Evidence for intracellular spatial separation of hexokinases and fructokinases in tomato plants

@article{DamariWeissler2006EvidenceFI,
  title={Evidence for intracellular spatial separation of hexokinases and fructokinases in tomato plants},
  author={Hila Damari-Weissler and Michal Kandel-Kfir and David Gidoni and Anahit Mett and Eddy Belausov and David Granot},
  journal={Planta},
  year={2006},
  volume={224},
  pages={1495-1502}
}
Four hexokinase (LeHXK1–4) and four fructokinase (LeFRK1–4) genes were identified in tomato plants. Previous GFP fusion studies indicate that the gene product of LeHXK3 is associated with the mitochondria while that of LeHXK4 is located within plastids. In this study we found that the enzyme encoded by the fructokinase gene LeFRK3 is also located within plastids. The presence of LeFrk3 enzyme in plastids raises the question of the origin of fructose in these organelles. The other three FRKs… CONTINUE READING