Photosystem I (PSI, or plastocyanin–ferredoxin oxidoreductase) is one of two photosystems in the photosynthetic light reactions of algae, plants, and cyanobacteria. Photosystem I [1] is an integral membrane protein complex that uses light energy to catalyze the transfer of electrons across the thylakoid membrane from plastocyanin to ferredoxin.

2025年1月18日 · 光系统 I （ PSI，或 质体蓝素 - 铁氧还蛋白氧化还原酶 ）是 藻类 、 植物 和一些 细菌 的光合作用光反应中的第二个 光系统。 光系统 I [1] 是一种 完整的膜蛋白 复合物，它使用 光 能，以产生高能量载体 ATP 和 NADPH。 [2] PSI包含超过110个 辅助因子，远远超过 光系统II。 [3] 这个光系统被称为PSI，因为它是在 光系统II 之前发现的。 PSI在20世纪50年代发现，但当时这些发现的意义尚不清楚。

2007年5月1日 · Photosystem I (PSI) is a multisubunit protein complex located in the thylakoid membranes of green plants and algae, where it initiates one of the first steps of solar energy conversion by light-driven electron transport.

Photosystem I (PSI) is one of two large pigment-protein complexes responsible for converting solar energy into chemical energy in all oxygenic photosynthetic organisms. The PSI supercomplex consists of the PSI core complex and peripheral light-harvesting complex I (LHCI) in eukaryotic photosynthetic …

2024年3月19日 · Photosystem I (PSI) is one of two large pigment–protein complexes responsible for converting solar energy into chemical energy. This study reveals the previously unknown major PSI assembly ...

2011年8月15日 · Photosystem I (PSI) catalyses the final step of photosynthetic electron transport, the oxidation of plastocyanin in the thylakoid lumen and the reduction of ferredoxin in the chloroplast stroma. Both photosystems are interconnected by the cytochrome-b 6 f complex via two diffusible redox carriers: plastoquinone and plastocyanin.

2001年10月30日 · Photosystem I is a large multi-subunit protein complex, embedded into the photosynthetic thylakoid membrane. It catalyses the light induced electron transfer from plastocyanin or cytochrome c6 on the lumenal side of the membrane (inside the thylakoids) to ferredoxin or flavodoxin on the stromal side of the membrane.

Photosystem I is a large membrane protein complex involved in the process of oxygenic photosynthesis catalyzing the light-induced transmembrane electron transfer from plastocyanin or cytochrome c6 to ferredoxin or flavodoxin.

2024年11月4日 · Photosystem I is a multi-subunit protein complex embedded within the thylakoid membrane of chloroplasts, and the second protein complex involved in the light-dependent...

2011年8月15日 · Photosystem I (PSI), the plastocyanin-ferredoxin oxidoreductase of the photosynthetic electron transport chain, is one of the largest bioenergetic complexes known. It is composed of subunits encoded in both the chloroplast genome and the nuclear genome and thus, its assembly requires an intricate co …