© 1989 Heron Publishing—Victoria, Canada
Removal of ethanol from lodgepole pine roots
R. M. M. Crawford and D. M. Finegan
Plant Science Laboratories, Sir Harold Mitchell Building, The University, St. Andrews, Scotland KY16 9AL / Received September 12, 1988
Summary
The removal of ethanol from flooded tree roots was examined in three provenances of lodgepole pine (Pinus contorta) Dougl. Less than 0.2% of the ethanol generated by the roots escaped by the gaseous pathway provided by the lenticels. A
large proportion, however, was transported from the roots in the transpiration stream. Gas chromatographic detection of ethanol
emanating from the lenticels provided a sensitive indicator of oxygen deficits in the roots.
