This work unravels key aspects of the regulation of potassium nutrition in plants and demonstrate that it is not calcium but pH that harbors the information to activate the plant response to nutrient deficiency. These biophysical insights offer breeders valuable tools to minimize reliance on fertilizers and to enhance plant resilience to salt and drought stresses. This achievement illustrates the power of the combination structural biology, biochemistry and plant physiology.
Link to article in Science Advance: https://www.science.org/doi/10.1126/sciadv.adp7658