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Article: A Heteromeric Plastidic Pyruvate Kinase Complex Involved in Seed Oil Biosynthesis in Arabidopsis(W)
- Article from:
- Plant Cell
- Article date:
- June 1, 2007
- Author:
CopyrightCopyright American Society of Plant Physiologists Jun 2007. Provided by ProQuest LLC. (Hide copyright information)
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Glycolysis is a ubiquitous pathway thought to be essential for the production of oil in developing seeds of Arabidopsis thaliana and oil crops. Compartmentation of primary metabolism in developing embryos poses a significant challenge for testing this hypothesis and for the engineering of seed bi
omass production. It also raises the question whether there is a preferred route of carbon from imported photosynthate to seed oil in the embryo. Plastidic pyruvate kinase catalyzes a highly regulated, ATP-producing reaction of glycolysis. The Arabidopsis genome encodes 14 putative isoforms of pyruvate kinases. Three genes encode subunits α, β^sub 1^, and β^sub 2^ of plastidic ...