 9(1):5438.