Characterization, localization, and seasonal changes of the sucrose transporter FeSUT1 in the phloem of Fraxinus excelsior

@inproceedings{nerSieben2015CharacterizationLA,
  title={Characterization, localization, and seasonal changes of the sucrose transporter FeSUT1 in the phloem of Fraxinus excelsior
},
  author={Soner {\"O}ner-Sieben and Christine Rappl and Norbert Sauer and Ruth Stadler and Gertrud Lohaus},
  booktitle={Journal of experimental botany},
  year={2015}
}
Trees are generally assumed to be symplastic phloem loaders. A typical feature for most wooden species is an open minor vein structure with symplastic connections between mesophyll cells and phloem cells, which allow sucrose to move cell-to-cell through the plasmodesmata into the phloem. Fraxinus excelsior (Oleaceae) also translocates raffinose family oligosaccharides in addition to sucrose. Sucrose concentration was recently shown to be higher in the phloem sap than in the mesophyll cells… CONTINUE READING
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