Glucan, water dikinase activity stimulates breakdown of starch granules by plastidial beta-amylases.

@article{Edner2007GlucanWD,
  title={Glucan, water dikinase activity stimulates breakdown of starch granules by plastidial beta-amylases.},
  author={Christoph Edner and Jing Li and Tanja Albrecht and Sebastian Mahlow and Mahdi Hejazi and Hasnain Hussain and Fatma Kaplan and Charles L. Guy and Steven M Smith and Martin Steup and Gerhard Ritte},
  journal={Plant physiology},
  year={2007},
  volume={145 1},
  pages={17-28}
}
Glucan phosphorylating enzymes are required for normal mobilization of starch in leaves of Arabidopsis (Arabidopsis thaliana) and potato (Solanum tuberosum), but mechanisms underlying this dependency are unknown. Using two different activity assays, we aimed to identify starch degrading enzymes from Arabidopsis, whose activity is affected by glucan phosphorylation. Breakdown of granular starch by a protein fraction purified from leaf extracts increased approximately 2-fold if the granules were… CONTINUE READING