Soil-inhabiting microbes can induce changes in root cells, that forms protective layers from drought, floods and pests. We study which set of microbes is required for best-protected roots and how can we strengthen their interactions with crops. This knowledge will help developing “root probiotics” making crops resilient to harsh environments.

Cereal crops, like maize, provide most of the world’s food. However, their production is at risk from climate change, especially droughts. Our project studies how certain cells in maize roots use physical barriers to help the plant survive tough soil conditions linked with drought, such as soil compaction and presence of parasitic plants. We use advanced methods study these barriers and their genes, and test how these affect plant growth in drought. By understanding this, we can breed stronger crops that handle drought better, helping ensure food security.

• dr. K. (Kaisa) Kajala
• M. (Mariana) Vega Blanes MSc

• prof. Hannah Schneider - IPK Gatersleben Germany
• dr. Victoria Mironova - Radboud University
• prof. Jian Xu - Radboud University

The extreme pace and impact of climate change highlight a demand for crops withstanding multiple environmental stresses. A promising trait offering multi-stress protection is production of suberin by certain root cells. Suberin is a hydrophobic compound, which can shield plants from losing water during drought or oxygen under flooding, and ward off entry of harmful compounds or pathogens. Boosting suberized barriers by genetic approaches is challenging, but recently identified Suberin-Inducing Microbes (SIMs) offer novel solutions. This project will establish to what extent SIMs can shield crops from stressful environments and open avenues for agricultural applications for crop protection.

• ing. T.A.H. (Teun) te Braake