Intercellular communication inAzolla roots: I. Ultrastructure of plasmodesmata

  title={Intercellular communication inAzolla roots: I. Ultrastructure of plasmodesmata},
  author={Robyn L. Overall and Joe Wolfe and Brian E. S. Gunning},
SummaryA model is proposed for the structure of the plasmodesmata ofAzolla root primordia, based on micrographs obtained by a combination of fixation in glutaraldehyde/p-formaldehyde/tannic acid/ferric chloride, digestion of cell walls and the use of stereo pairs. Unlike the model for plasmodesmatal structure proposed byRobards (1971), the desmotubule is depicted as a virtually closed cylindrical bilayer providing little or no open pathway for transport. In this respect it is similar to the… 
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