About us

Plants accommodate and continuously interact with a species-rich microbiota including a multitude of bacteria, fungi or oomycetes. These microbes collectively function as a microbiome and, similar to the microbial communities in human or animal guts, they impact nutrition and health of their host. For instance, plant microbiota members can improve nutrient acquisition or provide pathogen protection. In our research we address the following fundamental questions of plant microbiome biology:

- How do plants communicate with the root microbiota and take influence on their activities?

- What is the functional contribution of the root microbiota to plant growth and disease protection?

Ultimately, our research mission is that beneficial plant microbiome interactions can be implemented in smart and sustainable agriculture. We mainly work with Arabidopsis thaliana and Zea mays as models and we combine field and laboratory experiments with methods in microbiomics, molecular biology, microbiology, plant genetics and bioinformatics.

 

 

 

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Address

University of Basel
Department of Environmental Sciences
Plant Microbe Interactions
Bernoullistrasse 32
CH-4056 Basel

 

News

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A toast to Nina’s MSc degree – Congratulations!

18.08.2026
Nina Dubach established in her MSc work a gnotobiotic system to study maize-microbe interactions. With this she studyed colonisation and growth effects of Sphingobium, an abundant maize root bacterium with the particular interest of the bacterium’s ability to metabolise the antimicrobial benzoxazinoids that maize exudes from its roots. Nina found that the bacterium did not benefit from this ability to colonize the roots and that maize growth was not affected by Sphingobium colonisation in the early growth stage tested.
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MSc degree – Congratulations, Cora!

13.08.2026
Cora Kuettel quantifyed the contribution of soil arbuscular mycorrhizal fungi to maize growth in 18 different fields. She compared growth of a mutant line that is resistant to fungal colonisation to growth of wild-type plants. Depending on the field soil, mycorrhizal fungi were responsible for +1% to +91% and an average of 56% of maize biomass! Fungal growth contribution to maize growth was strongest in soils with low phosphate levels. The results highlight the importance of beneficial soil fungi for agricultural production, particularly in low fertility conditions.

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Congratulations Lewis for your MSc degree!

11.08.2026
Lewis Di Gallo studied plant genetic and soil factors of context dependency in plant microbiome interactions. F1 lines of a cross of two Arabidopsis thaliana accessions with contrasting microbiome feedbacks revealed enhanced growth reminiscent of hybrid vigor and displayed positive growth feedback. Furthermore, he found weak responses to inoculations of diverse soils with mycorrhiza under greenhouse conditions. Finally, Lewis began to establish a collection of maize root fungi. We celebrated the successful defence on the rooftop terrasse of the Bernoullianum. Thank you Lewis and congratulations on this achievement!
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