%0 Journal Article %1 Cochardetal_01 %A Cochard, H. %A Lemoine, D. %A Ameglio, T. %A Granier, A. %D 2001 %J Tree Physiology %K bibtex-import, citeulikeExport embolism, freezebolism, refilling, snowgumpapermaybe %P 27--33 %T Mechanisms of xylem recovery from winter embolism in Fagus sylvatica %U http://treephys.oxfordjournals.org/cgi/reprint/21/1/27 %V 21 %X Summary Hydraulic conductivity in the terminal branches of mature beech trees (Fagus sylvatica L.) decreased progres- sively during winter and recovered in the spring. The objective of this study was to determine the mechanisms involved in re- covery. Two periods of recovery were identified. The first re- covery of hydraulic conductivity occurred early in the spring, before bud break, and was correlated with the occurrence of positive xylem pressure at the base of the tree trunk. Active re- filling of the embolized vessels caused the recovery. The sec- ond recovery of hydraulic conductivity occurred after bud break and was correlated with the onset of cambial activity. Formation of new functional vessels, leading to an increase in xylem diameter, was largely responsible for the increase in xy- lem conductivity. The two mechanisms were complementary: active refilling of embolized vessels occurred mostly in the root and the trunk, whereas formation of new functional ves- sels occurred mainly in young terminal shoots.

@article{Cochardetal_01, abstract = {{Summary Hydraulic conductivity in the terminal branches of mature beech trees (Fagus sylvatica L.) decreased progres- sively during winter and recovered in the spring. The objective of this study was to determine the mechanisms involved in re- covery. Two periods of recovery were identified. The first re- covery of hydraulic conductivity occurred early in the spring, before bud break, and was correlated with the occurrence of positive xylem pressure at the base of the tree trunk. Active re- filling of the embolized vessels caused the recovery. The sec- ond recovery of hydraulic conductivity occurred after bud break and was correlated with the onset of cambial activity. Formation of new functional vessels, leading to an increase in xylem diameter, was largely responsible for the increase in xy- lem conductivity. The two mechanisms were complementary: active refilling of embolized vessels occurred mostly in the root and the trunk, whereas formation of new functional ves- sels occurred mainly in young terminal shoots.}}, added-at = {2019-03-31T01:14:40.000+0100}, author = {Cochard, H. and Lemoine, D. and Ameglio, T. and Granier, A.}, biburl = {https://www.bibsonomy.org/bibtex/2e22879d76a23fe57b7f8bc6fdb61a2d7/dianella}, citeulike-article-id = {1523652}, citeulike-linkout-0 = {http://treephys.oxfordjournals.org/cgi/reprint/21/1/27}, interhash = {1843a57be1dc4f50e10069a60d7f516b}, intrahash = {e22879d76a23fe57b7f8bc6fdb61a2d7}, journal = {Tree Physiology}, keywords = {bibtex-import, citeulikeExport embolism, freezebolism, refilling, snowgumpapermaybe}, pages = {27--33}, posted-at = {2007-07-31 06:12:43}, priority = {0}, timestamp = {2019-03-31T01:16:26.000+0100}, title = {{Mechanisms of xylem recovery from winter embolism in Fagus sylvatica}}, url = {http://treephys.oxfordjournals.org/cgi/reprint/21/1/27}, volume = 21, year = 2001 }