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@ARTICLE{Folkers:56260,
author = {Folkers, A. and Hüve, K. and Ammann, C. and Dindorf, T.
and Kesselmeier, J. and Kleist, E. and Kuhn, U. and
Uerlings, R. and Wildt, J.},
title = {{M}ethanol emissions from deciduous tree species:
dependence on temperature and light intensity},
journal = {Plant biology},
volume = {10},
issn = {1435-8603},
address = {Oxford [u.a.] :Wiley- Blackwell},
publisher = {Wiley-Blackwell - STM},
reportid = {PreJuSER-56260},
pages = {65 - 75},
year = {2008},
note = {Record converted from VDB: 12.11.2012},
abstract = {Methanol emissions from several deciduous tree species with
predominantly mature leaves were measured under laboratory
and field conditions. The emissions were modulated by
temperature and light. Under constant light conditions in
the laboratory, methanol emissions increased with leaf
temperature, by up to $12\%$ per degree. At constant
temperatures, emissions doubled when light intensity (PAR)
increased from darkness to 800 micromol x m(-2) x s(-1). A
phenomenological description of light and temperature
dependencies was derived from the laboratory measurements.
This description was successfully applied to reproduce the
diel cycle of methanol emissions from an English oak
measured in the field. Labelling experiments with (13)CO(2)
provided evidence that less than $10\%$ of the emitted
methanol was produced de novo by photosynthesis directly
prior to emission. Hence, the light dependence of the
emissions cannot be explained by instantaneous production
from CO(2) fixation. Additional experiments with selective
cooling of plant roots indicated that a substantial fraction
of the emitted methanol may be produced in the roots or stem
and transported to stomata by the transpiration stream.
However, the transpiration stream cannot be considered as
the main factor that determines methanol emissions by the
investigated plants.},
keywords = {Carbon Dioxide: metabolism / Carbon Isotopes / Circadian
Rhythm: radiation effects / Light / Methanol: metabolism /
Plant Roots: physiology / Plant Roots: radiation effects /
Plant Transpiration: physiology / Plant Transpiration:
radiation effects / Quercus: metabolism / Quercus: radiation
effects / Temperature / Carbon Isotopes (NLM Chemicals) /
Carbon Dioxide (NLM Chemicals) / Methanol (NLM Chemicals) /
J (WoSType)},
cin = {ICG-3},
ddc = {580},
cid = {I:(DE-Juel1)ICG-3-20090406},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Plant Sciences},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:18211548},
UT = {WOS:000252496800007},
doi = {10.1111/j.1438-8677.2007.00012.x},
url = {https://juser.fz-juelich.de/record/56260},
}