Rapid shoot-to-root signalling regulates root hydraulic conductance via aquaporins.

  title={Rapid shoot-to-root signalling regulates root hydraulic conductance via aquaporins.},
  author={Rebecca K Vandeleur and Wendy Sullivan and Asmini Athman and Charlotte Jordans and Matthew Gilliham and Brent N Kaiser and Stephen D Tyerman},
  journal={Plant, cell & environment},
  volume={37 2},
We investigated how root hydraulic conductance (normalized to root dry weight, Lo ) is regulated by the shoot. Shoot topping (about 30% reduction in leaf area) reduced Lo of grapevine (Vitis vinifera L.), soybean (Glycine max L.) and maize (Zea mays L.) by 50 to 60%. More detailed investigations with soybean and grapevine showed that the reduction in Lo was not correlated with the reduction in leaf area, and shading or cutting single leaves had a similar effect. Percentage reduction in Lo was… CONTINUE READING
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