Article
A cytosolic glucosyltransferase is required for conversion of starch to sucrose in Arabidopsis leaves at night.
The Plant journal : for cell and molecular biology - 1 Mar 2004
Chia Tansy, Thorneycroft David, Chapple Andrew, Messerli Gaëlle, Chen Jychian, Zeeman Samuel C, Smith Steven M, Smith Alison M
Abstract excerpt
Maltose is exported from the Arabidopsis chloroplast as the main product of starch degradation at night. To investigate its fate in the cytosol, we characterised plants with mutations in a gene encoding a putative glucanotransferase (disproportionating enzyme; DPE2), a protein similar to the maltase Q (MalQ) gene product involved in maltose metabolism in bacteria. Use of a DPE2 antiserum revealed that the DPE2...
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