Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, 9000 Gent, Belgium; Institute of Environment, Department of Biological Sciences, Florida International University, Miami, FL, USA
School of the Environment, Yale University, New Haven, CT, USA
UGent Centre for X-ray Tomography (UGCT) – Radiation Physics Group, Department of Physics & Astronomy, Ghent University, Proeftuinstraat 86, 9000 Gent, Belgium
Food Structure & Function Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, 9000 Gent, Belgium
Laboratory of Plant Ecology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure links 653, 9000 Gent, Belgium
Abstract Background and AimsFoliar water uptake has recently been suggested as a possible mechanism for the restoration of hydraulically dysfunctional xylem vessels. In this paper we used a combination of ecophysiological measurements, X-ray microcomputed tomography and cryo-scanning electron microscopy during a drought treatment to fully evaluate this hypothesis. Key ResultsBased on an assessment of these methods in beech (Fagus sylvatica L.) seedlings we were able to (1) confirm an increase in the amount of hydraulically redistributed water absorbed by leaves when the soil water potential decreased, and (2) locate this redistributed water in hydraulically active vessels in the stem. However, (3) no embolism repair was observed irrespective of the organ under investigation (i.e. stem, petiole or leaf) or the intensity of drought. ConclusionsOur data provide evidence for a hydraulic pathway from the leaf surface to the stem xylem following a water potential gradient, but this pathway exists only in functional vessels and does not play a role in embolism repair for beech.
Schreel, Jeroen D. M., et al. "Foliar water uptake does not contribute to embolism repair in beech ( <i>Fagus sylvatica</i> L.)." Annals of Botany, vol. 129, no. 5, Feb. 2022. https://doi.org/10.1093/aob/mcac016
Schreel, Jeroen D. M., Brodersen, Craig, De Schryver, Thomas, Dierick, Manuel, Rubinstein, Adriana, Dewettinck, Koen, Boone, Matthieu N., Van Hoorebeke, Luc, & Steppe, Kathy (2022). Foliar water uptake does not contribute to embolism repair in beech ( <i>Fagus sylvatica</i> L.). Annals of Botany, 129(5). https://doi.org/10.1093/aob/mcac016
Schreel, Jeroen D. M., Brodersen, Craig, De Schryver, Thomas, et al., "Foliar water uptake does not contribute to embolism repair in beech ( <i>Fagus sylvatica</i> L.)," Annals of Botany 129, no. 5 (2022), https://doi.org/10.1093/aob/mcac016
@article{osti_1982489,
author = {Schreel, Jeroen D. M. and Brodersen, Craig and De Schryver, Thomas and Dierick, Manuel and Rubinstein, Adriana and Dewettinck, Koen and Boone, Matthieu N. and Van Hoorebeke, Luc and Steppe, Kathy},
title = {Foliar water uptake does not contribute to embolism repair in beech ( <i>Fagus sylvatica</i> L.)},
annote = {Abstract Background and AimsFoliar water uptake has recently been suggested as a possible mechanism for the restoration of hydraulically dysfunctional xylem vessels. In this paper we used a combination of ecophysiological measurements, X-ray microcomputed tomography and cryo-scanning electron microscopy during a drought treatment to fully evaluate this hypothesis. Key ResultsBased on an assessment of these methods in beech (Fagus sylvatica L.) seedlings we were able to (1) confirm an increase in the amount of hydraulically redistributed water absorbed by leaves when the soil water potential decreased, and (2) locate this redistributed water in hydraulically active vessels in the stem. However, (3) no embolism repair was observed irrespective of the organ under investigation (i.e. stem, petiole or leaf) or the intensity of drought. ConclusionsOur data provide evidence for a hydraulic pathway from the leaf surface to the stem xylem following a water potential gradient, but this pathway exists only in functional vessels and does not play a role in embolism repair for beech.},
doi = {10.1093/aob/mcac016},
url = {https://www.osti.gov/biblio/1982489},
journal = {Annals of Botany},
issn = {ISSN 0305-7364},
number = {5},
volume = {129},
place = {United States},
publisher = {Oxford University Press},
year = {2022},
month = {02}}
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 580, Issue 1https://doi.org/10.1016/j.nima.2007.05.099
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 580, Issue 1https://doi.org/10.1016/j.nima.2007.05.073