Architecture and mechanism of the light-harvesting apparatus of purple bacteria.
نویسندگان
چکیده
Photosynthetic organisms fuel their metabolism with light energy and have developed for this purpose an efficient apparatus for harvesting sunlight. The atomic structure of the apparatus, as it evolved in purple bacteria, has been constructed through a combination of x-ray crystallography, electron microscopy, and modeling. The detailed structure and overall architecture reveals a hierarchical aggregate of pigments that utilizes, as shown through femtosecond spectroscopy and quantum physics, elegant and efficient mechanisms for primary light absorption and transfer of electronic excitation toward the photosynthetic reaction center.
منابع مشابه
From Simplicity to Complexity and Back* Function, Architecture, and Mechanism of Light-harvesting Systems in Photosynthetic Bacteria
Photosynthetic organisms fuel their metabolism with light energy and have developed for this purpose an efficient apparatus for harvesting sunlight, key features of which were conceptually established long ago. Recently, the atomic structure of a main protein constituent of the apparatus, as it evolved in purple bacteria, has been solved through a combination of modeling, X-ray crystallography,...
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ورودعنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 95 11 شماره
صفحات -
تاریخ انتشار 1998