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Julia Schulz

Julia Schulz

PhD Candidate
Department of Biology
Faculty of Natural Sciences

julia.schulz@ntnu.no
Realfagbygget, DU2-147, Gløshaugen, Høgskoleringen 5
Hamann Lab Multiscale Biology
About Publications Media

About

 

I am a chemical biologist by education now working at the intersection of biology and physics in the Functional Plant Biology group led by Thorsten Hamann. 

The Hamann group is studying cell wall integrity (CWI) maintenance in plants exemplified by the model organism Arabidopsis thaliana. Plant CWI maintenance describes a network of proteins and singaling events with origin at/in the continuum of the plant cell wall and the adjacent plasma membrane to monitor the state of the cell wall at all times. The cell wall is the entity surrounding each single cell and it is stiff enough to contain the turgor pressure build up by the vacuole inside the cell. It is also the first physical barrier towards the environment and especially vulnerable to environmental challenges. The CWI maintenance mechanism ensures the functional integrity of each cell and the whole plant organism upon cell wall damage or cell wall stress by sensing external stimuli, relaying these stress related signals and initiating adaptive responses. Relevant, naturally or man-made occurring stressors can e.g. be pathogen attack, temperature changes, soil pH, drought or herbicides. In the lab, we use the chemical isoxaben that inhibits the biosynthesis of cellulose, the main component of cell walls. Typical adaptive responses are the release of plant hormones, gene up- or down regulation or the structural re-composition of the cell wall to compensate for the weakened cell wall. 

This research field has been constantly growing for more than a decade and more and more details of this complex network of mechanisms are brought to light. While many studies so far focused on molecular studies, the aspect of mechanical stimuli playing a role in the initiation of responses is relatively new.  

This is what my project is focusing on. I am investigating changes in plant cell turgor pressure occuring as a response to different types of cell wall damage/stress in the model organism Arabidopsis thaliana. An important part of my work is the development of a genetically encoded fluorescent tool together with other reporters that will allow to visualize the change of turgor pressure and other responses with improved temporal and spatial resolution. The knowledge created will contribute to our general understanding of the plant CWI maintenance mechanism.

 

Teaching

As a PhD student I am also involved in teaching and lab course supervision in the following courses:

BI2012 - Cell biology 

BI2015 - Molecular bioligy 

BI1007 - Plant structure and function

 

Other activities:

2019 - today:         Board member(treasurer) Norwegian Biochemical Society (NBS), Div Trondheim 

09/2020       :         Forsker Grand Prix 2020 - local selection Trondheim - PopSci Talk, Byscenen Trd

07/2019 -07/2020: PhD representant in the PhD program board at the NTNU Biology department

 

Background

05/2017    M.Sc. Chemical Biology; Technische Universitaet Dortmund, DE

08/2015 - 12/2015     Study abroad/ERASMUS+; Universitetet i Bergen, NO

08/2014    B.Sc. Chemical Biology; Technische Universitaet Dortmund, DE

 

Competencies

  • Arabidopsis
  • Cell wall
  • Confocal microscopy
  • FRET
  • Fluorescence
  • Molecular biology
  • Plant science
  • Science communication

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2022

  • Bacete, Laura; Schulz, Julia; Engelsdorf, Timo; Bartosova, Zdenka; Vaahtera, Lauri; Yan, Guqi; Gerhold, Joachim Matthias; Ticha, Tereza; Øvstebø, Camilla; Gigli, Nora; Starheim, Svanhild Johannessen; Margueritat, Jeremie; Kollist, Hannes; Dehoux, Thomas; McAdam, Scott A.M.; Hamann, Thorsten. (2022) THESEUS1 modulates cell wall stiffness and abscisic acid production in Arabidopsis thaliana. Proceedings of the National Academy of Sciences of the United States of America. volum 119 (1).
    Academic article

2019

  • Vaahtera, Lauri; Schulz, Julia; Hamann, Thorsten. (2019) Cell wall integrity maintenance during plant development and interaction with the environment. Nature Plants. volum 5 (9).
    Scientific translation/review

Scientific articles

  • Bacete, Laura; Schulz, Julia; Engelsdorf, Timo; Bartosova, Zdenka; Vaahtera, Lauri; Yan, Guqi; Gerhold, Joachim Matthias; Ticha, Tereza; Øvstebø, Camilla; Gigli, Nora; Starheim, Svanhild Johannessen; Margueritat, Jeremie; Kollist, Hannes; Dehoux, Thomas; McAdam, Scott A.M.; Hamann, Thorsten. (2022) THESEUS1 modulates cell wall stiffness and abscisic acid production in Arabidopsis thaliana. Proceedings of the National Academy of Sciences of the United States of America. volum 119 (1).
    Academic article

Journal publications

  • Vaahtera, Lauri; Schulz, Julia; Hamann, Thorsten. (2019) Cell wall integrity maintenance during plant development and interaction with the environment. Nature Plants. volum 5 (9).
    Scientific translation/review

Media

2020

  • Programme management
    Mortensholm, Stein; Skogstad, Håkon Magnar; Bråten, Vilde; Buvik, Vanja; Fredriksen, Caroline; Hjellnes, Veronica Hammer; Sørengaard, Torhild Anita; Hadler-Jacobsen, Jacob; Danmo, Frida Hemstad; Schulz, Julia. (2020) Forsker Grand Prix Trondheim 2020. NRK [TV]. 2020-09-24.
  • Popular scientific lecture
    Schulz, Julia. (2020) Stressede Planter. Forsker Grand Prix 2020 - lokallag NTNU Trondheim ; 2020-09-24.
  • Interview
    Schulz, Julia; Schou, Ingrid. (2020) Først stresser Julia plantene. Så ser hun hva som skjer - Plantene prøver å forsvare seg når de blir utsatt for angrep. nettavis: UNG.Forskning.no [Internett]. 2020-10-04.
  • Poster
    Schulz, Julia; Stokke, Bjørn Torger; Hamann, Thorsten. (2020) Turgor sensititvity and mechano perception in Arabidopsis thaliana cell wall integrity maintenance. 11th SPPS PhD Conference . Scandinavian Plant Physiology Society (SPPS); 2020-09-02 - 2020-09-04.

2019

  • Poster
    Schulz, Julia; Hamann, Thorsten. (2019) A biomechanical perspective on cell wall integrity (CWI) maintenance in Arabidopsis thaliana. EMBO EMBL Symposium - Mechanical Forces in Development ; EMBL Heidelberg. 2019-07-03.
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