1887

Abstract

SUMMARY: The presence of an incomplete tricarboxylic acid cycle in and is described. These blue-green algae lack both α-oxoglutarate dehydrogenase and succinyl-CoA synthetase. Succinyl-CoA was formed in extracts of by 3-ketoacyl CoA-transferase using acetoacetyl-CoA as CoA donor. The activities of the other tricarboxylic cycle enzymes were measured in extracts prepared from autotrophic organisms and from those grown in the presence of acetate. No alterations in activity indicative of enzyme repression or de-repression were observed. These results are discussed in relation to possible reasons for autotrophic behaviour.

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/content/journal/micro/10.1099/00221287-55-3-371
1969-03-01
2019-10-24
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http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-55-3-371
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