Widening of xylem conduits in a conifer tree depends on the longer time of cell expansion downwards along the stem

@inproceedings{Anfodillo2012WideningOX,
  title={Widening of xylem conduits in a conifer tree depends on the longer time of cell expansion downwards along the stem},
  author={Tommaso Anfodillo and Annie Deslauriers and Roberto Menardi and Laura Tedoldi and Giai Petit and Sergio Rossi},
  booktitle={Journal of experimental botany},
  year={2012}
}
The diameter of vascular conduits increases towards the stem base. It has been suggested that this profile is an efficient anatomical feature for reducing the hydraulic resistance when trees grow taller. However, the mechanism that controls the cell diameter along the plant is not fully understood. The timing of cell differentiation along the stem was investigated. Cambial activity and cell differentiation were investigated in a Picea abies tree (11.5 m in height) collecting microsamples at… CONTINUE READING

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