Abstract
The 'Regulation of Photosynthesis' session was one of the largest events of the Congress, with 17 talks and 9 poster presentations. It covered many topics on the cutting edge of modern photosynthesis research: from the electron transport within the cytochrome b (6) f-complex to the novel role of carbonic anhydrase in the regulation of pH within the thylakoid lumen, the expanding role of retrograde signaling in all aspects of plant life including the regulation of cell-to-cell traffic via plasmodesmata, and the development of new non-invasive techniques to measure photosynthetic response. Here, a short survey of the presented reports is given.