One of the mysteries of the English language finally explained.
The flow of water through a plant, from the roots to the leaves, via the xylem vessels.
- ‘Xylem flow carries the transpiration stream and is normally entirely acropetal.’
- ‘Mass flow of solution towards the root in the transpiration stream tends to compress the zones of oxygenation and nitrification and extend the zone of depletion.’
- ‘The transpiration stream through the xylem transports cytokinins, as well as ABA, from the root to the shoot.’
- ‘This scenario implies that water will be taken up by the xylem parenchyma whenever the water potential in the transpiration stream is high.’
- ‘Na+ is transported to shoots in the rapidly moving transpiration stream in the xylem, but can only be returned to roots via the phloem.’
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