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Science 10 July 1970:
Vol. 169. no. 3941, pp. 186 - 188
DOI: 10.1126/science.169.3941.186
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Articles

Carbon Dioxide-Fixation in Photosynthetic Green Sulfur Bacteria

Reidun Sirevåg 1 and J. G. Ormerod 1

1 Botanical Laboratory, University of Oslo, Blindern, Oslo 3, Norway

The main products of carbon dioxide-fixation in washed suspensions of Chlorobium thiosulfatophilum are a polyglucose, agr-ketoglutarate, and agr-keto-beta-methylvalerate. All of these can be formed by a mechanism involving the reductive carboxylic acid cycle. The reductive pentose phosphate cycle appears to play a quantitatively minor role in carbon dioxide-fixation under these conditions.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)