Abstract
Rhodopseudomonas viridis and Rhodopseudomonas sulfoviridis are two related species of the Rhodospirillaceae family. Among their similarities, they both divide by budding, contain bacteriochorophyll b and their intracytoplasmic membrane system is lamellar. The main difference resides in the fact that R. sulfoviridis can use sulfite as electron donor, whereas R. viridis do not grow under these conditions (1). Recently, M.T. Madigan has isolated a species of R. sulfoviridis, denoted G1 which grows preferentially at 42°C. In the present article, we will compare functional and structural properties of reaction centers isolated from R. viridis and the mesophilic (DSM 729) and thermophilic (G1) species of R. sulfoviridis. In particular, the arrangement of the four hemes has been studied by linear dichroism spectroscopy.
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Vermeglio, A., Garcia, D., Breton, J. (1990). Cytochrome Arrangement in Reaction Centers of Different Species of Photosynthetic Bacteria. In: Michel-Beyerle, ME. (eds) Reaction Centers of Photosynthetic Bacteria. Springer Series in Biophysics, vol 6. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-61297-8_3
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DOI: https://doi.org/10.1007/978-3-642-61297-8_3
Publisher Name: Springer, Berlin, Heidelberg
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