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@ARTICLE{Jahnke:3965,
author = {Jahnke, S. and Menzel, M. I. and van Dusschoten, D. and
Roeb, G. W. and Bühler, J. and Minwuyelet, S. and Blümler,
P. and Temperton, V. M. and Hombach, T. and Streun, M. and
Beer, S. and Khodaverdi, M. and Ziemons, K. and Coenen, H.
H. and Schurr, U.},
title = {{C}ombined {MRI}-{PET} dissects dynamic changes in plant
structures and functions},
journal = {The plant journal},
volume = {59},
issn = {0960-7412},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {PreJuSER-3965},
pages = {634 - 644},
year = {2009},
note = {Record converted from VDB: 12.11.2012},
abstract = {Unravelling the factors determining the allocation of
carbon to various plant organs is one of the great
challenges of modern plant biology. Studying allocation
under close to natural conditions requires non-invasive
methods, which are now becoming available for measuring
plants on a par with those developed for humans. By
combining magnetic resonance imaging (MRI) and positron
emission tomography (PET), we investigated three contrasting
root/shoot systems growing in sand or soil, with respect to
their structures, transport routes and the translocation
dynamics of recently fixed photoassimilates labelled with
the short-lived radioactive carbon isotope (11)C. Storage
organs of sugar beet (Beta vulgaris) and radish plants
(Raphanus sativus) were assessed using MRI, providing images
of the internal structures of the organs with high spatial
resolution, and while species-specific transport
sectoralities, properties of assimilate allocation and
unloading characteristics were measured using PET. Growth
and carbon allocation within complex root systems were
monitored in maize plants (Zea mays), and the results may be
used to identify factors affecting root growth in natural
substrates or in competition with roots of other plants.
MRI-PET co-registration opens the door for non-invasive
analysis of plant structures and transport processes that
may change in response to genomic, developmental or
environmental challenges. It is our aim to make the methods
applicable for quantitative analyses of plant traits in
phenotyping as well as in understanding the dynamics of key
processes that are essential to plant performance.},
keywords = {Beta vulgaris / Carbon Radioisotopes / Magnetic Resonance
Imaging: methods / Plant Roots: anatomy $\&$ histology /
Plant Roots: metabolism / Plant Shoots: anatomy $\&$
histology / Plant Shoots: metabolism / Positron-Emission
Tomography: methods / Raphanus / Zea mays / Carbon
Radioisotopes (NLM Chemicals) / J (WoSType)},
cin = {ICG-3 / INM-5},
ddc = {580},
cid = {I:(DE-Juel1)ICG-3-20090406 / I:(DE-Juel1)INM-5-20090406},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Plant Sciences},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:19392708},
UT = {WOS:000268961600011},
doi = {10.1111/j.1365-313X.2009.03888.x},
url = {https://juser.fz-juelich.de/record/3965},
}