Research project Plants produce oxygen to the atmosphere. Oxygen is important for most living organisms.
Photosystem II (PSII) uses the sunlight to split water, an energetically unfavorable reaction where electrons and protons are extracted from water and oxygen is released as a by-product. Understanding this process is crucial for the future development of clean, renewable and unlimited energy sources. We have been focusing on the role of two lumenal proteins, PsbO and Cah3, in the water oxidation process. Data is presented supporting the hypothesis that bicarbonate acts as a proton acceptor in the water splitting process in PSII and that the lumenal carbonic anhydrase, Cah3, supplies bicarbonate required for this function. On the other hand, the PsbO protein, an important constituent of the water-oxidizing complex, however, has an unknown function.
Finansår , 2005, 2006, 2007, 2008
huvudman: Göran Samuelsson, finansiär: Vetenskapsrådet, y2005: 500, y2006: 500, y2007: 500, y2008: 500,
huvudman: Göran Samuelsson/institutionen gemensamt, finansiär: STINT, y2005: , y2006: 600, y2007: , y2008: ,