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Tree girdling : a tool to improve our understanding of coupled sugar and water transport

Veerle De Schepper and Kathy Steppe UGent (2013) Acta Horticulturae. 990. p.313-320
abstract
Girdling can be used as a valuable research tool to improve our understanding of the tight coupling between water (xylem) and sugar (phloem) transport. Therefore, double girdling was applied on young oak trees (Quercus robur L.) to manipulate the sugar flow by mechanically removing a complete band of bark at two different heights. The double girdling effects on both the water and sugar transport were investigated by analysing stem diameter variations, photosynthesis, xylem sap flow and content of carbohydrates. The double-girdled oak trees were divided in three stem zones: (1) the upper stem zone (U) still receiving new assimilates from the leaves, (2) the lowest stem zone (L) receiving only stored sugars from the roots, and (3) the middle stem zone (M) completely isolated from crown and roots. As downward carbon transport was interrupted by girdling, the stem expansion and carbohydrate content increased in U, indicating that U became the major sink instead of the roots. In contrast to U, stem expansion and carbohydrate content decreased in the two lower stem zones (M and L). Furthermore, a decrease in photosynthesis and sap flow rate was observed, which could be attributed to an indirect effect of girdling.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
VITIS-VINIFERA L., CITRUS LEAVES, photosynthesis, xylem, PINE TREES, ROOT, phloem, sap flow, RESERVES, PHOTOSYNTHESIS, EXPRESSION, DAMAGE, carbohydrate content, STARCH, LEAF, stem diameter variations
in
Acta Horticulturae
Acta Hortic.
editor
Johan Van Huylenbroek, Marie-Christine Van Labeke UGent and Katrijn Van Laere
volume
990
issue title
II International symposium on woody ornamentals of the temperate zone
pages
313 - 320
publisher
International Society for Horticultural Science (ISHS)
place of publication
Leuven, Belgium
conference name
2nd International symposium on Woody Ornamentals of the Temperate Zone
conference location
Ghent, Belgium
conference start
2012-07-01
conference end
2012-07-04
Web of Science type
Proceedings Paper
Web of Science id
000324930100037
ISSN
0567-7572
ISBN
9789066054776
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3628332
handle
http://hdl.handle.net/1854/LU-3628332
alternative location
http://www.actahort.org/books/990/990_37.htm
date created
2013-06-19 17:13:11
date last changed
2017-05-02 11:34:19
@inproceedings{3628332,
  abstract     = {Girdling can be used as a valuable research tool to improve our understanding of the tight coupling between water (xylem) and sugar (phloem) transport. Therefore, double girdling was applied on young oak trees (Quercus robur L.) to manipulate the sugar flow by mechanically removing a complete band of bark at two different heights. The double girdling effects on both the water and sugar transport were investigated by analysing stem diameter variations, photosynthesis, xylem sap flow and content of carbohydrates. The double-girdled oak trees were divided in three stem zones: (1) the upper stem zone (U) still receiving new assimilates from the leaves, (2) the lowest stem zone (L) receiving only stored sugars from the roots, and (3) the middle stem zone (M) completely isolated from crown and roots. As downward carbon transport was interrupted by girdling, the stem expansion and carbohydrate content increased in U, indicating that U became the major sink instead of the roots. In contrast to U, stem expansion and carbohydrate content decreased in the two lower stem zones (M and L). Furthermore, a decrease in photosynthesis and sap flow rate was observed, which could be attributed to an indirect effect of girdling.},
  author       = {De Schepper, Veerle and Steppe, Kathy},
  booktitle    = {Acta Horticulturae},
  editor       = {Van Huylenbroek, Johan and Van Labeke, Marie-Christine and Van Laere, Katrijn},
  isbn         = {9789066054776},
  issn         = {0567-7572},
  keyword      = {VITIS-VINIFERA L.,CITRUS LEAVES,photosynthesis,xylem,PINE TREES,ROOT,phloem,sap flow,RESERVES,PHOTOSYNTHESIS,EXPRESSION,DAMAGE,carbohydrate content,STARCH,LEAF,stem diameter variations},
  language     = {eng},
  location     = {Ghent, Belgium},
  pages        = {313--320},
  publisher    = {International Society for Horticultural Science (ISHS)},
  title        = {Tree girdling : a tool to improve our understanding of coupled sugar and water transport},
  url          = {http://www.actahort.org/books/990/990\_37.htm},
  volume       = {990},
  year         = {2013},
}

Chicago
De Schepper, Veerle, and Kathy Steppe. 2013. “Tree Girdling : a Tool to Improve Our Understanding of Coupled Sugar and Water Transport.” In Acta Horticulturae, ed. Johan Van Huylenbroek, Marie-Christine Van Labeke, and Katrijn Van Laere, 990:313–320. Leuven, Belgium: International Society for Horticultural Science (ISHS).
APA
De Schepper, V., & Steppe, K. (2013). Tree girdling : a tool to improve our understanding of coupled sugar and water transport. In J. Van Huylenbroek, M.-C. Van Labeke, & K. Van Laere (Eds.), Acta Horticulturae (Vol. 990, pp. 313–320). Presented at the 2nd International symposium on Woody Ornamentals of the Temperate Zone, Leuven, Belgium: International Society for Horticultural Science (ISHS).
Vancouver
1.
De Schepper V, Steppe K. Tree girdling : a tool to improve our understanding of coupled sugar and water transport. In: Van Huylenbroek J, Van Labeke M-C, Van Laere K, editors. Acta Horticulturae. Leuven, Belgium: International Society for Horticultural Science (ISHS); 2013. p. 313–20.
MLA
De Schepper, Veerle, and Kathy Steppe. “Tree Girdling : a Tool to Improve Our Understanding of Coupled Sugar and Water Transport.” Acta Horticulturae. Ed. Johan Van Huylenbroek, Marie-Christine Van Labeke, & Katrijn Van Laere. Vol. 990. Leuven, Belgium: International Society for Horticultural Science (ISHS), 2013. 313–320. Print.