Light is a source of energy in nature, but also a signaling factor. I investigate, using the methods of biophysics and molecular biology, how proteins process light — how light is converted into a biological signal and, on the other hand, how light drives the primary reactions of photosynthesis. The subjects of my research are bacterial light sensors, in particular red-light sensors known as phytochromes. In addition, we have mapped the light-related functions of plant-associated bacteria. We are especially interested in aerobic anoxygenic bacterial photosynthesis operating inside plants — a process that does not produce oxygen. Bacterial photosynthesis derives its energy from light in the near-infrared range. These findings can be used to engineer new signaling systems for biotechnological applications, or to understand the role of the plant microbiome in plant function and adaptation.
Light is ubiquitous in nature. It is a source of energy but also an important signaling factor. I clarify how proteins function with light. I investigate how light is transformed to biological signaling or energy in the primary reactions of photosynthesis. The research objects are bacterial photosensors, in particular red light absorbing photosensor, bacteriophytochromes.
Further, we have characterised aerobic anoxygenic photosynthesis processes which take place in plant-associated bacteria. These bacteria live inside plants and their role for plant well-being is to determined in the future.
With this information new type of signaling systems in the field of biotechnology could be designed. Also the role of plan-associated bacteria for plant adaptation is clarified.
