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@ARTICLE{Henkes:61831,
author = {Henkes, G.J. and Thorpe, M. R. and Minchin, P. E. H. and
Schurr, U. and Röse, U. S. R.},
title = {{J}asamonic acid treatment to part of the root system is
consistent with simulated leaf herbivory, diverting recently
assimilated carbon towards untreated roots within an hour},
journal = {Plant, cell $\&$ environment},
volume = {31},
issn = {0140-7791},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {PreJuSER-61831},
pages = {1229 - 1236},
year = {2008},
note = {We thank Marco Dautzenberg for his help in the preparation
of <SUP>11</SUP>C tracer and plant labelling; and Gregoire
Hummel and Arnaud Lanoue for their assistance and helpful
discussions. This work emerged out of the Virtual Institute
for Biotic Interactions (ViBi), which is financially funded
by the Helmholtz Association of German Research Centres.},
abstract = {It is known that shoot application of jasmonic acid (JA)
leads to an increased carbon export from leaves to stem and
roots, and that root treatment with JA inhibits root growth.
Using the radioisotope (11)C, we measured JA effects on
carbon partitioning in sterile, split-root, barley plants.
JA applied to one root half reduced carbon partitioning to
the JA-treated tissue within minutes, whereas the untreated
side showed a corresponding--but slower--increase. This
response was not observed when instead of applying JA, the
sink strength of one root half was reduced by cooling it:
there was no enhanced partitioning to the untreated roots.
The slower response in the JA-untreated roots, and the
difference between the effect of JA and temperature, suggest
that root JA treatment caused transduction of a signal from
the treated roots to the shoot, leading to an increase in
carbon allocation from the leaves to the untreated root
tissue, as was indeed observed 10 min after the shoot
application of JA. This supports the hypothesis that the
response of some plant species to both leaf and root
herbivores may be the diversion of resources to safer
locations.},
keywords = {Analysis of Variance / Biological Transport: drug effects /
Carbon: metabolism / Carbon Radioisotopes: metabolism /
Cyclopentanes: pharmacology / Hordeum: drug effects /
Hordeum: growth $\&$ development / Hordeum: metabolism /
Oxylipins: pharmacology / Plant Growth Regulators:
pharmacology / Plant Leaves: drug effects / Plant Leaves:
growth $\&$ development / Plant Leaves: metabolism / Plant
Roots: drug effects / Plant Roots: growth $\&$ development /
Plant Roots: metabolism / Plant Shoots: drug effects / Plant
Shoots: growth $\&$ development / Plant Shoots: metabolism /
Signal Transduction: drug effects / Temperature / Carbon
Radioisotopes (NLM Chemicals) / Cyclopentanes (NLM
Chemicals) / Oxylipins (NLM Chemicals) / Plant Growth
Regulators (NLM Chemicals) / jasmonic acid (NLM Chemicals) /
Carbon (NLM Chemicals) / J (WoSType)},
cin = {ICG-3},
ddc = {570},
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:18507808},
UT = {WOS:000258410600003},
doi = {10.1111/j.1365-3040.2008.01828.x},
url = {https://juser.fz-juelich.de/record/61831},
}