Molecular mechanism of reducing equivalent transfer system on the thylakoid membrane.

高等植物叶绿体的氧化还原状态在光暗条件下有很大的差异。许多蛋白质，包括与光合作用相关的酶，都是根据其氧化还原状态而被激活的。然而，其机制仍有待充分阐明。在这个项目中，我们专注于硫氧还蛋白，它作为叶绿体基质中蛋白质的调节剂。获得了硫氧还蛋白积累缺陷的拟南芥突变体，并对其进行了分析，结果表明硫氧还蛋白在光合作用和光保护中起重要作用。

The redox state of higher plant chloroplast varies greatly under light and dark conditions. Many proteins, including enzymes related to photosynthesis, are activated depending on its redox state. However, its mechanism remains to be fully elucidated. In this project, we focused on thioredoxins, which act as regulator of proteins in chloroplast stroma. Arabidopsis mutants defective in accumulation of thioredoxins were obtained and analyzed, which revealed that thioredoxins are important for photosynthesis and photoprotection.