Starch Synthase 4 and Plastidal Phosphorylase Differentially Affect Starch Granule Number and Morphology.

  title={Starch Synthase 4 and Plastidal Phosphorylase Differentially Affect Starch Granule Number and Morphology.},
  author={Irina Malinova and Saleh Alseekh and Regina Feil and Alisdair R. Fernie and Otto Baumann and Mark Aurel Sch{\"o}ttler and John E. Lunn and Joerg Fettke},
  journal={Plant physiology},
  volume={174 1},
The process of starch granule formation in leaves of Arabidopsis (Arabidopsis thaliana) is obscure. Besides STARCH SYNTHASE4 (SS4), the PLASTIDIAL PHOSPHORYLASE (PHS1) also seems to be involved, since dpe2-1/phs1a double mutants lacking both PHS1 and the cytosolic DISPROPORTIONATING ENZYME2 (DPE2) displayed only one starch granule per chloroplast under normal growth conditions. For further studies, a dpe2-1/phs1a/ss4 triple mutant and various combinations of double mutants were generated and… CONTINUE READING
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