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The Widened Pipe Model of plant hydraulic evolution
(Natl Acad Sciences, 2021-06-01)
Shaping global water and carbon cycles, plants lift water from roots to leaves through xylem conduits. The importance of xylem water conduction makes it crucial to understand how natural selection deploys conduit diameters ...
First insights into the functional role of vasicentric tracheids and parenchyma in eucalyptus species with solitary vessels: Do they contribute to xylem efficiency or safety?
(Oxford University Press, 2016-07)
The relationship between hydraulic specific conductivity (ks) and vulnerability to cavitation (VC) with size and number of vessels has been studied in many angiosperms. However, few of the studies link other cell types ...
High temperature during the budswell phase of grapevines increases shoot water transport capacity
(Elsevier Science, 2020-12)
Knowledge about heat acclimation in perennial plants is limited. Our hypotheses were (i) that high temperature during budswell before budbreak elicits acclimation in grapevines that is mediated by greater water transport ...
The stem xylem of Patagonian shrubs operates far from the point of catastrophic dysfunction and is additionally protected from drought- induced embolism by leaves and roots
(Wiley, 2013-03)
Hydraulic architecture was studied in shrub species differing in rooting depth in a cold desert in Southern Argentina. All species exhibited strong hydraulic segmentation between leaves, stems and roots with leaves being ...
The cost of avoiding freezing in stems: Trade-off between xylem resistance to cavitation and supercooling capacity in woody plants
(Oxford University Press, 2017-06)
Stems and leaves of Olea europaea L. (olive) avoid freezing damage by substantial supercooling during the winter season. Physiological changes during acclimation to low temperatures were studied in five olive cultivars. ...
Dry weight partitioning and hydraulic traits in young Pinus taeda trees fertilized with nitrogen and phosphorus in a subtropical area
(Oxford University Press, 2013-02)
Plants of Pinus taeda L. from each of four families were fertilized with nitrogen (N), phosphorus (P) or N + P at planting. The H family had the highest growth in dry mass while the L family had the lowest growth. Measurements ...
Coordination of leaf and stem water transport properties in tropical forest trees
(Springer, 2008-05)
Stomatal regulation of transpiration constrains leaf water potential (ΨL) within species-specific ranges that presumably avoid excessive tension and embolism in the stem xylem upstream. However, the hydraulic resistance ...