Volume 89 Issue 51 | p. 8 | News of The Week
Issue Date: December 19, 2011

Closing The Loop

Microbiology: Cyanobacteria do have a complete tricarboxylic acid cycle
Department: Science & Technology
News Channels: Biological SCENE
Keywords: metabolism, cyanobacteria, biotechnology

Cyanobacteria have a complete tricarboxylic acid (TCA) cycle after all, Donald A. Bryant and Shuyi Zhang of Pennsylvania State University report (Science, DOI: 10.1126/science.1210858). Their finding corrects a decades-old misconception and could lead to improved models for engineering microbes for biotechnology applications.

The TCA cycle—also known as the citric acid cycle or the Krebs cycle—is one of the central pathways in cellular metabolism. It . . .

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