Transmission Electron Microscopic Study on Supramolecular Nanostructures of Bacteriochlorophyll Self-Aggregates in Chlorosomes of Green Photosynthetic Bacteria(MICROBIAL PHYSIOLOGY AND BIOTECHNOLOGY)
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概要
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Supramolecular nanostructures of bacteriochlorophyll (BChl) self-aggregates in major light-harvesting complexes (chlorosomes) of green photosynthetic bacteria were successfully observed by freeze-fracture transmission electron microscope. Rod-shaped nanostructures with approximately 10 nm in diameter could be visualized in three types of green sulfur bacteria (Chlorobium). Diameter of the rod-shaped nanostructures in Chlorobium chlorosomes was independent of the molecular structures of their light-harvesting pigments, namely BChl-c or d. In contrast, chloro-somes of the green filamentous bacterium Chloroflexus aurantiacus had rod-shaped nanostructures with approximately 5 nm in diameter. The present results support that BChl self-aggregates in chlorosomes form rod-shaped nanostructures called rod-elements with approximately 10- and 5-nm diameters for Chlorobium and Chloroflexus, respectively.
- 社団法人日本生物工学会の論文
- 2006-08-25
著者
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民秋 均
立命館大学理工
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Saga Yoshitaka
Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan Universi
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Tamiaki Hitoshi
Department of Bioscience and Biotechnology, Faculty of Science and Engineering, Ritsumeikan Universi
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Saga Yoshitaka
Department Of Bioscience And Biotechnology Faculty Of Science And Engineering Ritsumeikan University
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Saga Yoshitaka
Department Of Bioscience And Biotechnology Faculty Of Science And Engineering Ritsumeikan University
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Tamiaki Hitoshi
Department Of Bioscience And Biotechnology Faculty Of Science And Engineering Ritsumeikan University
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