Endosperm pp 73-89 | Cite as

Transfer Cells

  • J. Royo
  • E. Gómez
  • G. HuerosEmail author
Part of the Plant Cell Monographs book series (CELLMONO, volume 8)


Transfer cells are a specialized cell type that can be found in many exchange surfaces in plants, including branching points, hydathodes, or phloem loading and unloading areas. The developing seeds are strong sinks with no symplastic connection with the mother plant, as they are distinct individuals. Consequently, during the grain filling phase seed storage organs must develop specialized structures to facilitate nutrient uptake from the apoplastic space. The differentiation of an endosperm transfer cell layer is thus expected, and found, in seeds in which the endosperm acts as storage organ, namely monocot and particularly cereal seeds. We will review here the current knowledge on the cytological and molecular aspects of the differentiation and function of the cereal endosperm transfer cells. The increasing evidence suggesting an additional role in defense for the endosperm transfer cells will also be discussed.


Transfer Cell Aleurone Cell Maize Endosperm Cell Wall Invertase Endosperm Transfer Cell 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  1. 1.Dpto. Biología Celular y GenéticaUniversidad de AlcaláAlcalá de Henares, MadridSpain

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