Euglena gracilis Transcriptome

Euglenophytes originated from a secondary endosymbiosis between a phagotrophic euglenid and a green alga, resulting in plastids with a complex evolutionary history. This project focuses on the structural characterization of photosystem I from the euglenophyte Euglena gracilis using cryo electron microscopy. By resolving the PSI LhcE LhcbM supercomplex, the study investigates the organization of lineage specific light harvesting complexes and their roles in adaptation to changing light conditions. The generated data provide a structural framework for understanding plastid evolution and photosynthetic diversity within the green lineage.裸藻植物（Euglenophytes）起源于吞噬营养裸藻与绿藻之间的二次内共生事件，其质体由此具备了复杂的演化历程。本项目聚焦于采用冷冻电子显微镜（Cryo Electron Microscopy）技术，解析裸藻植物纤细裸藻（Euglena gracilis）的光系统I（photosystem I, PSI）结构特征。通过解析PSI-LhcE-LhcbM超复合物，本研究旨在探究该谱系特异性捕光复合物的组织形式，及其在适应动态光环境过程中的作用。本研究产生的数据为理解绿色谱系内的质体演化与光合多样性提供了结构研究框架。