Offer 27 out of 39 from 29/04/24, 12:52


Freie Uni­ver­si­tät Ber­lin - Fachbereich Biologie, Chemie, Pharmazie - Institut für Biologie

“What makes a good neighbour in the phyllosphere?” Understanding the ecological rules that govern bacterial colonization on leaves.
Leaves are colonized by a manifold of bacteria that impact on their host plant and its health. Given that plants are the most important terrestrial primary producers, it is surprising how little we know about their leaf colonizers. Bacterial communities on a given plant host species are very recurrent. How this community recurrence translates to spatial patterning of bacteria on leaves at the micrometre resolution, however, is not well understood. The latter is however important to truly appreciate bacteria-bacterial interactions.

Reasearch assistant (Praedoc) (m/f/d)

with 50%-part-time job
limited for up to 4 years
salary grade (Entgeltgruppe) 13 TV-L FU
reference code: WIMI_AG_ Remus-Emsermann_2024_

Working field:

We seek a PhD candidate to investigate bacteria-bacteria interactions on leaves to understand how bacterial leaf communities are spatially structured. We make use of representative bacterial leaf colonizers that are expressing fluorescent proteins, e.g., cyan, green, yellow, and/or red fluorescent proteins. The applicant will investigate the distribution of individual bacterial strains and synthetic communities on leaves of the model plant Arabidopsis thaliana using fluorescence microscopy. The outcomes of this research will be important to understand bacterial ecology at the micrometre resolution and how bacterial coexistence can be explained in natural environments. Furthermore, this research will lay the foundation for biological plant pathogens control.
Participation in research and teaching are expected. The position serves scientific qualification (PhD or Dr. rer. nat.).


Completed university degree (MSc. or equivalent) in Microbiology, Plant biology or related subjects.

Very good English language skills; Experienced in one or several techniques and subjects: Fluorescence microscopy, Image cytometry, Microbiology, Plant biology and/or Microbial ecology; Aptitude for bioinformatics and image analysis; Capability to independently solve scientific problems.

How to apply:

To apply, send your CV, addresses of 2 to 3 referees, transcripts and a motivation letter outlining your fit for this position to Clive S. Johnston (

For questions regarding the application process, please contact Clive S. Johnston. For inquiries regarding the research, please contact Prof. Mitja Remus-Emsermann (

For position-related inquiries please contact Prof. Mitja Remus-Emsermann (m.remus- +49 30 838 58031)
BC-WIMI_AG_ Remus-Emsermann_2024__E

Applications should be sent by e-mail, together with significant documents, indicating the
reference code, in PDF format (preferably as one document) no later than May 20th, 2024 to Mr. Prof. Dr. Mitja Remus-Emsermann: or postal to

Freie Universität Berlin
Fachbereich Biologie, Chemie, Pharmazie
Institut für Biologie
Mr. Prof. Dr. Mitja Remus-Emsermann
Königin-Luise-Str. 12-16
14195 Berlin (Dahlem)

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Freie Universität Berlin is an equal opportunity employer.