Light-to-electricity nanodevice reveals how Earth's oldest surviving cyanobacteria worked

科学家成功破译了一种源自35亿年前蓝藻谱系的光系统I原子结构，为早期产氧光合作用提供了独特视角。这种从巴拿马角苔杆菌中提纯的古老纳米器件，尽管历经数十亿年进化，其光吸收结构仍保持着惊人保守的三叶草构型。研究结果表明，地球生命史上早在复杂光合机制进化之前，捕获阳光的基础设计架构便已确立。

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Journal Reference:

Han-Wei Jiang, Christopher J. Gisriel, Tanai Cardona, David A. Flesher, Gary W. Brudvig, Ming-Yang Ho.Structure and evolution of photosystem I in the early-branching cyanobacterium Anthocerotibacter panamensis.Proceedings of the National Academy of Sciences, 2025; 122 (20) DOI:10.1073/pnas.2427090122